Effect of a Mentor Mother Programme on retention of mother-baby pairs in HIV care: A secondary analysis of programme data in Uganda

BACKGROUND: Community healthcare workers (CHWs) play an important role in promoting HIV-care retention. Notwithstanding inconsistencies in the outcomes of CHW programmes, these programmes are known to have a positive effect on retention of mother-baby pairs in HIV-care in sub-Saharan Africa. AIM: The aim of this analysis was to assess the effect of mothers2mothers (m2m) Ugandan Mentor Mother (MM) programme on the retention of mother-baby pairs in HIV-care. METHODS: We conducted a secondary analysis of data obtained from the m2m Uganda MM programme in nine East Central districts. The primary data was generated through a quasi-experimental study of women attending prevention of mother to child transmission of HIV (PMTCT) clinics in Uganda between January 2011 and March 2014; where those who were enrolled at PMTCT sites with the MM intervention (n = 1161) were compared with those who received standard PMCTCT services without the MM intervention (n = 1143). Frequencies and descriptive statistics were calculated for categorical and continuous measures respectively. Risk factors for retention in care were determined by clustered generalised estimating equations and reported as adjusted odds ratios (AOR) with 95% confidence intervals (95% CI). RESULTS: Retention in the PMTCT cascade was significantly higher for mother-baby pairs in the intervention arm compared to those in the control arm across all measured time points (96.7% vs 65.8% at 6 weeks after birth, p<0.001; 81.5% vs 42% at 6 weeks after cessation of breastfeeding, p<0.001; and 71.2% vs 20.6% at 18 months after birth, p<0.001). Relative to the control group, women in the intervention group were less likely to be lost to follow up following treatment initiation (AOR 0.05, 95% CI: 0.02, 0.15). There was no difference in the proportion of the retained mother-baby pairs who received prescribed PMTCT interventions at different time points but a significantly higher number of mother-baby pairs in the intervention arm were retained at different time points. CONCLUSION: HIV positive mothers and their HIV exposed children in the mothers2mothers Ugandan Mentor Mother programme had higher retention in HIV care at every step along the PMTCT cascade. We therefore recommend adoption of this peer-to-peer model in sub-Saharan Africa to complement retention in care strategies and health system interventions especially among priority and key populations.