Prevalence and associated risk factors of preterm birth among neonates in referral hospitals of Amhara Region, Ethiopia

Abstract

IntroductionPreterm birth (PTB) is the largest direct cause of neonatal mortality and the second leading cause of under-five mortality following pneumonia. Although there are studies conducted before, the magnitude of PTB remains a major issue in most developing countries including Ethiopia. Therefore, this study aims to assess the prevalence and associated factors of premature birth among newborns delivered in Amhara Region Referral Hospitals, Northern Ethiopia.MethodsA hospital-based cross-sectional study was undertaken from February to April 2020. A systematic sampling technique was used to select 482 mother-newborn pairs. The data were collected by interviewing the mothers and reviewing their charts using a structured and pretested questionnaire. The outcome variable was preterm birth. Data were entered using Epi-data version 4.6 and then analyzed using STATA software (version 14). Bivariable and multivariable logistic regression analyses were done to determine the risk factors associated with premature birth.ResultsIn this study, the prevalence of premature birth was 11.41% (95% CI: 8.9, 14.6%). In multivariable logistic regression model; maternal age < 20 years (Adjusted odds ratio (AOR) = 7.8: 95% CI 2.3–26), preeclampsia (AOR = 5: 95% CI 2.3–11), premature rupture of membrane (AOR = 3.9: 95%CI 1.6–9.0), chronic medical illness (AOR = 4.6:95% CI2.1–10), and history of stillbirth (AOR = 2.7: 95% CI 1.1–7.3) were significantly associated with preterm birth.ConclusionThe study indicates preterm birth is a major public health problem among newborns delivered in Amhara region referral hospitals. The risk factors associated with preterm birth are maternal age <20 years, preeclampsia, premature rupture of membranes, chronic medical illness, and history of stillbirth. Therefore, public health interventions have to be made to reduce the burden of prematurity through early detection and management of preeclampsia, premature rupture of membranes, and chronic medical illness. Obstetric care providers should give due attention to women with an age of <20 years and a history of stillbirth.