Receipt of infant HIV DNA PCR test results is associated with a reduction in retention of HIV-exposed infants in integrated HIV care and healthcare services: a quantitative sub-study nested within a cluster randomised trial in rural Malawi.

BACKGROUND: Retention of HIV-infected mothers in integrated HIV and healthcare facilities is effective at reducing mother-to-child-transmission (MTCT) of HIV. In the context of Option B+, we examined maternal and HIV-exposed infant retention across three study arms to 18 months postpartum: mother-and-infant clinics (MIP), MIP with short-messaging service (MIP + SMS) and standard of care (SOC). In particular, we focused on the impact of mothers receiving an infant's HIV PCR test result on maternal and infant study retention. METHODS: A quantitative sub-study nested within a cluster randomised trial undertaken between May 2013 and August 2016 across 30 healthcare facilities in rural Malawi enrolling HIV-infected pregnant mothers and HIV-exposed infants on delivery, was performed. Survival probabilities of maternal and HIV-exposed infant study retention was estimated using Kaplan-Meier curves. Associations between mother's receiving an infant's HIV test result and in particular, an infant's HIV-positive result on maternal and infant study retention were modelled using time-varying multivariate Cox regression. RESULTS: Four hundred sixty-one, 493, and 396 HIV-infected women and 386, 399, and 300 HIV-exposed infants were enrolled across study arms; MIP, MIP + SMS and SOC, respectively. A total of 47.5% of mothers received their infant's HIV test results < 5 months postpartum. Receiving an infant's HIV result by mothers was associated with a 70% increase in infant non-retention in the study compared with not receiving an infant's result (HR = 1.70; P-value< 0.001). Receiving a HIV-positive result was associated with 3.12 times reduced infant retention compared with a HIV-negative result (P-value< 0.001). Of the infants with a HIV-negative test result, 87% were breastfed at their final study follow-up. CONCLUSIONS: Receiving an infant's HIV test result was a driving factor for reduced infant study retention, especially an infant's HIV-positive test result. As most HIV-negative infants were still breastfed at their last follow-up, this indicates a large proportion of HIV-exposed infants were potentially at future risk of MTCT of HIV via breastfeeding but were unlikely to undergo follow-up HIV testing after breastfeeding cessation. Future studies to identify and address underlying factors associated with infant HIV testing and reduced infant retention could potentially improve infant retention in HIV/healthcare facilities. TRIAL REGISTRATION: Pan African Clinical Trial Registry: PACTR201312000678196 .

Impact of Mother-Infant Pair Clinics and Short-Text Messaging Service (SMS) Reminders on Retention of HIV-Infected Women and HIV-Exposed Infants in eMTCT Care in Malawi: A Cluster Randomized Trial.

BACKGROUND: Poor retention of mothers and HIV-exposed infants (HEIs) in HIV care threatens efforts to eliminate pediatric HIV. Novel strategies are required to address this challenge. We compared 12-month maternal and HEI postpartum retention in health facilities implementing the following HIV care delivery models: integrated HIV and maternal, neonatal, and child health services [mother-infant pair (MIP) clinics], MIP clinics plus short-text messaging service (SMS) reminders to prevent default (MIP + SMS), and standard of care (SOC). METHODS: From May 2013 to August 2016, a cluster randomized trial was conducted in rural Malawi, which randomized 30 health facilities to the 3 service delivery models. HIV+ pregnant women and HEIs were enrolled and followed up to monitor compliance with prescheduled visits and retention. Log binomial regression, using generalized estimated equation, was used to assess the impact of the models on retention. RESULTS: The trial enrolled 461, 493, and 396 HIV+ pregnant women and 386, 399, and 300 HEIs into the MIP, MIP + SMS, and SOC arms, respectively. Compared with the 12-month maternal retention rate in the SOC arm (22.2%), the rates were similar in the MIP arm [19.3%, risk ratio (RR): 0.85, 95% confidence interval (CI): 0.56 to 1.30] and in the MIP + SMS arm (24.9%, RR: 1.08, 95% CI: 0.87 to 1.35). Compared with the 12-month infant retention rate in the SOC arm (9.8%), the rates were similar in the MIP arm (8.0%, RR: 0.89, 95% CI: 0.31 to 2.58) and in the MIP + SMS arm (19.5%, RR: 1.40, 95% CI: 0.85 to 2.31). CONCLUSIONS: MIP and MIP + SMS service delivery models were ineffective in improving maternal and infant retention in rural Malawi.

Integrating HIV and Maternal, Neonatal and Child Health Services in Rural Malawi: An Evaluation of the Implementation Processes and Challenges.

INTRODUCTION: Introducing Option B+ in Malawi increased antiretroviral therapy coverage among pregnant and breastfeeding women 3 fold. The Promoting Retention among Infants and Mothers Effectively (PRIME) study integrated care of Maternal, Neonatal and Child Health services through a mother-infant pair (MIP) clinic. This article evaluates the implementation processes and challenges health care workers' experienced in implementing these MIP clinics. METHODS: Between May 2013 and August 2016, 20 health facilities implemented MIP clinics. Health care workers' performance implementing MIP clinics was assessed through a mentorship score from 0 to 5 and supplemented with qualitative data from mentorship reports. Visit alignment of participants' appointment and attendance dates with MIP clinic dates were calculated and summarized by overall proportions among all patient visits. RESULTS: The average mentorship score was 3.8, improving from 3.0 to 4.2 from quarter one 2015 to quarter one 2016. Proportions of maternal and infant appointment dates that aligned with MIP clinic dates were 47.0% and 55.9%, with greatest improvement between 2013 and 2015. Proportions of maternal and infant attendance dates that aligned with MIP clinic dates were 41.7% and 51.2% and improved over time. DISCUSSION: Despite improvement in staff mentorship scores, many MIPs were not exposed to integrated HIV and Maternal, Neonatal and Child Health services offered through MIP clinics primarily because of clinic scheduling challenges. To improve utilization of integrated MIP clinics, careful design of a delivery approach is needed that is acceptable to clinic staff, addresses local realities, and includes appropriate investment and oversight.