Depression, retention in care, and uptake of PMTCT service in Kinshasa, the Democratic Republic of Congo: a prospective cohort

There is a clear need for effective strategies to address the factors that affect retention, or lost-to-follow-up (LTFU) and adherence to HIV care and treatment. Depression in particular may play an important role in the high rates of LTFU along the prevention of mother-to-child HIV transmission (PMTCT) cascade in sub-Saharan Africa. This study assessed the association between prenatal depression and (1) LTFU or (2) uptake of PMTCT services. As part of a randomized control trial to evaluate the effect of conditional cash transfers on retention in and uptake of PMTCT services, newly diagnosed HIV-infected women, ≤32 weeks pregnant, registering for antenatal care (ANC), in 85 clinics in Kinshasa, Democratic Republic of Congo (DRC), were recruited and followed-up until LTFU, death, transfer out, or six weeks postpartum. Participants were interviewed at enrollment using a questionnaire which included the Patient Health Questionnaire (PHQ-9). Depression was defined as a PHQ-9 score of ≥15. Among 433 women enrolled, 51 (11.8%) had a PHQ-9 score ≥15 including 15 (3.5%) with a score ≥20. At six weeks postpartum, 67 (15.5%) were LFTU and 331 (76.4%) were in care and had accepted all available PTMCT services. Of participants with depression at enrollment, 17.7% (9/51) were LTFU at six weeks postpartum compared to 15.2% (58/382) among those without, but the association was not statistically significant. On the other hand, 78.4% (40/51) of participants with prenatal depression were in care at six weeks postpartum and had attended all their scheduled visits and accepted available services compared to 76.2% (291/382) among those without depression. In this cohort of newly diagnosed HIV-infected pregnant women, prenatal depression assessed with a PHQ-9 score ≥15 was not a strong predictor of LTFU among newly diagnosed HIV-infected women in Kinshasa, DRC.