CONSORT Statement 2001: Checklist. Items to include when reporting a randomised trial.

PAPER SECTION and topicItemDescriptorReported on page #
TITLE and ABSTRACT1How participants were allocated to interventions (for example, ‘random allocation’, ‘randomised’, or ‘randomly assigned’)2
INTRODUCTION
 Background2Scientific background and explanation of rationale4
METHODS
 Participants3Eligibility criteria for participants, settings and locations where the data were collected6
 Interventions4Precise details of the interventions intended for each group and how and when they were actually administered8
 Objectives5Specific objectives and hypotheses5
 Outcomes6Clearly defined primary and secondary outcome measures and, when applicable, any methods used to enhance the quality of measurements (for example, multiple observations, training of assessors)9/10
 Sample size7How sample size was determined and, when applicable, explanation of any interim analyses and stopping rules10
 Randomisation: sequence generation8Method used to generate the random allocation sequence, including sequence generation details of any restrictions (for example, blocking, stratification)6
 Randomisation: allocation concealment9Method used to implement the random allocation sequence allocation concealment (for example, numbered containers, or central telephone), clarifying whether the sequence was concealed until interventions were assigned6 (cluster randomisation)
 Randomisation: implementation10Who generated the allocation sequence, who enrolled participants, and who assigned participants to their groups6 (HA)
 Blinding (masking)11Whether or not participants, those administering the interventions, and those assessing the outcomes were blinded to group assignment. If done, how the success of blinding was evaluated2 (cluster randomisation)
 Statistical methods12Statistical methods used to compare groups for primary outcome(s); methods for additional analyses, such as subgroup analyses and adjusted analyses10
RESULTS
 Participant flow13Flow of participants through each stage (a diagram is strongly recommended). Specifically, for each group report the numbers of participants randomly assigned, receiving intended treatment, completing the study protocol, and analysed for the primary outcome. Describe protocol deviations from study as planned, together with reasons22
 Recruitment14Dates defining the periods of recruitment and follow-up12
 Baseline data15Baseline demographic and clinical characteristics of each group20
 Numbers analysed16Number of participants (denominator) in each group included in each analysis and whether the analysis was by ‘intention-to-treat’. State the results in absolute numbers when feasible (for example, 10/20, not 50%)10
 Outcomes and estimation17For each primary and secondary outcome, a summary of results for each group, and the estimated effect size and its precision (for example, 95% confidence interval)21
 Ancillary analyses18Address multiplicity by reporting any other analyses performed, including subgroup analyses and adjusted analyses, indicating those pre-specified and those exploratory10
 Adverse events19All important adverse events or side-effects in each intervention groupn/a
DISCUSSION
 Interpretation20Interpretation of the results, taking into account study hypotheses, sources of potential bias, or imprecision and the dangers associated with multiplicity of analyses and outcomes16
 Generalisability21Generalisability (external validity) of the trial findings18
 Overall evidence22General interpretation of the results in the context of current evidence18