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News
New tool helps researchers spot problematic trials before they distort evidence
24 September 2026
A tool for assessing the trustworthiness of randomized controlled trials (RCTs) has been published today in The BMJ, giving researchers a structured way to identify problematic studies before they're included in systematic reviews.
Mifepristone more effective than other common emergency contraception methods
21 September 2026
Emergency contraception containing mifepristone prevents more pregnancies with fewer side effects than some other common emergency contraceptive pills such as levonorgestrel, according to a new Cochrane review involving 87 trials.
Cardiac rehabilitation cuts hospital admissions and heart attack risk
18 September 2026
Exercise-based cardiac rehabilitation reduces hospital admissions by a third and heart attack risk by more than a quarter, as well as remaining beneficial in the long term, a new Cochrane review finds. The evidence also suggests that newer home-based and digitally supported cardiac rehabilitation programmes can be just as effective as traditional centre-based services.
Widely-used back braces lack strong evidence for chronic low back pain
2 September 2026
A new Cochrane review finds very low-quality evidence on lumbar supports for chronic low back pain, meaning that no strong recommendations can be made either for or against their use.
Latest evidence
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