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We will do our best to expedite. Finally, we have also been addressing social justice and access in our podcast, where we interviewed disability activist Alice Wong and most recently Dr Oni Blackstock, primary care physician and HIV specialist in New York. We hope to have many more on these can you buy over the counter viagra critical subjects.We wish all of you good health and safety and know that many of you are yet on the front lines. Thank you for being part of the community of Medical Humanities.IntroductionMinecraft is a computer game with no specific goals to accomplish. The gameworld consists of three-dimensional (3D) cubes and objects which the can you buy over the counter viagra player (Steve) can mine and build into infinitely complex (and logically impossible) structures.

Steve sometimes encounters other characters (‘mobs’), such as animals and hostile creatures. He can ‘spawn’ and destroy them. While it looks like a harmless game of logical construction, can you buy over the counter viagra it conveys some worryingly delusive ideas about the real world. The difference between real and imagined structures is at the heart of the age-old debate around categorising mental disorders.Classification in mental health has had various forms throughout history. Mack and can you buy over the counter viagra colleagues set out a history of psychiatric classification beginning in 2600 BC with Egyptian references to melancholia and hysteria.

Through the Ancient Greeks with Hippocrates’ phrenitis, mania, melancholia, epilepsy, hysteria and Scythian disease. Through the Renaissance period. Through to 19th-century psychiatry featuring Pinel (known as the first psychiatrist), Kraepelin (known for observational classification) and Freud (known for classifying neurosis and psychosis).1Although the history of psychiatric classification identifies some common trends such as the labels ‘melancholia’ and can you buy over the counter viagra ‘hysteria’ which have survived millennia, the label ‘depression’ is relatively new. The earliest usage noted by Snaith is from 1899. €˜in simple pathological depression…the patient exhibits a growing indifference to his former pursuits…’.2 Snaith noted that early 20th-century psychiatrists like Adolf Meyer hoped that ‘depression’ would come to encompass a broad category under which descriptions of subtypes would can you buy over the counter viagra emerge.

This did not happen until the middle of the 20th century. With the publication of the sixth International Classification of Diseases (ICD) in 1948 and the Diagnostic and Statistical Manual of Mental Disorders (DSM) in 1952 and their subsequent revisions, the latter half of the 20th century has seen depression subtype labels proliferate. In their study of the social determinants of diagnostic labels in depression, McPherson and Armstrong illustrate how the codification of depression subtypes in the latter half of the 20th century has been shaped by the evolving context of psychiatry, including power struggles within the profession, a move to can you buy over the counter viagra community care and the development of psychopharmacology.3During this period, McPherson and Armstrong describe how subsequent versions of the DSM served as battlegrounds for professional disputes and philosophical quarrels around categorisation of mental disorders. DSM I and DSM II have been described as products of an American Psychiatric Association dominated by psychoanalytic psychiatrists.4 DSM III and DSM III-R have been described as a radical rejection of psychoanalytic thinking, a ‘neo-Kraepelinian revolution’, a reference to the observational descriptive techniques of 19th-century psychiatrist Emil Kraepelin who classified mental disorders into two broad categories. €˜dementia praecox’ and ‘manic-depression’.5 DSM III was seen by some as a turning point in the use of the medical model of mental illness, through provision of specific inclusion and exclusion criteria, can you buy over the counter viagra and use of field trials and a multiaxial system.6 These latter technocratic additions to psychiatric labelling served to engender a much closer alignment between psychiatry, science and medicine.The codification of mental disorders in manuals has been described by Thomas Schacht as intrinsic to the relationship between science and politics and the way in which psychiatrists gain significant social power by aligning themselves to science.7 His argument drew on Szasz, who saw the mental health establishment as a therapeutic state.

Zimbardo, who described psychiatric care as a controlling force. And Foucault, who described the categorisation of the mentally ill as a force for isolating ‘the other’. Diagnostic critique has been further developed through a cultural relativist lens in that what Western psychiatrists classify as a depression is constructed differently in other cultures.8 Considering these limitations, some critics have gone so far as to argue that psychiatric diagnostic systems should be abolished.9Yet architects of DSM manuals have worked hard can you buy over the counter viagra to ensure the technology of classification is regarded as genuine scientific activity with sound roots in philosophy of science. In their philosophical defence of DSM IV, Allen Frances and colleagues address their critics under the headings ‘nominalism vs realism’, ‘empiricism vs rationalism’ and ‘categorical vs dimensional’.10 The implication is that there are opposing stances in which a choice must be made or a middle ground forged by those reasonable enough to recognise the need for pragmatism in the service of clinical utility. The nominalism–realism debate is illustrated using as metaphor three different stances a can you buy over the counter viagra cricket umpire might take on calling strikes and balls.

The discussion sets out two of these as extreme views. €˜at one extreme…those who take a reductionistically realistic view of the world’ versus ‘the solipsistic nominalists…might content that nothing exists’. Szasz, who is characterised as holding particularly extreme views, is named as an can you buy over the counter viagra archetypal solipsist. There is implied to be a degree of arrogance associated with this view in the illustrative example in which the umpire states ‘there are no balls and there are no strikes until I call them’. Frances therefore sets up a means of grouping two kinds of people as philosophical extremists who can be dismissed, while avoiding addressing the philosophical problems they pose.Frances provides little if any justification for the middle ground stance, ‘There are balls and there are strikes and I call them as I see them’, other than to focus on its can you buy over the counter viagra clinical utility and the lack of clinical utility in the alternatives ‘naïve realism’ and ‘heuristically barren solipsism’.

The natural conclusion the reader is invited to reach is that a middle ground of a heuristic concept is naturally right because it is not extreme and is naturally useful clinically, without specifying in what way this stance is coherent, resolves the two alternatives, and in what way a heuristic construct that is not ‘real’ can be subject to scientific testing.Similarly, in discussing the ‘categorical vs dimensional’, Frances promotes the ‘prototype approach’. Those holding opposing views are labelled as ‘dualists’ or ‘dichotomisers’. The prototypical approach is again put forward as a can you buy over the counter viagra clinically useful middle ground. Illustrations are drawn from natural science. €˜a triangle and a square are never the same’, inciting the reader to consider science can you buy over the counter viagra as value-free.

The prototypical approach emerges as a natural solution, yet the authors do not address how a diagnostic prototype resolves the issues posed by the two alternatives, nor how a prototype can be subjected to natural science methods.The argument presented here is not a defence of solipsism or dualism. Rather it aims to illustrate that if for pragmatic purposes clinicians and policymakers choose to gloss over the philosophical flaws in classification practices, it is then risky to move beyond the heuristic and apply natural science methods to these constructs adding multiple layers of technocratic subclassification. Doing so is more like playing Minecraft than can you buy over the counter viagra cricket. The National Institute for Health and Care Excellence (NICE) guideline for depression is taken as an example of the philosophical errors that can follow from playing Minecraft with unsound heuristic devices, specifically subcategories of persistent forms of depression. As well as serving a clinical purpose, diagnosis in medicine is a way of allocating resources for insurance companies and constructing clinical guidelines, which in turn determine can you buy over the counter viagra rationing within the National Health Service.

The consequences for recipients of healthcare are therefore significant. Clinical utility is arguably not being served at all and patients are left at risk of poor-quality care.Heterogeneity of persistent depressionAndrea Jobst and colleagues note that ‘because of their chronic clinical course, approximately 40% of CD [chronic depression] patients also fulfil criteria for TRD [treatment resistant depression]…usually defined by the number of non-successful biological treatments’.11 This position is reflected in the DSM VAmerican Psychiatric Association (2013), the European Psychiatric Association (EPA) guidance and the ICD-11(World Health Organisation, 2018), which all use a ‘persistent’ depression category, acknowledging a loosely defined mixed group of long-term, difficult-to-treat depressive conditions, often associated with dysthymia and comorbid common mental disorders, various personality traits and psychosocial disability.In contrast, the NICE 2018 draft guideline separates treatments into those for ‘new episodes’ of depression. €˜further-line’ treatment of can you buy over the counter viagra depression (equivalent to TRD), CD and ‘depression with co-morbidities’. The latter is subdivided into treatments for ‘complex depression’ and ‘psychotic depression’. These categories and subcategories introduce an unfortunate sense can you buy over the counter viagra of certainty as though these labels represent real things.

An analysis follows of how these definitions play out in terms of grouping of randomised controlled trials in the NICE evidence review. Specifically, the analysis reveals the overlap between populations in trials which have been separated into discrete categories, revealing significant limitations to the utility of the category labels.The NICE definition of CD requires trial samples to meet the criteria for major depressive disorder (MDD) for 2 years. Dysthymia and can you buy over the counter viagra double depression (MDD superimposed on dysthymia) were included. If 75% of the trial population met these criteria, the trial was reviewed in the CD category.12 The definition of TRD (or ‘further-line treatments’) required that the trial sample had demonstrated a ‘limited response to previous treatment’ and randomised to the further-line treatment at this point. If 80% of the trial participants met these criteria, it was reviewed in can you buy over the counter viagra the TRD category.13 Complex depression was defined as ‘depression co-existing with personality disorder’.

To be classed as complex, 51% of trial participants had to have personality disorder (PD).14It is immediately clear from these definitions that there is a potential problem with attempting to categorise trial populations into just one of these categories. These populations are likely to overlap, whether or not a trial protocol sets out to explicitly record all of this information. The analysis below will illustrate this using examples from can you buy over the counter viagra within the NICE review.Cataloguing complexity in trial populationsWithin the category of further-line treatments (TRD), 64 trials were reviewed. Comparisons within these trials were further subcategorised into ‘dose escalation strategies’, ‘augmentation strategies’ and ‘switching strategies’. In drilling down by way of illustration, this can you buy over the counter viagra analysis considers the 51 trials in the augmentation strategy evidence review.

Of these, two were classified by the reviewers as also fulfilling the criteria for CD but were not analysed in the CD category (Study IDs. Fonagy 2015 and Kocsis 200915). About half of the trials (23/51) did not report the mean duration of episode, meaning that it is not possible to know what percentage of participants also met the can you buy over the counter viagra criteria for CD. Of trials that did report episode duration, 17 reported a mean duration longer than 24 months. While the standard deviations varied can you buy over the counter viagra in size or were unreported, the mean indicates a good likelihood that a significant proportion of the participants across these 51 trials met the criteria for CD.Details of baseline employment, trauma history, suicidality, physical comorbidity, axis I comorbidity and PD (all clinical indicators of complexity, severity and chronicity) were not collated by NICE.

For the present analysis, all 51 publications were examined and data compiled concerning clinical complexity in the trial populations. Only 14 of 51 trials report employment data. Of those that do, can you buy over the counter viagra unemployment ranges from 12% to 56% across trial samples. None of the trials report trauma history. About half of the trials can you buy over the counter viagra (26/51) excluded people who were considered a suicide risk.

The others did not.A large proportion of trials (30/51) did not provide any data on axis 1 comorbidity. Of these, 18 did not exclude any diagnoses, while 12 excluded some (but not all) disorders. The most common diagnoses excluded were psychotic can you buy over the counter viagra disorders, substance or alcohol abuse, and bipolar disorder (excluded in 26, 25 and 23 trials, respectively). Only 7 of 51 trials clearly stated that all axis 1 diagnoses were excluded. This leaves only 13 studies providing any data can you buy over the counter viagra about comorbidity.

Of these, 9 gave partial data on one or two conditions, while 4 reported either the mean number of disorders (range 1.96–2.9) or the percentage of participants (range 68.1–96.7) with any comorbid diagnosis (Nierenberg 2003a, Nierenberg 2006, Watkins 2011a, Town 201715).The majority of trials (46/51) did not report the prevalence of PD. Many stated PD as an exclusion criterion but without defining a threshold for exclusion. For example, PD could be excluded if it can you buy over the counter viagra ‘impacted’ the depression, if it was ‘significant’, ‘severe’ or ‘persistent’. Some excluded certain PDs (such as antisocial or borderline) and not others but without reporting the prevalence of those not excluded. In the can you buy over the counter viagra five trials where prevalence was clear, prevalence ranged from 0% (Ravindran 2008a15), where all PDs were excluded, to 87.5% of the sample (Town 201715).

Two studies reported the mean number of PDs. 2.0 (Nierenberg 2003a) and 0.85 (Watkins 2011a15).The majority of trials (43/51) did not report the prevalence of physical illness. Many stated can you buy over the counter viagra illness as an exclusion criterion, but the definitions and thresholds were vague and could be interpreted in different ways. For example, illness could be excluded if it was ‘unstable’, ‘serious’, ‘significant’, ‘relevant’, or would ‘contraindicate’ or ‘impact’ the medication. Of the can you buy over the counter viagra eight trials reporting information about physical health, there was a wide variation.

Four reported prevalence varying from 7.6% having a disability (Eisendrath 201615) to 90.9% having an illness or disability (Town 201715). Four used scales of physical health. Two indicating can you buy over the counter viagra mild problems (Nierenberg 2006, Lavretsky 201115) and two indicating moderately high levels of illness (Thase 2007, Fang 201015).The NICE review also divided trial populations into a dichotomy of ‘more severe’ and ‘less severe’ on the grounds that this would be a clinically useful classification for general practitioners. NICE applied a bespoke methodology for creating this dichotomy, abandoning validated measure thresholds in order first to generate two ‘homogeneous’ groups to ‘facilitate analysis’, and second to create an algorithm to ‘read across’ different measures (such as the Beck Depression Inventory, the Hamilton Rating Scale for Depression (HRSD) and the Montgomery-Asberg Depression Rating Scale).16 Examining trials which use more than one of these measures reveals problems in the algorithm. Of the 51 trials, there are 6 instances in which the study population falls into NICE’s more severe category can you buy over the counter viagra according to one measure and into the less severe category according to another.

In four of these trials, NICE chose the less severe category (Souza 2016, Watkins 2011a, Fonagy 2015, Town 201715). The other two trials were designated more severe (Barbee 2011, Dunner 200715). Only 17 of 51 trials can you buy over the counter viagra reported two or more depression scale measures, leaving much unknown about whether other study populations could count as both more severe and less severe.Absence of knowledge or knowledge of absence?. A key philosophical error in science is to confuse an absence of knowledge with knowledge of absence. It is likely can you buy over the counter viagra that some of the study populations deemed lacking in complexity or severity could actually have high degrees of complexity and/or severity.

Data to demonstrate this may either fall foul of a guideline committee decision to prioritise certain information over other conflicting information (as in the severity algorithm). The information may be non-existent as it was not collected. It may be somewhere in the publication pipeline can you buy over the counter viagra. Or it may be sitting in a database with a research team that has run out of funds for supplementary analyses. Wherever those data are or are not, their absence from published articles does not define the phenomenology of depression for the patients can you buy over the counter viagra who took part.

As a case in point, data from the Fonagy 2015 trial presented at conferences but not published reveal that PD prevalence data would place the trial well within the NICE complex depression category, and that the sample had high levels of past trauma and physical condition comorbidity. The trial also meets the guideline criteria for CD according to the guideline’s own appendices.17 Reported axis 1 comorbidity was high (75.2% had anxiety disorder, 18.6% had substance abuse disorder, 13.2% had eating disorder).18 The mean depression scores at baseline were 36.5 on the Beck Depression Inventory and 20.1 on the HRSD (severe and very severe, respectively, according to published cut-off scores). NICE categorised this population as less severe TRD, not CD and not can you buy over the counter viagra complex.Notes1. Avram H. Mack et al can you buy over the counter viagra.

(1994), “A Brief History of Psychiatric Classification. From the Ancients to DSM-IV,” Psychiatric Clinics 17, no. 3. 515–9.2. R.

P. Snaith (1987), “The Concepts of Mild Depression,” British Journal of Psychiatry 150, no. 3. 387.3. Susan McPherson and David Armstrong (2006), “Social Determinants of Diagnostic Labels in Depression,” Social Science &.

Medicine 62, no. 1. 52–7.4. Gerald N. Grob (1991), “Origins of DSM-I.

A Study in Appearance and Reality,” The American Journal of Psychiatry. 421–31.5. Wilson M. Compton and Samuel B. Guze (1995), “The Neo-Kraepelinian Revolution in Psychiatric Diagnosis,” European Archives of Psychiatry and Clinical Neuroscience 245, no.

4. 198–9.6. Gerald L. Klerman (1984), “A Debate on DSM-III. The Advantages of DSM-III,” The American Journal of Psychiatry.

539–42.7. Thomas E. Schacht (1985), “DSM-III and the Politics of Truth,” American Psychologist. 513–5.8. Daniel F.

Hartner and Kari L. Theurer (2018), “Psychiatry Should Not Seek Mechanisms of Disorder,” Journal of Theoretical and Philosophical Psychology 38, no. 4. 189–204.9. Sami Timimi (2014), “No More Psychiatric Labels.

Why Formal Psychiatric Diagnostic Systems Should Be Abolished,” Journal of Clinical and Health Psychology 14, no. 3. 208–15.10. Allen Frances et al. (1994), “DSM-IV Meets Philosophy,” The Journal of Medicine and Philosophy.

A Forum for Bioethics and Philosophy of Medicine 19, no. 3. 207–18.11. Andrea Jobst et al. (2016), “European Psychiatric Association Guidance on Psychotherapy in Chronic Depression Across Europe,” European Psychiatry 33.

20.12. National Institute for Health and Care Excellence (2018), Depression in Adults. Treatment and Management. Draft for Consultation, https://www.nice.org.uk/guidance/gid-cgwave0725/documents/full-guideline-updated, 507.13. Ibid., 351–62.14.

Ibid., 597.15. Note that in order to refer to specific trials reviewed in the guideline, rather than the full citation, the Study IDs from column A in appendix J5 have been used. See www.nice.org.uk/guidance/gid-cgwave0725/documents/addendum-appendix-9 for details and full references.16. National Institute for Health and Care Excellence (2018), Depression in Adults. Treatment and Management.

Second Consultation on Draft Guideline – Stakeholder Comments Table, https://www.nice.org.uk/guidance/gid-cgwave0725/documents/consultation-comments-and-responses-2, 420–1.17. National Institute for Health and Care Excellence (2018), Depression in Adults, appendix J5.18. Peter Fonagy et al. (2015), “Pragmatic Randomized Controlled Trial of Long-Term Psychoanalytic Psychotherapy for Treatment-Resistant Depression. The Tavistock Adult Depression Study (TADS),” World Psychiatry 14, no.

3. 312–21.19. American Psychological Association (2018), Clinical Practice Guideline for the Treatment of Depression in Children, Adolescents, and Young, Middle-aged, and Older Adults. Draft.20. Jacqui Thornton (2018), “Depression in Adults.

Campaigners and Doctors Demand Full Revision of NICE Guidance,” BMJ 361. K2681..

We live in unprecedented http://lmatecha.com/flagyl-otc-price/ times who can buy viagra. But what makes them without parallel is not the current viagra crisis nor the continued problems facing minorities in our institutions. Rather, it’s that for the first time, the problems of accessibility, rights and freedoms are now invading privileged who can buy viagra spaces. There can be no ‘getting back to normal’, because ‘normal’ only ever benefited the white, Western, patriarchal, abled and cis ideals. For many, the world is not who can buy viagra suddenly on fire.

It has long been burning.The present viagra lays bare systemic prejudice against the most vulnerable among us. We at Medical Humanities, with our focus on global health and social justice, welcome discussion about how the crisis has disproportionately affected racial and fiscal minorities, those from the disabled community, those who are LGBTQA+ and other vulnerable groups. What we focus on here, now, can lead to greater accessibility and equity in the future.In this expanded issue, we offer some of the incredible work being done across the field of medical humanities prior to the who can buy viagra erectile dysfunction treatment crisis, and we are already reviewing articles on the role of health humanities during the viagra. The process of academic publishing tends not to lend itself to immediacy, however, and the challenges of viagra means greater pressure on everyone, from the authors to the reviewers and readers.To remedy this, we at Medical Humanities have been increasing the work on our blog platform, a place where content can be quickly updated, and where conversations can occur among readers and writers. We openly invite submissions concerning the viagra, as well as topics relevant to our wider CFP (call for posts/papers) this year on social justice who can buy viagra and health, to both blog and journal.

We will do our best to expedite. Finally, we have also been addressing social justice and access in our podcast, where we interviewed disability activist Alice Wong and most recently Dr Oni Blackstock, primary care physician and HIV specialist in New York. We hope to have many more on these who can buy viagra critical subjects.We wish all of you good health and safety and know that many of you are yet on the front lines. Thank you for being part of the community of Medical Humanities.IntroductionMinecraft is a computer game with no specific goals to accomplish. The gameworld consists of three-dimensional (3D) cubes and objects which the player (Steve) can mine and build into infinitely complex (and logically impossible) structures who can buy viagra.

Steve sometimes encounters other characters (‘mobs’), such as animals and hostile creatures. He can ‘spawn’ and destroy them. While it looks like a harmless game of logical construction, it who can buy viagra conveys some worryingly delusive ideas about the real world. The difference between real and imagined structures is at the heart of the age-old debate around categorising mental disorders.Classification in mental health has had various forms throughout history. Mack and colleagues set out a history of psychiatric classification beginning in 2600 BC with Egyptian who can buy viagra references to melancholia and hysteria.

Through the Ancient Greeks with Hippocrates’ phrenitis, mania, melancholia, epilepsy, hysteria and Scythian disease. Through the Renaissance period. Through to 19th-century psychiatry featuring Pinel (known as the first who can buy viagra psychiatrist), Kraepelin (known for observational classification) and Freud (known for classifying neurosis and psychosis).1Although the history of psychiatric classification identifies some common trends such as the labels ‘melancholia’ and ‘hysteria’ which have survived millennia, the label ‘depression’ is relatively new. The earliest usage noted by Snaith is from 1899. €˜in simple pathological depression…the patient exhibits a growing indifference to his former pursuits…’.2 Snaith noted that early 20th-century psychiatrists like Adolf Meyer hoped that ‘depression’ would come to encompass a broad category under who can buy viagra which descriptions of subtypes would emerge.

This did not happen until the middle of the 20th century. With the publication of the sixth International Classification of Diseases (ICD) in 1948 and the Diagnostic and Statistical Manual of Mental Disorders (DSM) in 1952 and their subsequent revisions, the latter half of the 20th century has seen depression subtype labels proliferate. In their study of the social determinants of diagnostic labels in depression, McPherson and Armstrong illustrate how the codification of depression subtypes who can buy viagra in the latter half of the 20th century has been shaped by the evolving context of psychiatry, including power struggles within the profession, a move to community care and the development of psychopharmacology.3During this period, McPherson and Armstrong describe how subsequent versions of the DSM served as battlegrounds for professional disputes and philosophical quarrels around categorisation of mental disorders. DSM I and DSM II have been described as products of an American Psychiatric Association dominated by psychoanalytic psychiatrists.4 DSM III and DSM III-R have been described as a radical rejection of psychoanalytic thinking, a ‘neo-Kraepelinian revolution’, a reference to the observational descriptive techniques of 19th-century psychiatrist Emil Kraepelin who classified mental disorders into two broad categories. €˜dementia praecox’ and ‘manic-depression’.5 DSM III was seen by some as a turning point in the use of the medical model of mental illness, through provision of specific inclusion and exclusion criteria, and use of field trials and a multiaxial system.6 These latter technocratic additions to psychiatric labelling served to engender a much closer alignment between psychiatry, science and medicine.The codification of mental disorders in manuals has been described by Thomas Schacht as intrinsic to the relationship between science and politics and the way in which who can buy viagra psychiatrists gain significant social power by aligning themselves to science.7 His argument drew on Szasz, who saw the mental health establishment as a therapeutic state.

Zimbardo, who described psychiatric care as a controlling force. And Foucault, who described the categorisation of the mentally ill as a force for isolating ‘the other’. Diagnostic critique has been further developed through a cultural relativist lens in that what who can buy viagra Western psychiatrists classify as a depression is constructed differently in other cultures.8 Considering these limitations, some critics have gone so far as to argue that psychiatric diagnostic systems should be abolished.9Yet architects of DSM manuals have worked hard to ensure the technology of classification is regarded as genuine scientific activity with sound roots in philosophy of science. In their philosophical defence of DSM IV, Allen Frances and colleagues address their critics under the headings ‘nominalism vs realism’, ‘empiricism vs rationalism’ and ‘categorical vs dimensional’.10 The implication is that there are opposing stances in which a choice must be made or a middle ground forged by those reasonable enough to recognise the need for pragmatism in the service of clinical utility. The nominalism–realism debate who can buy viagra is illustrated using as metaphor three different stances a cricket umpire might take on calling strikes and balls.

The discussion sets out two of these as extreme views. €˜at one extreme…those who take a reductionistically realistic view of the world’ versus ‘the solipsistic nominalists…might content that nothing exists’. Szasz, who is characterised as holding particularly extreme views, is named who can buy viagra as an archetypal solipsist. There is implied to be a degree of arrogance associated with this view in the illustrative example in which the umpire states ‘there are no balls and there are no strikes until I call them’. Frances therefore sets up a means of grouping two kinds of people as philosophical extremists who can be dismissed, while who can buy viagra avoiding addressing the philosophical problems they pose.Frances provides little if any justification for the middle ground stance, ‘There are balls and there are strikes and I call them as I see them’, other than to focus on its clinical utility and the lack of clinical utility in the alternatives ‘naïve realism’ and ‘heuristically barren solipsism’.

The natural conclusion the reader is invited to reach is that a middle ground of a heuristic concept is naturally right because it is not extreme and is naturally useful clinically, without specifying in what way this stance is coherent, resolves the two alternatives, and in what way a heuristic construct that is not ‘real’ can be subject to scientific testing.Similarly, in discussing the ‘categorical vs dimensional’, Frances promotes the ‘prototype approach’. Those holding opposing views are labelled as ‘dualists’ or ‘dichotomisers’. The prototypical approach is who can buy viagra again put forward as a clinically useful middle ground. Illustrations are drawn from natural science. €˜a triangle who can buy viagra and a square are never the same’, inciting the reader to consider science as value-free.

The prototypical approach emerges as a natural solution, yet the authors do not address how a diagnostic prototype resolves the issues posed by the two alternatives, nor how a prototype can be subjected to natural science methods.The argument presented here is not a defence of solipsism or dualism. Rather it aims to illustrate that if for pragmatic purposes clinicians and policymakers choose to gloss over the philosophical flaws in classification practices, it is then risky to move beyond the heuristic and apply natural science methods to these constructs adding multiple layers of technocratic subclassification. Doing so is more like who can buy viagra playing Minecraft than cricket. The National Institute for Health and Care Excellence (NICE) guideline for depression is taken as an example of the philosophical errors that can follow from playing Minecraft with unsound heuristic devices, specifically subcategories of persistent forms of depression. As well as serving a clinical purpose, who can buy viagra diagnosis in medicine is a way of allocating resources for insurance companies and constructing clinical guidelines, which in turn determine rationing within the National Health Service.

The consequences for recipients of healthcare are therefore significant. Clinical utility is arguably not being served at all and patients are left at risk of poor-quality care.Heterogeneity of persistent depressionAndrea Jobst and colleagues note that ‘because of their chronic clinical course, approximately 40% of CD [chronic depression] patients also fulfil criteria for TRD [treatment resistant depression]…usually defined by the number of non-successful biological treatments’.11 This position is reflected in the DSM VAmerican Psychiatric Association (2013), the European Psychiatric Association (EPA) guidance and the ICD-11(World Health Organisation, 2018), which all use a ‘persistent’ depression category, acknowledging a loosely defined mixed group of long-term, difficult-to-treat depressive conditions, often associated with dysthymia and comorbid common mental disorders, various personality traits and psychosocial disability.In contrast, the NICE 2018 draft guideline separates treatments into those for ‘new episodes’ of depression. €˜further-line’ treatment of depression (equivalent to TRD), who can buy viagra CD and ‘depression with co-morbidities’. The latter is subdivided into treatments for ‘complex depression’ and ‘psychotic depression’. These categories who can buy viagra and subcategories introduce an unfortunate sense of certainty as though these labels represent real things.

An analysis follows of how these definitions play out in terms of grouping of randomised controlled trials in the NICE evidence review. Specifically, the analysis reveals the overlap between populations in trials which have been separated into discrete categories, revealing significant limitations to the utility of the category labels.The NICE definition of CD requires trial samples to meet the criteria for major depressive disorder (MDD) for 2 years. Dysthymia and double who can buy viagra depression (MDD superimposed on dysthymia) were included. If 75% of the trial population met these criteria, the trial was reviewed in the CD category.12 The definition of TRD (or ‘further-line treatments’) required that the trial sample had demonstrated a ‘limited response to previous treatment’ and randomised to the further-line treatment at this point. If 80% of the trial participants met these criteria, it was reviewed in who can buy viagra the TRD category.13 Complex depression was defined as ‘depression co-existing with personality disorder’.

To be classed as complex, 51% of trial participants had to have personality disorder (PD).14It is immediately clear from these definitions that there is a potential problem with attempting to categorise trial populations into just one of these categories. These populations are likely to overlap, whether or not a trial protocol sets out to explicitly record all of this information. The analysis below will illustrate this using examples from within the NICE review.Cataloguing complexity in trial populationsWithin the category of further-line who can buy viagra treatments (TRD), 64 trials were reviewed. Comparisons within these trials were further subcategorised into ‘dose escalation strategies’, ‘augmentation strategies’ and ‘switching strategies’. In drilling down by way of illustration, this analysis who can buy viagra considers the 51 trials in the augmentation strategy evidence review.

Of these, two were classified by the reviewers as also fulfilling the criteria for CD but were not analysed in the CD category (Study IDs. Fonagy 2015 and Kocsis 200915). About half who can buy viagra of the trials (23/51) did not report the mean duration of episode, meaning that it is not possible to know what percentage of participants also met the criteria for CD. Of trials that did report episode duration, 17 reported a mean duration longer than 24 months. While the standard deviations varied in size or were unreported, the mean indicates a good likelihood that a significant proportion of the who can buy viagra participants across these 51 trials met the criteria for CD.Details of baseline employment, trauma history, suicidality, physical comorbidity, axis I comorbidity and PD (all clinical indicators of complexity, severity and chronicity) were not collated by NICE.

For the present analysis, all 51 publications were examined and data compiled concerning clinical complexity in the trial populations. Only 14 of 51 trials report employment data. Of those that do, who can buy viagra unemployment ranges from 12% to 56% across trial samples. None of the trials report trauma history. About half of the trials who can buy viagra (26/51) excluded people who were considered a suicide risk.

The others did not.A large proportion of trials (30/51) did not provide any data on axis 1 comorbidity. Of these, 18 did not exclude any diagnoses, while 12 excluded some (but not all) disorders. The most common diagnoses excluded were psychotic disorders, substance who can buy viagra or alcohol abuse, and bipolar disorder (excluded in 26, 25 and 23 trials, respectively). Only 7 of 51 trials clearly stated that all axis 1 diagnoses were excluded. This leaves only 13 studies providing who can buy viagra any data about comorbidity.

Of these, 9 gave partial data on one or two conditions, while 4 reported either the mean number of disorders (range 1.96–2.9) or the percentage of participants (range 68.1–96.7) with any comorbid diagnosis (Nierenberg 2003a, Nierenberg 2006, Watkins 2011a, Town 201715).The majority of trials (46/51) did not report the prevalence of PD. Many stated PD as an exclusion criterion but without defining a threshold for exclusion. For example, who can buy viagra PD could be excluded if it ‘impacted’ the depression, if it was ‘significant’, ‘severe’ or ‘persistent’. Some excluded certain PDs (such as antisocial or borderline) and not others but without reporting the prevalence of those not excluded. In the who can buy viagra five trials where prevalence was clear, prevalence ranged from 0% (Ravindran 2008a15), where all PDs were excluded, to 87.5% of the sample (Town 201715).

Two studies reported the mean number of PDs. 2.0 (Nierenberg 2003a) and 0.85 (Watkins 2011a15).The majority of trials (43/51) did not report the prevalence of physical illness. Many stated illness as an exclusion criterion, but the definitions and thresholds were vague and could who can buy viagra be interpreted in different ways. For example, illness could be excluded if it was ‘unstable’, ‘serious’, ‘significant’, ‘relevant’, or would ‘contraindicate’ or ‘impact’ the medication. Of the eight trials who can buy viagra reporting information about physical health, there was a wide variation.

Four reported prevalence varying from 7.6% having a disability (Eisendrath 201615) to 90.9% having an illness or disability (Town 201715). Four used scales of physical health. Two indicating mild problems (Nierenberg 2006, Lavretsky 201115) and two indicating moderately high levels of illness (Thase 2007, Fang 201015).The NICE review also divided trial populations into a dichotomy who can buy viagra of ‘more severe’ and ‘less severe’ on the grounds that this would be a clinically useful classification for general practitioners. NICE applied a bespoke methodology for creating this dichotomy, abandoning validated measure thresholds in order first to generate two ‘homogeneous’ groups to ‘facilitate analysis’, and second to create an algorithm to ‘read across’ different measures (such as the Beck Depression Inventory, the Hamilton Rating Scale for Depression (HRSD) and the Montgomery-Asberg Depression Rating Scale).16 Examining trials which use more than one of these measures reveals problems in the algorithm. Of the 51 trials, there are 6 instances in which the study population falls into NICE’s more severe category according to one measure and into the who can buy viagra less severe category according to another.

In four of these trials, NICE chose the less severe category (Souza 2016, Watkins 2011a, Fonagy 2015, Town 201715). The other two trials were designated more severe (Barbee 2011, Dunner 200715). Only 17 of 51 trials reported two or more depression scale measures, leaving much who can buy viagra unknown about whether other study populations could count as both more severe and less severe.Absence of knowledge or knowledge of absence?. A key philosophical error in science is to confuse an absence of knowledge with knowledge of absence. It is likely that some of the study populations deemed lacking in complexity or severity could actually have high degrees of complexity and/or severity who can buy viagra.

Data to demonstrate this may either fall foul of a guideline committee decision to prioritise certain information over other conflicting information (as in the severity algorithm). The information may be non-existent as it was not collected. It may who can buy viagra be somewhere in the publication pipeline. Or it may be sitting in a database with a research team that has run out of funds for supplementary analyses. Wherever those data who can buy viagra are or are not, their absence from published articles does not define the phenomenology of depression for the patients who took part.

As a case in point, data from the Fonagy 2015 trial presented at conferences but not published reveal that PD prevalence data would place the trial well within the NICE complex depression category, and that the sample had high levels of past trauma and physical condition comorbidity. The trial also meets the guideline criteria for CD according to the guideline’s own appendices.17 Reported axis 1 comorbidity was high (75.2% had anxiety disorder, 18.6% had substance abuse disorder, 13.2% had eating disorder).18 The mean depression scores at baseline were 36.5 on the Beck Depression Inventory and 20.1 on the HRSD (severe and very severe, respectively, according to published cut-off scores). NICE categorised this population who can buy viagra as less severe TRD, not CD and not complex.Notes1. Avram H. Mack et who can buy viagra al.

(1994), “A Brief History of Psychiatric Classification. From the Ancients to DSM-IV,” Psychiatric Clinics 17, no. 3. 515–9.2. R.

P. Snaith (1987), “The Concepts of Mild Depression,” British Journal of Psychiatry 150, no. 3. 387.3. Susan McPherson and David Armstrong (2006), “Social Determinants of Diagnostic Labels in Depression,” Social Science &.

Medicine 62, no. 1. 52–7.4. Gerald N. Grob (1991), “Origins of DSM-I.

A Study in Appearance and Reality,” The American Journal of Psychiatry. 421–31.5. Wilson M. Compton and Samuel B. Guze (1995), “The Neo-Kraepelinian Revolution in Psychiatric Diagnosis,” European Archives of Psychiatry and Clinical Neuroscience 245, no.

4. 198–9.6. Gerald L. Klerman (1984), “A Debate on DSM-III. The Advantages of DSM-III,” The American Journal of Psychiatry.

539–42.7. Thomas E. Schacht (1985), “DSM-III and the Politics of Truth,” American Psychologist. 513–5.8. Daniel F.

Hartner and Kari L. Theurer (2018), “Psychiatry Should Not Seek Mechanisms of Disorder,” Journal of Theoretical and Philosophical Psychology 38, no. 4. 189–204.9. Sami Timimi (2014), “No More Psychiatric Labels.

Why Formal Psychiatric Diagnostic Systems Should Be Abolished,” Journal of Clinical and Health Psychology 14, no. 3. 208–15.10. Allen Frances et al. (1994), “DSM-IV Meets Philosophy,” The Journal of Medicine and Philosophy.

A Forum for Bioethics and Philosophy of Medicine 19, no. 3. 207–18.11. Andrea Jobst et al. (2016), “European Psychiatric Association Guidance on Psychotherapy in Chronic Depression Across Europe,” European Psychiatry 33.

20.12. National Institute for Health and Care Excellence (2018), Depression in Adults. Treatment and Management. Draft for Consultation, https://www.nice.org.uk/guidance/gid-cgwave0725/documents/full-guideline-updated, 507.13. Ibid., 351–62.14.

Ibid., 597.15. Note that in order to refer to specific trials reviewed in the guideline, rather than the full citation, the Study IDs from column A in appendix J5 have been used. See www.nice.org.uk/guidance/gid-cgwave0725/documents/addendum-appendix-9 for details and full references.16. National Institute for Health and Care Excellence (2018), Depression in Adults. Treatment and Management.

Second Consultation on Draft Guideline – Stakeholder Comments Table, https://www.nice.org.uk/guidance/gid-cgwave0725/documents/consultation-comments-and-responses-2, 420–1.17. National Institute for Health and Care Excellence (2018), Depression in Adults, appendix J5.18. Peter Fonagy et al. (2015), “Pragmatic Randomized Controlled Trial of Long-Term Psychoanalytic Psychotherapy for Treatment-Resistant Depression. The Tavistock Adult Depression Study (TADS),” World Psychiatry 14, no.

3. 312–21.19. American Psychological Association (2018), Clinical Practice Guideline for the Treatment of Depression in Children, Adolescents, and Young, Middle-aged, and Older Adults. Draft.20. Jacqui Thornton (2018), “Depression in Adults.

Campaigners and Doctors Demand Full Revision of NICE Guidance,” BMJ 361. K2681..

Natural viagra

The past week has seen an natural viagra explosion of media commentary about whether children in the UK should go back to school. Since ‘lockdown’ (23 March 2020) began schools have been open to vulnerable natural viagra children and young people, and to the children of ‘key workers’. Right from the start there have been differing opinions about the necessity or wisdom of closing schools.

Viner et al1 produced a rapid systematic review that concludes that school closures have less impact on rate and mortality than other social natural viagra distancing measures. Many countries have closed their schools for less time than the UK and have already started to reopen with several protective measures in place.2Concerns about the long-term economic, social and mental impact of lockdown led to the generation of plans to ‘get back to business’. This was conveyed to the natural viagra population of the UK on 10 May by the UK prime minister, Boris Johnson.

He announced a range of measures to gradually reduce the level of lockdown. This is in keeping with modelling undertaken by various groups, including a preprint (not peer-reviewed) modelling exercise natural viagra by Zhang et al.3Mr Johnson announced that there would be a phased return (in England) of some children to school from 1 June. There are no national guidelines as it is recognised that school have differences that require a flexible approach, but there are a broad set of principles relating to social distancing and hygiene.Government ministers and teachers’ unions have opposing views on the safety of reopening schools.

In a natural viagra joint statement nine unions representing teachers stated that they thought 1 June was too early to be safe.4 They recognise that the opening of schools is a vital part of restarting the UK economy, but they have concerns about the safety and welfare of children and others.Meanwhile, the education secretary, Gavin Williamson, spoke at a press conference on 16 May stating that scientific evidence backed their decision. Interestingly, much of his statement was not about the scientific evidence but setting out an emotive argument that school was essential for safe and happy children.There is a consequence to this, the longer that schools are closed the more that children miss out. Teachers know that natural viagra there are children out there that have not spoken or played with another child their own age for the last two months.

They know there are children from difficult or very unhappy homes for whom school is the happiest moment in their week, and it’s also the safest place for them to be. The poorest children will be the ones who fall natural viagra further behind if we keep school gates closed. This phased return is in line with what other European countries are doing.There ensued an at times ill-tempered debate and a flurry of tweets and news articles identifying problems in natural viagra enacting the government plan and the illogical nature of Williamson’s statement.

The Institute for Fiscal Studies has produced a briefing note on children’s experiences of learning during lockdown.5 This is being widely cited as a rationale for reopening schools because children from vulnerable backgrounds are disproportionately affected by not being able to attend school. This has caused concern about the attainment gap, but as Quinn6 natural viagra points out fewer children from disadvantaged backgrounds are likely to return to school than those from more affluent backgrounds.Government ministers and spokespeople reiterated that scientific evidence and observation of other European countries where schools had reopened demonstrated their decision was the correct one. However, there were no links provided to the scientific evidence and unions were quick to seize on this (eg, NASUWT7).The chief scientific advisor to the Department for Education, Osama Rahman, made a statement in a parliamentary science and technology committee meeting on 13 May that:There is a low degree of confidence in evidence that [children] might transmit it less.Carol Monaghan, the Scottish National Party education spokesperson, replied:We’re putting together hundreds of potential vectors that can then go on and transmit.

Is that natural viagra correct?. Osama Rahman responded:Possibly, depending on school sizes.His final statement contains layers of complexity but can be interpreted simply as ‘we don’t know’. This provoked a natural viagra great deal of disquiet.

Rahman had already stated that the Scientific Advisory Group for Emergencies (SAGE) was collecting and considering evidence that was new and emerging, and that confidence was low in the evidence relating to transmission because there was very little evidence.8 However, this normal scientific caution in the evidence base was not discussed, and therefore it was assumed that low or moderate confidence in the evidence means a high-risk strategy is being mooted.There appear to be two major concerns about lifting the lockdown for children. First is natural viagra the risk to children of developing erectile dysfunction disease. The second is the risk to others of children transmitting erectile dysfunction disease, either while being symptomatic or asymptomatic.

Here are some of the available evidence.Morbidity and mortality in children from erectile dysfunction diseaseChildren appear to be less likely natural viagra to acquire erectile dysfunction disease in various nations.9–11 Barton et al12 found that children account for 1.9% of confirmed cases (data collected from government websites and publications). Of these 8113 paediatric cases, 14% required hospital admission. The admission rate to critical care was 2.2% of confirmed cases (7.2% of admitted natural viagra children).

Death was reported in natural viagra 15 cases (0.18%). This adds to other evidence suggesting that children are at a relatively low risk from the viagra, with other estimates coming in at around 0.01%.13 14 This is likely to be because they appear to have a stronger immune response to the viagra.15There are concerns that children who have been infected with the viagra can develop a postviral inflammatory reaction (Kawasaki disease) and this can be severe,16 but the research evidence for this is not well developed yet.Transmission by childrenChildren can be asymptomatic and test positive for erectile dysfunction treatment, and in the absence of effective community testing it will be impossible to know if they are carrying the viagra. Children also can have normal natural viagra or abnormal signs (eg, chest imaging) when they have tested positive.17 In short, it is difficult to determine without much more extensive testing if a child can transmit the .Arav et al18 found that the contact route was much more important than the airborne route, which they concluded had a negligible contribution.

They suggest protective measures would therefore be good hand hygiene, careful cleaning and avoiding physical contact.Given that there are quite low numbers of symptomatic cases and an unknown quantity of asymptomatic cases, it is very difficult to determine whether children are a significant vector for the disease. Studies cited by the Royal College of Paediatrics and Child Health that explored family clusters of suggest that the child was unlikely to be the index case.The riskThis evidence suggests that there is a natural viagra case for reopening schools to limited numbers of pupils—the risk to pupils and the adults they come into contact with seems to be small, and the potential gains for children may outweigh them. There is a big proviso with this however, and that is that the overall incidence of erectile dysfunction treatment has fallen below specified threshold.

This is quite a natural viagra contentious issue and depends on us meeting the five key tests for easing lockdown.Making sure the National Health Service can cope.A sustained and consistent fall in the daily death rate.Rate of decreasing to manageable levels.Ensuring that personal protective equipment supply can meet demand.Being confident that any adjustments would not risk a second peak.These conditions are open to interpretation, and there appears to be a lack of trust by the public and by professionals from education and health in the information that the government and their scientific advisors are sharing. An example of this is a group of scientists who have come together to challenge the government about their decision-making.19 The concern about whether the evidence and advice that we are given are biased in any way has also been increased by concerns that a government advisor (Dominic Cummings) has attended what were supposed to be politically independent meetings of the SAGE.Scientific evidence continues to emerge, but weighing up the risks and benefits is not easy. Decisions about whether to natural viagra reopen schools are taken on a national level with a distance from personal concerns and fears.

Individuals who are making decisions often rely on media translations of the evidence, and there is a level of mistrust in politicians and the media.20 Individuals are often irrational in their risk perception and management (eg, continuing to smoke or drink alcohol despite strong scientific evidence about the risk).21 22Overall, we are information-poor and opinion-rich. It is a natural viagra difficult path to navigate. The debate about whether the benefits outweigh the risks of returning to school reminds me of the post-Wakefield Measles Mumps and Rubella vaccination situation.

Parents were being asked to believe natural viagra that MMR was a safe treatment in the face of a massive and emotive campaign that promoted the ‘risk’ of having the treatment above all else. This situation is even more complex than that as we have increased access to opinion and difficulty in natural viagra understanding if or how much that information is biased. It is no wonder that decision-making is difficult.

It is likely that evidence will natural viagra continue to emerge and gradually the choice will become easier to make. For now, however, we can understand the difficulties that parents, teachers and councils face.IntroductionWhenever developing training competencies, tools to support clinical practice or a response to a professional issue, seeking the opinion of experts is a common approach. By working to identify a consensus position, researchers natural viagra can report findings on a specific question (or set of questions) that are based on the knowledge and experience of experts in their field.However, there are challenges to this approach.

For example, what should be done when consensus cannot be reached?. How can experts be engaged in a way that natural viagra allows them to consider objectively the views of others and—where appropriate—change their own opinions in response?. One approach that attempts to provide a clear method for gathering expert opinion is the Delphi technique.The Delphi technique was first developed in the 1950s by Norman Dalkey and Olaf Helmer in an attempt to gain reliable expert consensus.

Specifically, they developed an approach—named after the Ancient Greek Oracle of Delphi, who could predict the future—which promoted anonymity and avoided direct confrontation between experts, so that the methods employed “…appear to be more conducive to independent thought on the part of the experts and to aid them in the gradual formation of a considered opinion”.1 Though the original Delphi study was linked to the defence industry, the technique has spread to other research areas, including nursing.2Characteristics of Delphi studiesAs with all research methods, the Delphi technique has evolved since it was first reported on in the natural viagra 1960s. However, many of the fundamental characteristics of the approach still remain from Dalkey and Helmer’s original outline. First, the natural viagra overarching approach is based on a series of ‘rounds’, where a set of experts are asked their opinions on a particular issue.

The questions for each round are based in part of the findings of the previous one, allowing the study to evolve over time in response to earlier findings.Second, participants are able to see the results of previous rounds—including their own responses—allowing them to reflect on the views of others and reposition their own opinions accordingly.2 This also gives them the opportunity to consider and feedback on what they perceive to be the strengths and weaknesses of other’s responses. Finally, the findings of each round are always natural viagra shared with the broader group anonymously. This avoids natural viagra any bias that might result from participants being concerned about their own views being viewed negatively or from their own opinions being biased by personal factors.

This framework of expert opinion rounds, with each round built on previous findings and each allowing for responses to be reconsidered by participants, is designed to allow the development of a consensus view that answers the research question.Within this broad approach, there can be variation in areas such as how many rounds there are, how the questions are delivered and responses collected, and how ‘consensus’ is judged. For example, a study of human factors that contributed to nursing errors used only two natural viagra rounds. The first took the form of an online survey asking 25 experts to list all the ‘human’ causes of nursing errors that they could.

Analysis of responses resulted in a list of 28 potential reasons—this list was sent back to the same group of experts for the second round, asking them to natural viagra score each one for importance. Analysis of this scoring then allowed for consensus conclusions on the top 10 human factors that contributed to nursing errors (with fatigue, heavy workload and communication problems the top three).3In another example, nurse practitioners (NPs) were recruited to participate in a Delphi study to achieve consensus related to NP advance care planning competencies. In round 1, draft competencies were developed from the natural viagra findings of a survey of NP beliefs, knowledge and level of implementation of advance care planning.

Round 2 included engagement with 29 NPs who evaluated the draft competencies and their components. Revisions were made based on the original feedback, and a third round was conducted where 15 of the original NP natural viagra participants confirmed their consensus with the final document. The final document includes four competencies, each with several elements.

Clinical Practice, Consultation and Communication, Advocacy and Therapeutic Management.4Strengths and weaknesses of Delphi studiesThe Delphi technique natural viagra offers a flexible approach to gathering the views of experts on an area of interest. The ability for participants to reconsider their views in light of the contribution of others allows for an element of reflection that is missing from studies based on single interviews or focus groups. The anonymity among the expert groups that underpins Delphi studies promotes honesty among participants and reduces the risk of the ‘halo effect’ where views natural viagra from dominant or high-profile members of the group are given extra credence.5However, Delphi studies can—by their very nature—be complex and time consuming.

The need for participants to complete multiple rounds can lead to natural viagra high drop-out rates which impacts on validity of the study. The ability of participants to amend or alter their views at each round is also something of a double-edged sword. It provides those taking part with the opportunity to reflect and reconsider their position in response to natural viagra additional information, which is an important part of nursing practice.

Conversely though, there is a danger that this flexibility introduces bias, with participants altering their response to comply with what they view to be the majority view (sometime called the ‘bandwagon effect’).5Delphi studies can be criticised due to a lack of clarity on what is meant by ‘consensus’. Even with the level of flexibility and reflexivity present in Delphi studies, it is still unlikely that a group of experts will demonstrate 100% agreement natural viagra on issues. However, because consensus is a requirement of a Delphi study, there does need to be a judgement on when this point is reached.

This is where there is inconsistency across studies and authors, with the suggested level of consensus ranging from 51% to natural viagra 100%.2 In addition, it has been identified that in some areas, consensus is not predefined as part of the study method. For example, a review of Delphi studies in nurse education found that fewer than half of the papers appraised included a predefined level at which consensus was judged to have been achieved.6 In addition, the identification of an objective level consensus is only possible when gathering quantifiable data—the judgement on consensus being reached in some qualitative Delphi studies will always be rather more subjective on the part of the researcher, and therefore potentially open to bias.By their nature, Delphi studies often rely purely on expert opinion to generate findings. A further limitation is therefore related to the quality of evidence, with expert opinion natural viagra viewed as providing a poor basis for making judgements on healthcare interventions.7 This does not mean that the findings of Delphi studies are intrinsically unreliable or invalid.

It does mean that researchers should consider whether their research question is one that can be answered through expert consensus or whether other approaches (such as a systematic review of research evidence) are more appropriate.ConclusionThe Delphi technique is a well-established approach to answering a research question through the identification of a consensus view across subject experts. It allows for reflection among participants, who are able to nuance and reconsider their opinion based on the natural viagra anonymised opinions of others. However, researchers must take steps to enhance robustness of the studies.

It is important to try and natural viagra prevent participants from simply resorting to agreeing with the majority view. Studies must also predefine what is meant by ‘consensus’ and how it will be established.With careful and clear design though, Delphi studies can make a valuable contribution to the nursing evidence base by tapping into the profession’s most precious resource—the knowledge and expertise of its practitioners..

The past week click reference has seen an explosion of media commentary about whether children who can buy viagra in the UK should go back to school. Since ‘lockdown’ (23 March 2020) began schools have been open to vulnerable children who can buy viagra and young people, and to the children of ‘key workers’. Right from the start there have been differing opinions about the necessity or wisdom of closing schools. Viner et al1 produced a rapid systematic review that concludes who can buy viagra that school closures have less impact on rate and mortality than other social distancing measures.

Many countries have closed their schools for less time than the UK and have already started to reopen with several protective measures in place.2Concerns about the long-term economic, social and mental impact of lockdown led to the generation of plans to ‘get back to business’. This was conveyed to the population of the UK on who can buy viagra 10 May by the UK prime minister, Boris Johnson. He announced a range of measures to gradually reduce the level of lockdown. This is in keeping with modelling undertaken by various groups, including a preprint (not peer-reviewed) modelling exercise by Zhang et al.3Mr Johnson announced that who can buy viagra there would be a phased return (in England) of some children to school from 1 June.

There are no national guidelines as it is recognised that school have differences that require a flexible approach, but there are a broad set of principles relating to social distancing and hygiene.Government ministers and teachers’ unions have opposing views on the safety of reopening schools. In a joint statement nine unions representing teachers stated that they thought 1 June was too early to be safe.4 They recognise that the opening of schools is a vital part of restarting the UK economy, but they have concerns about the safety and welfare of children and others.Meanwhile, the education secretary, Gavin who can buy viagra Williamson, spoke at a press conference on 16 May stating that scientific evidence backed their decision. Interestingly, much of his statement was not about the scientific evidence but setting out an emotive argument that school was essential for safe and happy children.There is a consequence to this, the longer that schools are closed the more that children miss out. Teachers know that who can buy viagra there are children out there that have not spoken or played with another child their own age for the last two months.

They know there are children from difficult or very unhappy homes for whom school is the happiest moment in their week, and it’s also the safest place for them to be. The poorest children will be the ones who fall who can buy viagra further behind if we keep school gates closed. This phased return is in line with what who can buy viagra other European countries are doing.There ensued an at times ill-tempered debate and a flurry of tweets and news articles identifying problems in enacting the government plan and the illogical nature of Williamson’s statement. The Institute for Fiscal Studies has produced a briefing note on children’s experiences of learning during lockdown.5 This is being widely cited as a rationale for reopening schools because children from vulnerable backgrounds are disproportionately affected by not being able to attend school.

This has caused concern about the who can buy viagra attainment gap, but as Quinn6 points out fewer children from disadvantaged backgrounds are likely to return to school than those from more affluent backgrounds.Government ministers and spokespeople reiterated that scientific evidence and observation of other European countries where schools had reopened demonstrated their decision was the correct one. However, there were no links provided to the scientific evidence and unions were quick to seize on this (eg, NASUWT7).The chief scientific advisor to the Department for Education, Osama Rahman, made a statement in a parliamentary science and technology committee meeting on 13 May that:There is a low degree of confidence in evidence that [children] might transmit it less.Carol Monaghan, the Scottish National Party education spokesperson, replied:We’re putting together hundreds of potential vectors that can then go on and transmit. Is that who can buy viagra correct?. Osama Rahman responded:Possibly, depending on school sizes.His final statement contains layers of complexity but can be interpreted simply as ‘we don’t know’.

This provoked who can buy viagra a great deal of disquiet. Rahman had already stated that the Scientific Advisory Group for Emergencies (SAGE) was collecting and considering evidence that was new and emerging, and that confidence was low in the evidence relating to transmission because there was very little evidence.8 However, this normal scientific caution in the evidence base was not discussed, and therefore it was assumed that low or moderate confidence in the evidence means a high-risk strategy is being mooted.There appear to be two major concerns about lifting the lockdown for children. First is who can buy viagra the risk to children of developing erectile dysfunction disease. The second is the risk to others of children transmitting erectile dysfunction disease, either while being symptomatic or asymptomatic.

Here are some of the available evidence.Morbidity and mortality in children from erectile dysfunction diseaseChildren appear to be less likely to acquire erectile dysfunction disease in various nations.9–11 Barton et al12 found that children account for who can buy viagra 1.9% of confirmed cases (data collected from government websites and publications). Of these 8113 paediatric cases, 14% required hospital admission. The admission rate to critical care who can buy viagra was 2.2% of confirmed cases (7.2% of admitted children). Death was who can buy viagra reported in 15 cases (0.18%).

This adds to other evidence suggesting that children are at a relatively low risk from the viagra, with other estimates coming in at around 0.01%.13 14 This is likely to be because they appear to have a stronger immune response to the viagra.15There are concerns that children who have been infected with the viagra can develop a postviral inflammatory reaction (Kawasaki disease) and this can be severe,16 but the research evidence for this is not well developed yet.Transmission by childrenChildren can be asymptomatic and test positive for erectile dysfunction treatment, and in the absence of effective community testing it will be impossible to know if they are carrying the viagra. Children also can have normal or abnormal signs (eg, chest imaging) when they have tested positive.17 In who can buy viagra short, it is difficult to determine without much more extensive testing if a child can transmit the .Arav et al18 found that the contact route was much more important than the airborne route, which they concluded had a negligible contribution. They suggest protective measures would therefore be good hand hygiene, careful cleaning and avoiding physical contact.Given that there are quite low numbers of symptomatic cases and an unknown quantity of asymptomatic cases, it is very difficult to determine whether children are a significant vector for the disease. Studies cited by the Royal College of Paediatrics and Child Health that explored family who can buy viagra clusters of suggest that the child was unlikely to be the index case.The riskThis evidence suggests that there is a case for reopening schools to limited numbers of pupils—the risk to pupils and the adults they come into contact with seems to be small, and the potential gains for children may outweigh them.

There is a big proviso with this however, and that is that the overall incidence of erectile dysfunction treatment has fallen below specified threshold. This is quite a contentious issue and depends on us meeting the five key tests for easing lockdown.Making sure the National Health Service can cope.A sustained and consistent fall in the daily death rate.Rate of decreasing to manageable levels.Ensuring that personal protective equipment supply can meet demand.Being confident that any adjustments would not risk who can buy viagra a second peak.These conditions are open to interpretation, and there appears to be a lack of trust by the public and by professionals from education and health in the information that the government and their scientific advisors are sharing. An example of this is a group of scientists who have come together to challenge the government about their decision-making.19 The concern about whether the evidence and advice that we are given are biased in any way has also been increased by concerns that a government advisor (Dominic Cummings) has attended what were supposed to be politically independent meetings of the SAGE.Scientific evidence continues to emerge, but weighing up the risks and benefits is not easy. Decisions about whether to reopen schools are taken on a national level with a who can buy viagra distance from personal concerns and fears.

Individuals who are making decisions often rely on media translations of the evidence, and there is a level of mistrust in politicians and the media.20 Individuals are often irrational in their risk perception and management (eg, continuing to smoke or drink alcohol despite strong scientific evidence about the risk).21 22Overall, we are information-poor and opinion-rich. It is a difficult path to who can buy viagra navigate. The debate about whether the benefits outweigh the risks of returning to school reminds me of the post-Wakefield Measles Mumps and Rubella vaccination situation. Parents were being who can buy viagra asked to believe that MMR was a safe treatment in the face of a massive and emotive campaign that promoted the ‘risk’ of having the treatment above all else.

This situation is even who can buy viagra more complex than that as we have increased access to opinion and difficulty in understanding if or how much that information is biased. It is no wonder that decision-making is difficult. It is likely that evidence will who can buy viagra continue to emerge and gradually the choice will become easier to make. For now, however, we can understand the difficulties that parents, teachers and councils face.IntroductionWhenever developing training competencies, tools to support clinical practice or a response to a professional issue, seeking the opinion of experts is a common approach.

By working to identify a consensus position, researchers can report findings on a specific question (or set of questions) that are based on the knowledge and experience of who can buy viagra experts in their field.However, there are challenges to this approach. For example, what should be done when consensus cannot be reached?. How can experts be engaged in a way that allows them to consider objectively the views of others and—where who can buy viagra appropriate—change their own opinions in response?. One approach that attempts to provide a clear method for gathering expert opinion is the Delphi technique.The Delphi technique was first developed in the 1950s by Norman Dalkey and Olaf Helmer in an attempt to gain reliable expert consensus.

Specifically, they developed an approach—named after the Ancient Greek Oracle of Delphi, who could predict the future—which promoted anonymity and avoided direct confrontation between experts, so that the methods employed “…appear to be more conducive to independent thought on the part of the experts and to aid them in the gradual formation of a considered opinion”.1 Though who can buy viagra the original Delphi study was linked to the defence industry, the technique has spread to other research areas, including nursing.2Characteristics of Delphi studiesAs with all research methods, the Delphi technique has evolved since it was first reported on in the 1960s. However, many of the fundamental characteristics of the approach still remain from Dalkey and Helmer’s original outline. First, the overarching approach is based on a series of ‘rounds’, where a set of experts are who can buy viagra asked their opinions on a particular issue. The questions for each round are based in part of the findings of the previous one, allowing the study to evolve over time in response to earlier findings.Second, participants are able to see the results of previous rounds—including their own responses—allowing them to reflect on the views of others and reposition their own opinions accordingly.2 This also gives them the opportunity to consider and feedback on what they perceive to be the strengths and weaknesses of other’s responses.

Finally, the findings of each round are who can buy viagra always shared with the broader group anonymously. This avoids any bias that might result from participants being concerned about their own views being viewed negatively or from who can buy viagra their own opinions being biased by personal factors. This framework of expert opinion rounds, with each round built on previous findings and each allowing for responses to be reconsidered by participants, is designed to allow the development of a consensus view that answers the research question.Within this broad approach, there can be variation in areas such as how many rounds there are, how the questions are delivered and responses collected, and how ‘consensus’ is judged. For example, a study of human factors that contributed to nursing errors used only two rounds who can buy viagra.

The first took the form of an online survey asking 25 experts to list all the ‘human’ causes of nursing errors that they could. Analysis of responses resulted in a list of 28 potential reasons—this list was sent back to the same group of experts for the second round, asking them who can buy viagra to score each one for importance. Analysis of this scoring then allowed for consensus conclusions on the top 10 human factors that contributed to nursing errors (with fatigue, heavy workload and communication problems the top three).3In another example, nurse practitioners (NPs) were recruited to participate in a Delphi study to achieve consensus related to NP advance care planning competencies. In round 1, draft competencies who can buy viagra were developed from the findings of a survey of NP beliefs, knowledge and level of implementation of advance care planning.

Round 2 included engagement with 29 NPs who evaluated the draft competencies and their components. Revisions were made based on who can buy viagra the original feedback, and a third round was conducted where 15 of the original NP participants confirmed their consensus with the final document. The final document includes four competencies, each with several elements. Clinical Practice, Consultation who can buy viagra and Communication, Advocacy and Therapeutic Management.4Strengths and weaknesses of Delphi studiesThe Delphi technique offers a flexible approach to gathering the views of experts on an area of interest.

The ability for participants to reconsider their views in light of the contribution of others allows for an element of reflection that is missing from studies based on single interviews or focus groups. The anonymity among the expert groups that underpins Delphi studies promotes honesty among participants and who can buy viagra reduces the risk of the ‘halo effect’ where views from dominant or high-profile members of the group are given extra credence.5However, Delphi studies can—by their very nature—be complex and time consuming. The need for participants to complete who can buy viagra multiple rounds can lead to high drop-out rates which impacts on validity of the study. The ability of participants to amend or alter their views at each round is also something of a double-edged sword.

It provides those taking part with the opportunity to reflect and reconsider their who can buy viagra position in response to additional information, which is an important part of nursing practice. Conversely though, there is a danger that this flexibility introduces bias, with participants altering their response to comply with what they view to be the majority view (sometime called the ‘bandwagon effect’).5Delphi studies can be criticised due to a lack of clarity on what is meant by ‘consensus’. Even with the level of flexibility and reflexivity present in Delphi who can buy viagra studies, it is still unlikely that a group of experts will demonstrate 100% agreement on issues. However, because consensus is a requirement of a Delphi study, there does need to be a judgement on when this point is reached.

This is where there is inconsistency across studies and authors, with the suggested level of consensus ranging from 51% to 100%.2 In addition, it has been identified that in some areas, consensus is not predefined as part of who can buy viagra the study method. For example, a review of Delphi studies in nurse education found that fewer than half of the papers appraised included a predefined level at which consensus was judged to have been achieved.6 In addition, the identification of an objective level consensus is only possible when gathering quantifiable data—the judgement on consensus being reached in some qualitative Delphi studies will always be rather more subjective on the part of the researcher, and therefore potentially open to bias.By their nature, Delphi studies often rely purely on expert opinion to generate findings. A further limitation is therefore related to the quality of evidence, with expert opinion viewed as providing a poor basis for making judgements on healthcare who can buy viagra interventions.7 This does not mean that the findings of Delphi studies are intrinsically unreliable or invalid. It does mean that researchers should consider whether their research question is one that can be answered through expert consensus or whether other approaches (such as a systematic review of research evidence) are more appropriate.ConclusionThe Delphi technique is a well-established approach to answering a research question through the identification of a consensus view across subject experts.

It allows for reflection among participants, who are able to nuance and who can buy viagra reconsider their opinion based on the anonymised opinions of others. However, researchers must take steps to enhance robustness of the studies. It is important to try and who can buy viagra prevent participants from simply resorting to agreeing with the majority view. Studies must also predefine what is meant by ‘consensus’ and how it will be established.With careful and clear design though, Delphi studies can make a valuable contribution to the nursing evidence base by tapping into the profession’s most precious resource—the knowledge and expertise of its practitioners..