Testin G Tr E a Tm E N Ts
Total Page:16
File Type:pdf, Size:1020Kb

Load more
Recommended publications
-
What Statistics Can and Can't Tell Us About Ourselves | the New Yorker
What Statistics Can and Canʼt Tell Us About Ourselves | The New Yorker 2019-09-04, 1005 Books September 9, 2019 Issue What Statistics Can and Can’t Tell Us About Ourselves In the era of Big Data, we’ve come to believe that, with enough information, human behavior is predictable. But number crunching can lead us perilously wrong. By Hannah Fry September 2, 2019 https://www.newyorker.com/magazine/2019/09/09/what-statistics…3&utm_medium=email&utm_term=0_c9dfd39373-f791742ba3-42227231 Page 1 of 15 What Statistics Can and Canʼt Tell Us About Ourselves | The New Yorker 2019-09-04, 1005 Making individual predictions from collective characteristics is a risky business. Illustration by Ben Wiseman 0"00 / 23"27 Audio: Listen to this article. To hear more, download Audm for iPhone or Android. arold Eddleston, a seventy-seven-year-old from Greater Manchester, H was still reeling from a cancer diagnosis he had been given that week https://www.newyorker.com/magazine/2019/09/09/what-statistics…3&utm_medium=email&utm_term=0_c9dfd39373-f791742ba3-42227231 Page 2 of 15 What Statistics Can and Canʼt Tell Us About Ourselves | The New Yorker 2019-09-04, 1005 when, on a Saturday morning in February, 1998, he received the worst possible news. He would have to face the future alone: his beloved wife had died unexpectedly, from a heart attack. Eddleston’s daughter, concerned for his health, called their family doctor, a well-respected local man named Harold Shipman. He came to the house, sat with her father, held his hand, and spoke to him tenderly. -
Note for the Record: Consultation on Clinical Trial Design for Ebola Virus Disease (EVD)
Note for the record: Consultation on Clinical Trial Design for Ebola Virus Disease (EVD) A group of independent scientific experts was convened by the WHO for the purpose of evaluating a proposed clinical trial design for investigational therapeutics for Ebola virus disease (EVD) during the current outbreak, 26 May 2018 Experts Sir Michael Jacobs (Chair), Dr Rick Bright, Dr Marco Cavaleri, Dr Edward Cox, Dr Natalie Dean, Dr William Fischer, Dr Thomas Fleming, Dr Elizabeth Higgs, Dr Peter Horby, Dr Philip Krause, Dr Trudie Lang, Dr Denis Malvy, Sir Richard Peto, Dr Peter Smith, Dr Marianne Van der Sande, Dr Robert Walker, Dr David Wohl, Dr Alan Young. There are many pathogens for which there is no proven specific treatment. For some pathogens, there are treatments that have shown promising safety and activity in the laboratory and in relevant animal models but have not yet been evaluated fully for safety and efficacy in humans. In the context of an outbreak characterized by high mortality rates, the Monitored Emergency Use of Unregistered Interventions (MEURI)1 framework is a means to provide access to promising but unproven investigational therapies, but is not a means to evaluate reliably whether these compounds are actually beneficial to patients or not. In light of the current Ebola Zaire DRC outbreak with a high case fatality rate, the WHO convened an independent expert panel to evaluate investigational therapeutics for MEURI use2, and that panel affirmed the importance of moving to appropriate clinical trials as soon as possible. Against this background, a clinical trial design has been proposed with a view to generating reliable evidence about safety and efficacy. -
Cebm-Levels-Of-Evidence-Background-Document-2-1.Pdf
Background document Explanation of the 2011 Oxford Centre for Evidence-Based Medicine (OCEBM) Levels of Evidence Introduction The OCEBM Levels of Evidence was designed so that in addition to traditional critical appraisal, it can be used as a heuristic that clinicians and patients can use to answer clinical questions quickly and without resorting to pre-appraised sources. Heuristics are essentially rules of thumb that helps us make a decision in real environments, and are often as accurate as a more complicated decision process. A distinguishing feature is that the Levels cover the entire range of clinical questions, in the order (from top row to bottom row) that the clinician requires. While most ranking schemes consider strength of evidence for therapeutic effects and harms, the OCEBM system allows clinicians and patients to appraise evidence for prevalence, accuracy of diagnostic tests, prognosis, therapeutic effects, rare harms, common harms, and usefulness of (early) screening. Pre-appraised sources such as the Trip Database (1), (2), or REHAB+ (3) are useful because people who have the time and expertise to conduct systematic reviews of all the evidence design them. At the same time, clinicians, patients, and others may wish to keep some of the power over critical appraisal in their own hands. History Evidence ranking schemes have been used, and criticised, for decades (4-7), and each scheme is geared to answer different questions(8). Early evidence hierarchies(5, 6, 9) were introduced primarily to help clinicians and other researchers appraise the quality of evidence for therapeutic effects, while more recent attempts to assign levels to evidence have been designed to help systematic reviewers(8), or guideline developers(10). -
A Critical Examination of the Idea of Evidence‑Based Policymaking
A critical examination of the idea of evidence‑based policymaking KARI PAHLMAN Abstract Since the election of the Labour Government in the United Kingdom in the 1990s on the platform of ‘what matters is what works’, the notion that policy should be evidence-based has gained significant popularity. While in theory, no one would suggest that policy should be based on anything other than robust evidence, this paper critically examines this concept of evidence-based policymaking, exploring the various complexities within it. Specifically, it questions the political nature of policymaking, the idea of what actually counts as evidence, and highlights the way that evidence can be selectively framed to promote a particular agenda. This paper examines evidence-based policy within the realm of Indigenous policymaking in Australia. It concludes that the practice of evidence-based policymaking is not necessarily a guarantee of more robust, effective or successful policy, highlighting implications for future policymaking. Since the 1990s, there has been increasing concern for policymaking to be based on evidence, rather than political ideology or ‘program inertia’ (Nutley et al. 2009, pp. 1, 4; Cherney & Head 2010, p. 510; Lin & Gibson 2003, p. xvii; Kavanagh et al. 2003, p. 70). Evolving from the practice of evidence-based medicine, evidence-based policymaking has recently gained significant popularity, particularly in the social services sectors (Lin & Gibson 2003, p. xvii; Marston & Watts 2003, p. 147; Nutley et al. 2009, p. 4). It has been said that nowadays, ‘evidence is as necessary to political conviction as it is to criminal conviction’ (Solesbury 2001, p. 4). This paper will critically examine the idea of evidence-based policymaking, concluding that while research and evidence should necessarily be a part of the policymaking process and can be an important component to ensuring policy success, there are nevertheless significant complexities. -
Sir Richard Doll, Epidemiologist – a Personal Reminiscence with a Selected Bibliography
British Journal of Cancer (2005) 93, 963 – 966 & 2005 Cancer Research UK All rights reserved 0007 – 0920/05 $30.00 www.bjcancer.com Obituary Sir Richard Doll, epidemiologist – a personal reminiscence with a selected bibliography The death of Richard Doll on 24 July 2005 at the age of 92 after a short illness ended an extraordinarily productive life in science for which he received widespread recognition, including Fellowship of The Royal Society (1966), Knighthood (1971), Companionship of Honour (1996), and many honorary degrees and prizes. He is unique, however, in having seen both universal acceptance of his work demonstrating smoking as the main cause of the most common fatal cancer in the world and the relative success of strategies to reduce the prevalence of the habit. In 1950, 80% of the men in Britain smoked but this has now declined to less than 30%. Richard Doll qualified in medicine at St Thomas’ Hospital in 1937, but his epidemiological career began after service in the Second World War when he worked with Francis Avery Jones at the Central Middlesex Hospital on occupational factors in the aetiology of peptic ulceration. The completeness of Doll’s tracing of previously surveyed men so impressed Tony Bradford Hill that he offered him a post in the MRC Statistical Research Unit to investigate the causes of lung cancer. For the representations of Percy Stocks (Chief Medical Officer to the Registrar General) and Sir Ernest Kennaway had prevailed against the then commonly held view that the marked rise in lung cancer deaths in Britain since 1900 was due only to improved diagnosis. -
Whoseжlegacyжwillжreadersж Celebrateжthisжyear?
BMJ GROUP AWARDS •ЖReviewЖtheЖshortlistsЖforЖallЖcategoriesЖatЖhttp://bit.ly/aUWoE5 Sir George Alleyne •ЖListenЖtoЖtheЖawardsЖlaunchЖpodcastЖatЖbmj.com/podcasts A highly respected figure in global health, George Alleyne has played LIFETIME ACHIEVEMENT AWARD a large part in tackling HIV and non-communicable disease and WhoseЖlegacyЖwillЖreadersЖ is an energetic promoter of health equality across the world. Currently the chancellor of the University celebrateЖthisЖyear? of the West Indies, Sir George is also the former director of the Pan Annabel FerrimanЖintroducesЖthisЖyear’sЖawardЖandЖ American Health Organization. Adrian O’DowdЖrevealsЖtheЖshortlistedЖcandidates Born in Barbados, he graduated in medicine from the University When Belgian senator Marleen Temmerman called on women in Belgium of the West Indies in 1957 and to refuse to have sex with their partners until the country’s politicians continued his postgraduate ended eight months of wrangling and formed a government, few people studies in the United Kingdom and effect on national economies. in the UK had heard of her. But readers of the BMJ were in the know and the United States. During more Sir George has served on various unsurprised. than a decade of original research, committees including the For Professor Temmerman, an obstetrician and gynaecologist, had he produced 144 publications in scientific and technical advisory won the BMJ Group’s Lifetime Achievement Award last April. In that case, scientific journals, which qualified committee of the World Health it was not for suggesting a “crossed leg strike” to end political deadlock him at just 40 years of age to be Organization Tropical Research (a solution advocated by the women of Greece in Aristophanes’ play appointed professor of medicine Programme and the Institute of Lysistrata) but for her services to women’s health in Belgium and Kenya. -
Margaret Mccartney: the Social Care System Has Become Inherently Unsafe
BMJ 2017;357:j2329 doi: 10.1136/bmj.j2329 (Published 2017 May 30) Page 1 of 2 Views and Reviews BMJ: first published as 10.1136/bmj.j2329 on 30 May 2017. Downloaded from VIEWS AND REVIEWS NO HOLDS BARRED Margaret McCartney: The social care system has become inherently unsafe Margaret McCartney general practitioner Glasgow Ellen Ash was an elderly woman with severe dementia, who with many time consuming assessments. The community team lived in Glasgow. She died in 2013 after she was smothered is dissolving, and our district nurses no longer work, long term, and her house was set on fire. Her son, Jeffrey, went to the police from the practice as part of our team but “horizontally,” across the next day to confess to both.1 He was her carer and seems to many. have been under immense stress. This may be “agile,” but it loses the longer term, soft knowledge Social care is under intense pressure but also scrutiny. Over the on which harder decisions are based. No basic record exists past few months this complex case has been discussed at wide between district nurses and GPs, social work, and care agencies http://www.bmj.com/ ranging, interdisciplinary meetings involving health and social to say who’s involved. I can alert social workers to concerns, care staff. In Scotland, social and health care are integrated in but what then? Everyone is working over capacity, in workplaces law. But in practice? not designed to ensure that professionals have the minimum In the months before her death Ash was admitted to hospital information to do the job safely. -
Covid-19: People Are Not Being Warned About Pitfalls of Mass Testing
NEWS BMJ: first published as 10.1136/bmj.n238 on 26 January 2021. Downloaded from The BMJ EXCLUSIVE Cite this as: BMJ 2021;372:n238 http://dx.doi.org/10.1136/bmj.n238 Published: 26 January 2021 Covid-19: People are not being warned about pitfalls of mass testing Elisabeth Mahase Only a third of local authorities that are rolling out local authorities in communicating such public health lateral flow testing have made the test’s limitations messages. clear to the public—including that it does not pick However, Mike Gill, former regional director of public up all cases and that people testing negative could health for the South East region, highlighted that the still be infected, an investigation by The BMJ has government’s community testing guidance4 for local found. authorities did not make the limitations clear. A search of the websites of the 114 local authorities He said, “It is absolutely appropriate that local rolling out lateral flow testing1 found that 81 provided authorities shape the messaging surrounding testing information for the public on rapid covid-19 testing. to suit local circumstances and cultural groups, but Of these, nearly half (47%; 38) did not explain the all messaging should fulfil basic minimum standards. limitations of the tests or make it clear that people needed to continue following the restrictions or safety “Unfortunately, this range of approaches across the measures even if they tested negative, as they could country is predictable. The recently published still be infected. government guide to community testing,4 for all its length, is entirely silent on the issue of standards of Although 53% (43) did advise people to continue to messaging. -
The Opportunities and Challenges of Pragmatic Point-Of-Care Randomised Trials Using Routinely Collected Electronic Records: Evaluations of Two Exemplar Trials
HEALTH TECHNOLOGY ASSESSMENT VOLUME 18 ISSUE 43 JULY 2014 ISSN 1366-5278 The opportunities and challenges of pragmatic point-of-care randomised trials using routinely collected electronic records: evaluations of two exemplar trials Tjeerd-Pieter van Staa, Lisa Dyson, Gerard McCann, Shivani Padmanabhan, Rabah Belatri, Ben Goldacre, Jackie Cassell, Munir Pirmohamed, David Torgerson, Sarah Ronaldson, Joy Adamson, Adel Taweel, Brendan Delaney, Samhar Mahmood, Simona Baracaia, Thomas Round, Robin Fox, Tommy Hunter, Martin Gulliford and Liam Smeeth DOI 10.3310/hta18430 The opportunities and challenges of pragmatic point-of-care randomised trials using routinely collected electronic records: evaluations of two exemplar trials Tjeerd-Pieter van Staa,1,2* Lisa Dyson,3 Gerard McCann,4 Shivani Padmanabhan,4 Rabah Belatri,4 Ben Goldacre,1 Jackie Cassell,5 Munir Pirmohamed,6 David Torgerson,3 Sarah Ronaldson,3 Joy Adamson,3 Adel Taweel,7 Brendan Delaney,7 Samhar Mahmood,7 Simona Baracaia,7 Thomas Round,7 Robin Fox,8 Tommy Hunter,9 Martin Gulliford10 and Liam Smeeth1 1Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK 2Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands 3York Trials Unit, York University, York, UK 4Clinical Practice Research Datalink, Medicines and Healthcare products Regulatory Agency, London, UK 5Division of Primary Care and Public Health, Brighton and Sussex Medical School, University of Brighton, Brighton, UK 6The Wolfson Centre for -
Joint Meeting of the All-Party Parliamentary Group for First Do No Harm and the British Medical Journal
Joint meeting of the All-Party Parliamentary Group for First Do No Harm and the British Medical Journal Venue and time 10:00am, Friday 21st May 2021 Via Zoom virtual conferencing Parliamentarians attending • Baroness Cumberlege, Co-Chair • Emma Hardy MP, Vice-Chair Panellists • Fiona Godlee, Editor-In-Chief, British Medical Journal • Kath Sansom, Sling the Mesh • Margaret McCartney, general practitioner, writer and broadcaster • Professor Neil Mortensen, President, Royal College of Surgeons • Professor Colin Melville, Medical Director and Director of Education and Standards, General Medical Council • Sir Cyril Chantler, Vice-Chair of the IMMDS Review Additional guests • Simon Whale, panel member, IMMDS Review • Dr Sonia Macleod, senior researcher to the IMMDS Review • Dr Chris van Tulleken, Infectious disease doctor, broadcaster and academic • Rebecca Coombes, Head of Journalism, British Medical Journal Apologies • The Rt Hon Jeremy Hunt MP, Co-Chair • Cat Smith MP, Vice-Chair • Dr Valerie Brasse, Secretary to the IMMDS Review Introduction Baroness Cumberlege began by welcoming fellow parliamentarians, patient group campaigners, her fellow panellists, members of the media and other attendees to the launch event. She also introduced the team from the Independent Medicines and Medical Devices Safety Review, who were on-screen: 1 • Sir Cyril Chantler • Simon Whale • Dr Sonia Macleod Baroness Cumberlege provided attendees with background to the joint meeting, referencing the work of the Independent Medicines and Medical Devices Safety Review, which she Chaired, and which published its report, First Do No Harm, last July. The report stated that transparency of payments made to clinicals needs to improve and it recommended (Recommendation 8) that the register of the General Medical Council should be expanded to include a list of financial and non-pecuniary interests for all doctors, as well a specialisms. -
Health Research Policy and Systems Provided by Pubmed Central Biomed Central
View metadata, citation and similar papers at core.ac.uk brought to you by CORE Health Research Policy and Systems provided by PubMed Central BioMed Central Guide Open Access SUPPORT Tools for evidence-informed health Policymaking (STP) 17: Dealing with insufficient research evidence Andrew D Oxman*1, John N Lavis2, Atle Fretheim3 and Simon Lewin4 Address: 1Norwegian Knowledge Centre for the Health Services, P.O. Box 7004, St. Olavs plass, N-0130 Oslo, Norway, 2Centre for Health Economics and Policy Analysis, Department of Clinical Epidemiology and Biostatistics, and Department of Political Science, McMaster University, 1200 Main St. West, HSC-2D3, Hamilton, ON, Canada, L8N 3Z5, 3Norwegian Knowledge Centre for the Health Services, P.O. Box 7004, St. Olavs plass, N-0130 Oslo, Norway; Section for International Health, Institute of General Practice and Community Medicine, Faculty of Medicine, University of Oslo, Norway and 4Norwegian Knowledge Centre for the Health Services, P.O. Box 7004, St. Olavs plass, N-0130 Oslo, Norway; Health Systems Research Unit, Medical Research Council of South Africa Email: Andrew D Oxman* - [email protected]; John N Lavis - [email protected]; Atle Fretheim - [email protected]; Simon Lewin - [email protected] * Corresponding author Published: 16 December 2009 <supplement>byof thethe fundersEuropean had<title> Commission's a role <p>SUPPORT in drafting, 6th Framework revising Tools for or evidence-informedINCOapproving programme, the content health contract of thisPolicymaking 031939. series.</note> The (STP)</p> Norwegian </sponsor> </title> Agency <note>Guides</note> <editor>Andy for Development Oxman Cooperation<url>http://www.biomedcentral.com/content/pdf/1478-4505-7-S1-info.pdf</url> and Stephan (N Hanney</editor>orad), the Alliance <sponsor> for Health <note>This Policy and seriesSystems of articlesResearch, was and prepared the </supplement> Milbank as part Memorial of the SUPPORT Fund provided project, additional which wasfunding. -
Homeopathy Works, Then Obviously the Less You Use It, the Stronger It Gets
http://www.physics.smu.edu/pseudo "...for the purposes of popular discourse, it is not necessary for homeopaths to prove their case. It is merely necessary for them to create walls of obfuscation, and superficially plausible technical documents that support their case, in order to keep the dream alive in the imaginations of both the media and their defenders." --Ben Goldacre If homeopathy works, then obviously the less you use it, the stronger it gets. So the best way to apply homeopathy is to not use it at all. --Phil Plait http://www.physics.smu.edu/pseudo “Alternative Medicine” - Homeopathy - Supplementary Material for CFB3333/PHY3333 Professors John Cotton, Randy Scalise, and Stephen Sekula http://www.physics.smu.edu/pseudo ● FRINGE ● The land of wild ideas, mostly untested or untestable. Most of these will be discarded as useless. Only some of these will make it into the frontier. ● FRONTIER ● CORE Tested (somewhat or better) ideas that could still be wrong or require significant modification. ● CORE FRONTIER ● Very well-tested ideas that are unlikely to be overturned. They may FRINGE become parts of bigger ideas, but are very unlikely to be discarded. A Depiction of Science Thanks to Eugenie Scott http://www.physics.smu.edu/pseudo HOMEOPATHY A LOOK AT THE SCIENTIFIC EVIDENCE http://www.physics.smu.edu/pseudo Claim and Assessment ● Claim: homeopathic medicine can treat the diseases it claims to treat ● there are many more medicines than there have been scientific tests of those medicines, which should already tell you something. Homeopathy is like a hydra. ● Tests: ● Gold-standard medical testing: randomized, double/single-blinded, placebo-controlled, large-statistics trials http://www.physics.smu.edu/pseudo http://www.physics.smu.edu/pseudo ● Findings: ● 8 studies in the review fulfilled their review criteria ● Only about half of those were more akin to gold standard, and they tended to show no effect over placebo.