Table 1

CONSORT checklist for randomised controlled trials

Heading Subheading Descriptor Was it reported? On what page No?
TitleIdentify the study as a randomised trial
AbstractUse a structured format
IntroductionState prospectively defined hypothesis, clinical objectives, and planned subgroup or covariate  analyses
MethodsProtocolDescribe
Planned study population, together with inclusion/exclusion criteria
Planned interventions and their timing
Primary and secondary outcome measure(s) and the minimum important differences(s),
 and indicate how the target sample size was projected
Rationale and methods for statistical analyses, detailing main comparative analyses and  whether they were completed on an intention-to-treat basis
Prospectively defined stopping rules (if warranted)
AssignmentDescribe
Unit of randomisation (eg, individual, cluster, geographic)
Method used to generate the allocation schedule
Method of allocation concealment and timing of assignment
Method to separate the generator from the executor of assignment
Masking (blinding)Describe mechanism (eg, capsules, tablets); similarity of treatment characteristics (eg,  appearance, taste); allocation schedule control (location of code during trial and when  broken); and evidence for successful blinding among participants, person doing intervention,  outsome assessors, and data analysts.
ResultsParticipant flow  and follow upProvide a trial profile (figure) summarising participant flow, numbers, and timing of  randomisationassignment, interventions, and measurements for each randomised group
AnalysisState estimated effect of intervention on primary and secondary outcome measures, including a  point estimate and measure of precision (confidence interval)
State results in absolute numbers when feasible (eg, 10/20, not 50%)
Present summary data and appropriate descriptive and inferential statisitics in sufficient detail to  permit alternative analyses and replication
Describe prognostic variables by treatment group and any attempt to adjust for them
Describe protocol deviations from the study as planned, together with the reasons
CommentState specific interpretation of study findings, including sources of bias and imprecision (internal  validity) and discussion of external validity, including appropriate quantitative measures when  possible
State general interpretation of the data in light of the totality of the available evidence