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Table 1 The checklist used for assessment of methodology reporting in this study, modified from the CONSORT for Abstracts guidelines

From: Structure formats of randomised controlled trial abstracts: a cross-sectional analysis of their current usage and association with methodology reporting

Items/Supplementary itemsa Criteria/Contentb
1. Design Explicit description of the trial design (e.g. parallel, cluster, crossover)
2. Participants Eligibility criteria for participants
3. Setting Settings where the data were collected
4. Interventions Interventions intended for each group
5. Outcome Clearly defined primary/main outcome(s) for the trial
5a. Time point When was the primary/main outcome(s) assessed
5b. No. of outcomes c The number of described primary/main outcome(s)
6. Random assignment Clear statement that participants were allocated to groups in a randomised manner
6a. Unit of randomisation Description of the unit of randomisation (e.g. patients, schools, communities)
7. Sequence generation Method used for random sequence generation
8. Allocation concealment Method used for allocation concealment
9. Blinding (Masking) Whether or not participants, caregivers, and those assessing the outcomes were blinded to group assignment
9a. Generic blinding Generic description only (e.g. single-blind, double-blind)
  1. CONSORT for Abstracts: the CONSORT (Consolidated Standards of Reporting Trials) extension guidelines for reporting of RCT abstracts [23]
  2. aOnly the scores of main quality items (no.1 to 9) contributed to the primary outcome (overall quality score, range: 0 to 9); supplementary items (5a, 5b, 6a, 9a) were documented for information purposes only
  3. bDetailed scoring criteria are available in the online Appendix
  4. cA continuous variable, not dichotomous