The origins of evidence pyramids
What was the first evidence pyramid? A deep dive into the murky history of this novel way to present an evidence hierarchy reveals a significantly earlier origin that previously presumed.
Category: Evidence-Based Medicine
Lumping and splitting: brain tumours in white Britons
A much-publicised report suggests that white Britons’ brain tumour survival rates are lower than other ethnicities. But analysing the ethnicities categories used, and considering the diversity of the “brain tumour” label, complicates the picture, as the ‘Dismal Disease’ of Glioblastoma continues to confound.
The Jurassic Critique of Micozzi on Evidence Hierarchies
AI21 Labs have just released a public demo of their giant language model, Jurassic-1. At 178bn parameters, it rivals GPT-3. Feeding it my own work, it generated some interesting and potentially novel views on evidence hierarchies… and then attributed them to CAM researcher Marc Micozzi! Is Jurassic Micozzi’s critique of evidential pluralism in medicine sound?
On the Global Summit: do critiques of evidence hierarchies favour chiropractic?
The Global Summit systematic review claims that spinal manipulation therapy is not effective in preventing any non-musculoskeletal disorders. But a breakaway group has challenged their findings, in part based on my arguments regarding evidence hierarchies. Are they correct? Does my critique undermine the Global Summit review? If so, does the evidence base favour chiropractic?
Conversion Therapy: Evidence is Irrelevant
Pressure mounts upon equalities minister Kemi Badenoch to resign over the UK government’s failure to ban conversion therapies. Attention has focused on the government’s failure to publish research commissioned in 2018. But evidence about whether conversion therapy works is irrelevant: conversion therapy is not a medical intervention.
The True Causal Effect
Do medical scientists need philosophers of medicine like birds need ornithologists? A quotation often attributed to Richard Feynman claims that “philosophy of science is as useful to scientists as ornithology is to birds”. Feynman, never the intellectual slouch, acutely discounts the value of philosophy of science to him, without actually claiming that philosophers are useless, valueless, …
195 Hierarchies: A Systematic Database Update
The database of evidence hierarchies has been updated based on a new systematic review of the medical literature, and now contains over 195 hierarchies.
5 years: Hierarchies of Evidence in Evidence-Based Medicine
In the five years since the publication of Hierarchies of Evidence in Evidence-Based Medicine, what has changed and what lessons can philosophers learn?
Are hierarchies history?
Throughout my career as a philosopher of medicine, I have taken a special interest in hierarchies of evidence as used in Evidence-Based Medicine (EBM) and beyond. My critique of evidence hierarchies has adapted and developed alongside recent movements towards a less rigid hierarchalism in EBM, and with the development of …
Random Reflections: Cochrane and the Origins of Hierarchies
In 1972, Archie Cochrane published Effectiveness and Efficiency: Random Reflections on Health Services. In a little under 86 pages, Cochrane offers a wide-ranged but succinct delivery of his experience and his philosophy of evidence in clinical practice. It’s a fascinating gallop through the concerns of one of the most influential figures …