Inverse-variance weighting reigns in meta-analysis 1. More precise studies, or rather those seemingly more precise based on lower reported standard errors, get a greater weight explicitly or ...

Obesity is a major health challenge. Here we show that body mass index is positively associated with risk of 19 cancers and inversely associated with 3, based on a systematic review and meta-analysis ...

Women are twice as likely as men to receive replacement and have higher rates of recurrent MR, but survival is similar.

The benefit of beta-blockers after myocardial infarction in patients with a preserved left ventricular ejection fraction (LVEF) is unclear. We conducted a meta-analysis at the individual-patient level ...

Sometimes, psychological studies on the same topic show different results. To know what the evidence looks like when the data from all studies on a topic are combined, psychologists often conduct ...

Background Marathon running has numerous cardiovascular effects. Studies report transient physiological changes, while others ...

Introduction Media and digital technologies shape adolescent development across interconnected online and offline contexts, offering opportunities for learning and connection while also exposing young ...