The existing epidemiological research on long COVID has suffered from overly broad case definitions and a striking absence of control groups, which have led to distortion of risk. The unintended ...

BMJ Evidence-Based Medicine (BMJ EBM) publishes original evidence-based research, insights and opinions on what matters for health care. We focus on the tools, methods, and concepts that are basic and ...

Correspondence to Dr Kerry Dwan, Centre for Reviews and Dissemination, University of York, York, UK; Kerry.dwan{at}york.ac.uk A systematic review identifies, appraises and synthesises all the ...

Objectives Our objective was to develop and test prompts designed to generate balanced, evidence-based information from ...

Correspondence to Dr Elaine Lehane, Nursing & Midwifery, University College Cork, National University of Ireland, Cork, Ireland; e.lehane{at}ucc.ie Fostering a culture of clinical effectiveness in ...

Correspondence to Dr Mark H Ebell, Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, 125 Miller Hall, UGA Health Sciences Campus, Athens, GA 30602, USA; ...

This paper is part of a series of methodological guidance from the Cochrane Rapid Reviews Methods Group. Rapid reviews (RRs) use modified systematic review methods to accelerate the review process ...

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Objectives To compare the effectiveness of different exercise interventions in improving sleep quality and alleviating insomnia severity among patients with insomnia. Design Our study design was a ...

Correspondence to Dr Patricia Logullo, UK EQUATOR Network Centre, Centre for Statistics in Medicine (CSM), University of Oxford, Oxford, OX3 7LD, UK; patricia.logullo{at}ndorms.ox.ac.uk Scientific ...

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Correspondence to Dr Elaine Lehane, Catherine McAuley School of Nursing and Midwifery, University College Cork, Cork T12 K8AF, Ireland; e.lehane{at}ucc.ie To highlight and advance clinical ...