The MAISHA study (component A) is a mixed methods evaluation, including a cluster randomised trial, of a small group based social empowerment intervention to prevent intimate partner violence (IPV) against women in Mwanza city, Tanzania. The trial was conducted among women already participating in a group-based microfinance scheme, with the microfinance group being the unit of randomisation and (in the intervention arm) the unit of intervention delivery. The CRT involved two surveys of trial participants, the first conducted prior to randomisation (baseline), and the second 29 months later (follow-up). The surveys collected data on demographics, childhood experiences of abuse, health, attitudes and norms relating to gender and IPV, relationships, IPV experiences and responses, children, and respondents' interactions with their communities. This dataset underlies the primary trial analysis of intervention impact. It comprises 1,049 records (each pertaining to an individual trial participant), and contains a subset of variables from the baseline and follow-up surveys. NB: Data pertaining to a second trial of the same MAISHA intervention conducted among women not receiving microfinance (MAISHA component B) are not included in this record.

This dataset is subject to ethical and legal restrictions associated with the original study, which prevent it being made open available. Access may be provided to anonymised data for use in ethically approved research on condition it complies with the consent conditions. The applicant institution will be required to sign a Data Transfer Agreement prior to being provided with data. Publications and presentations arising from use of the data should include the following disclaimer: "The author(s) is/are not part of the MAISHA study team and had no part in the design or conduct of the MAISHA study. The data analysis presented here was conducted by the author(s) independently from the MAISHA study team, and the inferences, views and opinions expressed represent those of the author(s) alone. The MAISHA team have had no role in this analysis, or the writing of this paper. The paper has not been read or approved by any member of the MAISHA study team prior to publication."

Intimate partner violence, Violence against women, Violence prevention, Cluster randomised trial, Tanzania, Interventions