Survival time and its predictors among preterms in the neonatal period post-discharge in Busoga region-Uganda June – July 2017

Abstract

Introduction: Globally, out of 15 million babies born preterm each year, one million die. In Uganda, preterm deaths contribute 30% of the neonatal mortality rate. There is a paucity of information on the most critical time to conduct high impact interventions among neonate born preterm especially post-discharge from hospital. We determined the survival time to mortality and its predictors among preterm infants in the neonatal period post-discharge from hospital. Methods: We conducted a prospective cohort study in which 128 preterm infants were recruited from six hospitals including Jinja Regional Referral, St. Francis Buluba, Kamuli mission, Iganga, Kamuli and Bugiri district hospitals were prematurity was confirmed using gestation age and birth weight. Initially, background characteristics of the participants were assessed and then followed prospectively until 28 days. Kaplan-Meier survival analysis was used to estimate survival probabilities while time to preterm mortality was described using the 5thpercentile. Cox proportional hazards regression was used to determine predictors of survival. Results: Overall, 8% (10/128) of the preterm infants died; the 5th percentile survival time was 17 days. There was a 6-fold increase in hazard to mortality among preterm infants who had Kangaroo Mother Care (KMC) compared to those who did not (adjusted HR: 6.4, 95%CI: 1.7 – 24.5), a 5-fold increase in the hazard to preterm mortality among preterm infants born to HIV positive mothers compared to their counterparts who had HIV negative mothers (adjusted HR: 4.9, 95%CI: 1.1 – 22.2); and a 4-fold increase in the hazard to preterm mortality among preterm infants who were not exclusively breastfed compared to those who were exclusively breastfed (adjusted HR: 4.4, 95%CI: 1.1 – 18.3). Conclusion: Among babies who died, death occurred in the first 17 days while factors negatively associated with preterm survival included; not practicing Kangaroo Mother Care, not being breastfed exclusively and being born to an HIV positive mother. We recommend follow-up care for preterm infants following hospital discharge, implementation of prevention of mother to child transmission of HIV and exclusive breastfeeding of preterm babies.