title: Endorsement of the CONSORT guidelines, trial registration, and the quality of reporting randomised controlled trials in leading nursing journals: A cross-sectional analysis.
abstract: OBJECTIVE
  To establish the reporting quality of trials published in leading nursing journals and investigate associations between CONSORT Statement or trial registration endorsment and reporting of design elements.
  
  
  METHODS
  The top 15 nursing journals were searched using Medline for randomised controlled trials published in 2012. Journals were categorised as CONSORT and trial registration promoting based on requirements of submitting authors or the journal's webpage as at January 2014. Data on sequence generation, allocation concealment, follow up, blinding, baseline equivalence and sample size calculation were extracted by one author and independently verified by the second author against source data.
  
  
  RESULTS
  Seven journals were CONSORT promoting and three of these journals were also trial registration promoting. 114 citations were identified and 83 were randomised controlled trials. Eighteen trials (21.7%) were registered and those published in trial registration promoting journals were more likely to be registered (RR 2.64 95%CI 1.14-6.09). We assessed 68.7% of trials to be low risk of bias for sequence generation, 20.5% for allocation concealment, 38.6% for blinding, 55.4% for completeness of follow up and 79.5% for baseline equivalence. Trials published in CONSORT promoting journals were more likely to be at low risk of bias for blinding (RR 2.33, 95%CI 1.01-5.34) and completeness of follow up (RR 1.77, 95%CI 1.02-3.10), but journal endorsement of the CONSORT Statement or trial registration otherwise had no significant effect. Trials published in CONSORT and trial registration promoting journals were more likely to have high quality sample size calculations (RR 2.91, 95%CI 1.18-7.19 and RR 1.69, 95%CI 1.08-2.64, respectively).
  
  
  CONCLUSIONS
  Simple endorsement of the CONSORT Statement and trials registration is insufficient action to encourage improvement of the quality of trial reporting across the most important of trial design elements.
authors.affiliation: School of Nursing, University of Auckland, Auckland, New Zealand; National Institute for Health Innovation, University of Auckland, Auckland, New Zealand. Electronic address: a.jull@auckland.ac.nz.
authors.forename: Andrew
authors.initials: A
authors.lastname: Jull
authors.affiliation: School of Nursing, University of Auckland, Auckland, New Zealand; School of Population Health, University of Auckland, Auckland, New Zealand.
authors.forename: Phyu Sin
authors.initials: PS
authors.lastname: Aye
mesh_terms: D003430:Cross-Sectional Studies; D017408:Guidelines as Topic; D011643:Publishing / Q000592:standards*; D016032:Randomized Controlled Trials as Topic
keywords: CONSORT Statement; Randomised controlled trials; Reporting quality; Sample size calculation; Trial registration