{"id":31251,"date":"2014-03-19T17:51:10","date_gmt":"2014-03-19T16:51:10","guid":{"rendered":"https:\/\/blogs.bmj.com\/bmj\/?p=31251"},"modified":"2014-07-28T16:34:20","modified_gmt":"2014-07-28T15:34:20","slug":"neal-maskrey-where-is-the-evidence-for-evidence-based-medicine","status":"publish","type":"post","link":"https:\/\/blogs.bmj.com\/bmj\/2014\/03\/19\/neal-maskrey-where-is-the-evidence-for-evidence-based-medicine\/","title":{"rendered":"Neal Maskrey: Where is the evidence for evidence based medicine?"},"content":{"rendered":"<p><a href=\"https:\/\/blogs.bmj.com\/bmj\/files\/2014\/03\/neil_maskrey.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-thumbnail wp-image-31253\" src=\"https:\/\/blogs.bmj.com\/bmj\/files\/2014\/03\/neil_maskrey-150x110.jpg\" alt=\"neil_maskrey\" width=\"150\" height=\"110\" \/><\/a>The internet was 25 years old last week. When Tim Berners-Lee was asked what has surprised him most about the internet\u2019s use he replied \u201ckittens.\u201d With respect, I disagree. The most surprising aspect of the internet is how easy it is to genuinely interact with people around the world. My e-friends might not come to sit at my sick bed and in time share my \u201c<a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC2629825\/\">dark, tender moments<\/a>,\u201d but I have e-friends with whom, thanks to Sir Tim, I freely share sadness, joy, laughter, tears\u2026\u2026and lots of ideas.<\/p>\n<p>Last week I hope I made a new e-friend. She asked where was the evidence that using evidence to practice medicine is actually beneficial. \u201cSo many medical societies have got into the guideline business.\u201d Does adherence to these guidelines really have a positive impact on healthcare?<!--more--><\/p>\n<p>What\u2019s the evidence for evidence? Good question. There are indeed <a href=\"http:\/\/thorax.bmj.com\/content\/62\/1\/85.short\">papers<\/a> describing changes in management and reductions in mortality and morbidity with guidelines. Hoped for effects with new medicines don\u2019t always materialise and <a href=\"http:\/\/www.testingtreatments.org\/tt-main-text\/\">evidence has prevented and corrected much inappropriate treatment<\/a>.<\/p>\n<p>But it&#8217;s immediately obvious that teasing out the effect of about 20 years of evidence based practice (EBP) from multiple other changes in population health and healthcare is difficult. And too often we find evidence looks great, but then discover it has been distorted, and our faith in people and systems suffers.<\/p>\n<p>It&#8217;s probably more helpful to think of EBP as a social movement. &#8220;Evidence&#8221; is now culturally part of healthcare in many parts of the world\u2014in the UK I think we often underestimate that change. You don&#8217;t see people getting antibiotics, paracetamol, and a decongestant for a cold anymore because we\u00a0unconsciously follow the evidence that they don&#8217;t do any good. We don&#8217;t measure that change and demonstrate that EBP &#8220;works.&#8221; In skilled clinicians\u2019 hands, EBP has imperceptibly become an integral and positive part of providing care.<\/p>\n<p>My other point about social movements is that there&#8217;s a moral aspect. What would you like clinicians to use in advising about the best management options? The best available scientific evidence or something else? It would be equally hard to find &#8220;evidence&#8221; that universal suffrage, freedom of the press, abolishing slavery, or teaching medical students anatomy &#8220;works&#8221; of course.<\/p>\n<p>Then there&#8217;s the problem that human beings don&#8217;t make decisions by blindly following what other people tell them. To say nothing of the impossible task of keeping up with the volume of published evidence. So new e-friend, looking for guidelines being followed isn&#8217;t the right question. The cultural influence of EBP has to be greater than a simple, linear guideline effect.<\/p>\n<p>There are richer pickings in<a href=\"http:\/\/www.sciencedirect.com\/science\/article\/pii\/S0140673699021716\"> questioning the variable quality of many guidelines<\/a>. When only 5% have a described search strategy, grade the evidence, and report the type of stakeholders (not exactly high hurdles), much of this is poor quality noise, not signals. EBP Rule #1: know how the guideline was produced.<\/p>\n<p>Evidence based practice and the internet. Both young. Both flawed. But we can\u2019t seriously imagine life without either of them.<\/p>\n<p><em>Competing interests: I declare that that I have read and understood the BMJ Group policy on declaration of interests and I hereby declare the following interests: Employed part time by the National Institute of Health and Care Excellence.<\/em><\/p>\n<p><em><strong>Neal Maskrey<\/strong>&#8216;s early career was as a GP before spending seven years as a medical manager and part time GP. After twelve years as a director of the National Prescribing Centre and programme director at NICE, he is now honorary professor of evidence-informed decision making at Keele University, and consultant clinical adviser in the Medicines and Prescribing Centre, NICE.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The internet was 25 years old last week. When Tim Berners-Lee was asked what has surprised him most about the internet\u2019s use he replied \u201ckittens.\u201d With respect, I disagree. The [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/blogs.bmj.com\/bmj\/2014\/03\/19\/neal-maskrey-where-is-the-evidence-for-evidence-based-medicine\/\">More&#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5753],"tags":[],"class_list":["post-31251","post","type-post","status-publish","format-standard","hentry","category-neal-maskrey"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Neal Maskrey: Where is the evidence for evidence based medicine? - The BMJ<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.bmj.com\/bmj\/2014\/03\/19\/neal-maskrey-where-is-the-evidence-for-evidence-based-medicine\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Neal Maskrey: Where is the evidence for evidence based medicine? - The BMJ\" \/>\n<meta property=\"og:description\" content=\"The internet was 25 years old last week. When Tim Berners-Lee was asked what has surprised him most about the internet\u2019s use he replied \u201ckittens.\u201d With respect, I disagree. 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