Background: Economic strengthening (ES) interventions can address economic barriers to retention and adherence (R&A) to antiretroviral therapy in prevention of mother-to-child transmission (PMTCT) services. To inform tailoring of ES activities for PMTCT, we used financial diaries to understand the economic lives of women in PMTCT and examine associations between participants' finances and their R&A.
Methods: We collected financial data from a stratified sample (n = 241) of HIV-positive pregnant women and new mothers enrolled in PMTCT from three clinics in Zomba, Malawi. For 30 weeks, participants met with staff to record cash and in-kind inflows and outflows. We used clinical records to calculate a measure of R&A for each participant. We summarized diary data using R and used cox proportional hazard models to examine the relationship between R&A and participant characteristics and behavior.
Results: There were 68,097 cash transactions over 30 weeks, with 10% characterized as inflows. The median value of cash inflows was US$3.54 compared with US$0.42 for cash outflows. Fewer than 7% of total transactions were considered related to PMTCT, with the majority classified as food or drink. Participants in the rural site had the lowest hazard of non-adherence. Decreased hazard of non-adherence was also linked to having dependents and years on ART. There were significant differences in cash inflows and outflows between those who were always adherent and those who were not.
Conclusions: Financial inflows were large and erratic, whereas outflows were small but consistent. PMTCT expenses comprised a small proportion of overall expenses and focused on proper nutrition. The influence of inflows and outflows on adherence was significant but small; however, always adherent participants demonstrated smoother inflows and outflows, indicating an association between greater adherence and economic stability. Participants would benefit from interventions that bolster and stabilize their economic lives, including income generating activities in the agricultural industry and inclusion in village banks.