Correspondence to Sir Iain Chalmers, James Lind Initiative, Summertown Pavilion, Middle Way, Oxford OX2 7LG, UK; ichalmers{at}jameslind.net We are surrounded by maelstroms of claims about the effects ...

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Objectives To study the extent of blinding in randomised clinical trials of psychological interventions and the interpretative considerations if randomised clinical trials are not blinded. Design ...

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2 Department of Public Health, University of Oxford, Oxford, UK If you wish to reuse any or all of this article please use the link below which will take you to the ...

Objective To estimate associations between trivalent influenza vaccination and COVID-19 mortality as well as severe clinical outcomes among hospitalised patients. Design Retrospective observational ...

1 Kuopio Research Centre of Geriatric Care and Unit of Clinical Pharmacology and Geriatric Pharmacotherapy, School of Pharmacy, University of Eastern Finland, kuopio Campus, Yliopistonranta 1, P.O.

Correspondence to: Johns Hopkins University School of Medicine, 5300 Alpha Commons Drive #429, Baltimore, MD 21224 USA; prosenb9{at}jhmi.edu If you wish to reuse any ...

Objectives Systematic reviews and meta-analyses are the foundation of modern evidence-based medicine and their use is becoming more prolific than randomised trials. However, systematic reviews are ...

In a formerly widespread approach to medical decision making, physicians made a diagnosis, considered the management alternatives, and informed patients what would be done to help them. Decision ...

Correspondence to Dr Preeti Malik, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; pmalik.ma{at}gmail.com Objective To evaluate association between biomarkers and outcomes in ...

Objectives Access to assisted reproductive technologies (ART) for those seeking treatment is dependent on their ability to afford such treatments. A combination of out-of-pocket payment, public ...