A 5‑year review of the impact of lottery incentives on HIV‑related services

Lottery incentives are an innovative approach to encouraging HIV prevention, treatment initiation, and adherence behaviours. This paper reviews the latest research on lottery incentives’ impact on HIV-related services, and their effectiveness for motivating behaviours to improve HIV service engagement and HIV health outcomes. Our review of ten articles, related to lottery incentives, published between 2018 and 2023 (inclusive) shows that lottery incentives have promise for promoting HIV-related target behaviours. The review highlights that lottery incentives may be better for affecting simpler behaviours, rather than more complex ones, such as voluntary medical male circumcision. This review recommends tailoring lottery incentives, ensuring contextual-relevance, to improve the impact on HIV-related services. Lottery incentives offer tools for improving uptake of HIV-related services. The success of lottery incentives appears to be mediated by context, the value and nature of the incentives, and the complexity of the target behaviour.