Metrics for overall acceptability
| Measure | Description | Target |
| Recruitment/refusal rates | Proportion of potential enrollees who were approached for recruitment but decided not to enrol. | N/A |
| Retention | Proportion of participants who completed ≥75% of surveys and assessments at the end of the postintervention phase, categorised as a binary outcome (Y/N). | ≥75% |
| Adherence | Proportion of participants who completed intervention per study protocol. | ≥75% |
| Acceptability | Median value from postintervention survey question asking whether participants would recommend VRAGI to another participant on a scale from 0 (definitely not) to 10 (definitely yes). | ≥8.0 |