Hartmann 2020.

Methods	Randomised controlled trial
Participants	Inclusion criteria (couples) 1. Female partner age 18 to 40 years 2. Married 3. Both partners speak Kannada 4. Female partner has ever experienced psychological, physical, or sexual violence perpetrated by her male partner 5. Consent from both partners Exclusion criteria 1. Male partner severely alcohol dependent or at risk of severe withdrawal symptoms 2. Female partner reporting ≥ 6 occurrences of severe physical or sexual violence in past 6 months 3. One or both members fearing the intervention may increase violence
Interventions	Intervention arm 1 Incentives and behavioural couples therapy (BCT): same as incentives arm, with addition of 4 weekly 1‐hour BCT sessions on topics such as alcohol use and communication. Visual materials and assignments given. Sessions delivered by lay counsellors who had prior social work experience and had been trained on BCT facilitation and were supervised by a senior clinical psychologist Intervention arm 2 1. Incentives only 2. Every other day breathalyzer test for 4 weeks 3. Monetary incentive for each negative BrAC score as well as participation fee 4. Financial goal‐setting exercise Control 1. Every other day breathalyzer test for 4 weeks 2. Participation fee given
Outcomes	Primary outcome Proportion of negative BrAC (alcohol use assessed by breathalyzer) tests (<0.01 g/dL) Secondary outcomes 1. Proportion of participants sober per day 2. Longest duration of abstinence 3. Women’s report of partner’s alcohol use 4. Indian Family Violence and Control Scale (IFVCS), with sexual violence domain omitted
Notes