Determinants and outcomes of low birth weight among newborns at a Tertiary Hospital in Zambia: A retrospective cohort study

Aim: This study aimed to assess determinants and outcomes of LBW among newborns at a tertiary hospital. Settings and Design: Retrospective cohort study at Women and Newborn Hospital in Lusaka Zambia. Subjects and Methods: We reviewed delivery case records and neonatal files between January 1, 2018, and September 30, 2019, for newborns admitted to the neonatal intensive care unit. Statistical Analysis Used: Logistic regression models were used to establish determinants of LBW and describe the outcomes. Results: Women living with human immunodeficiency virus infection were more likely to deliver LBW infants (adjusted odds ratio [AOR] = 1.46; 95% confidence interval [CI]: 1.16­1.86). Other maternal determinants of LBW were; increased parity (AOR = 1.22; 95% CI: 1.05­1.43), preeclampsia (AOR = 6.91; 95% CI: 1.48­32.36), and gestational age <37 weeks compared to 37 weeks or more (AOR = 24.83; 95% CI: 13.27­46.44). LBW neonates were at higher odds of early mortality (AOR = 2.16; 95% CI: 1.85­2.52), developing respiratory distress syndrome (AOR = 2.96; 95% CI: 2.53­3.47), and necrotizing enterocolitis (AOR = 1.66; 95% CI: 1.16­2.38) than neonates with a birth weight of 2500 g or more. Conclusions: These findings underscore the importance of effective maternal and neonatal interventions to reduce the risk of morbidity and mortality for neonates with LBW in Zambia and other similar settings.