Daijiworld Media Network - Lima
Lima, May 2: A smartphone-based tool designed to monitor real-time health risk behaviours among high-risk HIV populations has demonstrated high usability and feasibility, according to a new study conducted among men who have sex with men (MSM) living with HIV in Peru.
The study explored the effectiveness of an ecological momentary assessment (EMA) application, a method that captures real-time data on sensitive behaviours while minimising recall bias often associated with retrospective reporting. Researchers noted that HIV incidence continues to rise among MSM in Peru despite ongoing intervention efforts, highlighting the need for improved strategies targeting stigma reduction, medication adherence, and risk behaviour management.
The mixed-method study involved 10 participants and was conducted in three phases — usability testing, a 10-day field trial, and a debriefing focus group. Quantitative surveys and user analytics were used to measure compliance and acceptability, while interviews and group discussions provided deeper insights into user experience.
Findings revealed high acceptance of the app, with an average usability score of 6.4 out of 7, indicating strong satisfaction, ease of use, and perceived usefulness. During the 10-day testing period, compliance reached 93 per cent, with participants completing 93 out of 100 expected entries, suggesting that consistent daily tracking is feasible in this population.
Participants described the app as user-friendly and time-efficient, with potential for long-term use. Features such as daily reminders and incentives were identified as helpful in maintaining user engagement.
Researchers emphasised that the app ensures privacy while collecting data on sensitive issues such as substance use, sexual behaviour, stigma, and treatment adherence — a key factor when working with high-risk populations.
The study provides a foundation for larger-scale EMA-based research and the development of “just-in-time” interventions, where timely insights into behavioural patterns could help reduce risky practices, combat stigma, and improve adherence to treatment among people living with HIV.