it tends to identify individuals with anxiety disorders, but may also incorrectly label many people who do not have anxiety; the included studies varied in quality, and mostly involved people from ...

Multi-component treatment approaches (addressing diet, physical activity, and/or other behaviours) slightly improved the physical well-being and body mass index (BMI) z-score (a score showing whether ...

Electrical stimulation is effective in increasing strength in people with weakness after stroke. As the person regains movement and can attempt everyday activities, there is only a small benefit from ...

We searched for evidence from studies known as 'clinical trials' that compared rapid TB tests with traditional methods of testing for TB, like smear microscopy and culture. We summarised the findings ...

Multi-component treatment approaches (addressing diet, physical activity, and/or other behaviours) may improve children's physical activity (measured objectively) when delivered in healthcare ...

We wanted to find out if keeping a higher blood count or haemoglobin level by blood transfusion leads to better health and development for very small preterm infants by the time they reach two years ...

Currently, there are shorter questionnaires for screening for anxiety disorders in adults, which might be worth considering before using the Beck Anxiety Inventory (BAI). At present, it remains ...

Everything that new and experienced Cochrane authors need to know about our systematic review publishing process – plus news, resources and support.

An updated Cochrane review has found that calcium supplementation has no effect on pre-eclampsia, challenging long-held assumptions about the role of calcium in preventing hypertensive disorders in ...

Why systematic and rigorous searches are important, planning and designing search strategies, sources of studies, managing and reporting the process.

Our Handbooks describe the process of preparing and maintaining diverse types of systematic reviews. Handbooks are updated regularly to reflect advances in systematic review methods and in response to ...

Plain language summaries are summaries of the health evidence that Cochrane produces, written in a way that everyone can understand. At Cochrane, we write systematic reviews of research into human ...