A systematic review of 18 papers found no consistent pattern of either randomized controlled trials or non-randomized studies giving larger or smaller estimates of treatment effect.
Systematic Review
Randomised controlled trials vs Non-randomised studies
Treatment effect size
T he overall aim of the NHS R&D Health Technology Assessment (HTA) programme is to ensure that high-quality research information on the costs, effectiveness and broader impact of health technologies is produced in the most efficient way for those who use, manage
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Britton
McKee
Black
University of Alabama at Birmingham
Health Technology Assessment
London School of Hygiene & Tropical Medicine
University of London
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Britton et al. (Thu,) reported a systematic review. Randomised controlled trials vs. Non-randomised studies was evaluated on Treatment effect size. A systematic review of 18 papers found no consistent pattern of either randomized controlled trials or non-randomized studies giving larger or smaller estimates of treatment effect.
synapsesocial.com/papers/6a10c309cfa01e990d9f786e — DOI: https://doi.org/10.3310/hta2130