Recruitment, consent and retention of participants in randomised controlled trials: a review of trials published in the National Institute for Health Research (NIHR) Journals Library (1997–2020)

Jacques, Richard M; Ahmed, Rashida; Harper, James; Ranjan, Adya; Saeed, Isra; Simpson, Rebecca M; Walters, Stephen J

doi:10.1136/bmjopen-2021-059230

Recruitment, consent and retention of participants in randomised controlled trials: a review of trials published in the National Institute for Health Research (NIHR) Journals Library (1997–2020)

Objectives To review the consent, recruitment and retention rates for randomised controlled trials (RCTs) funded by the UK’s National Institute for Health Research (NIHR) and published in the online NIHR Journals Library between January 1997 and December 2020. Design Comprehensive review. Setting…