These data were collected and meta-analysed following the methods detailed in the supported publication, which is open access. They were uploaded in two formats (zip folders): as Stata files (dta) with explanatory variable labels, and as csv files with explanatory variable lists (_varlist). Each zip folder includes four data sets: (1) "Outcomes_extracted_from_trials" contains the summary statistics that were extracted from trial records for each outcome, (2) "Data_for_sensitivity_subgroup_analyses" contains information on trial characteristics that were used to run subgroup and sensitivity analyses, (3) "ClusterRCTs_clusters" contains cluster information for those trials that were cluster-randomised, and (4) "Within_study_covariances_estimated_from_Galante_2018" contains the within-study correlations between outcome domains in the Galante 2018 trial that were used to estimate other trials' within-study correlations for the multivariate meta-analysis.