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Table 1 Number of RCTs published in four major general medical journals

From: Assessment of adherence to the CONSORT statement for quality of reports on randomized controlled trial abstracts from four high-impact general medical journals

Journal name Abstract formats Impact factor* Number of RCTs identified, n(%) (n = 332) Number of included RCTs, n(%) (n = 271)
NEJM IMRAD+ 53.5 128 (38.6) 113 (41.7)
Lancet IMRAD+ 33.6 92 (27.7) 80 (29.5)
JAMA Eight-heading format++ 30.0 51 (15.4) 43 (15.9)
BMJ Eight-heading format++ 13.5 61 (18.4) 35 (12.9)
  1. * JCR 2010 Impact factor; + introduction/background, method, results, and discussion format; ++ objective, design, setting, participants, intervention, main outcome measure, results, and conclusions format.