We don’t know whether most medical treatments work, and we know even less about whether they cause harm – new study.

We don’t know whether most medical treatments work, and we know even less about whether they cause harm – new study – The Conversation

Original Study: Most healthcare interventions tested in Cochrane Reviews are not effective according to high quality evidence: a systematic review and meta-analysis – Journal of Clinical Epidemiology (link to abstract – $ for full-text)

Commentary on Twitter

Of 1567 interventions tested in Cochrane reviews, only 5.6% had high quality evidence on first-listed primary outcomes and positive, statistically significant results. Harms were measured only for 36.8% of the interventions. https://t.co/Zl2GlZhiQZ

— Raffaele Rasoini (@RasoiniR) April 29, 2022