RESUMO
OBJECTIVE: Adverse birth outcomes, which include stillbirth, preterm birth, low birthweight, congenital abnormalities, and stillbirth, are the leading cause of neonatal and infant mortality worldwide. We assessed adverse birth outcomes and associated factors among mothers who gave birth in Bale zone hospitals, Oromia, Southeast Ethiopia. METHODS: We used systematic random sampling in this cross-sectional study. We identified factors associated with adverse birth outcomes using bivariate analysis and multivariable logistic regression analysis. RESULTS: The proportion of adverse birth outcomes among participants was 21%. Of 576 births, 70 (12.2%) were low birthweight, 49 (8.5%) were preterm birth, 45 (7.8%) were stillbirth, and 18 (3.1%) infants had congenital anomalies. Inadequate antenatal care (adjusted odds ratio [AOR] = 6.58, 95% confidence interval [CI] 3.25-13.32), multiple pregnancy (AOR = 4.74, 95% CI 1.55-14.45), premature rupture of membranes in the current pregnancy (AOR = 2.31, 95% CI 1.26-4.21), hemoglobin level < 11 g/dL (AOR = 3.22, 95% CI 1.85-5.58), and mid-upper arm circumference less than 23 cm (AOR = 5.93, 95% CI 3.49-10.08) were all significantly associated with adverse birth outcomes. CONCLUSIONS: Approximately one in five study participants had adverse birth outcomes. Increasing antenatal care uptake, ferrous supplementation during pregnancy, and improving the quality of maternal health services are recommended.