Prevalence, risk factors and outcomes of labor induction among women delivered at Maternity Hospitals of Mongolia

Abstract

Introduction: Induction of labor is the stimulation of uterine contractions during pregnancy before labor begins on its own to achieve a vaginal birth. It is a common obstetric procedure that is indicated when the benefits to either mother or fetus outweigh those of pregnancy continuation. We aimed to determine the overall rate, outcomes, and associated factors of labor induction. Methods: A retrospective cross-sectional study was conducted among 5852 mothers delivered in "Urguu" First Maternity Hospital and National Center for Maternal and Child Health (NCMCH) between January 1st, 2019 and May 31st, 2019. SPSS version 25 was used for statistical analysis. Descriptive and binary logistic regression analyses were used to determine study variables and the association between dependent variables and independent variables. Comparison of proportions was performed by chi-square (χ2) for categorical variables to determine associations between selected covariates and induction. Results: A total of (5852) women were delivered at the research area, out of which (1079) were induced resulting in a prevalence of induction of (18.43%). Of the 1079 induced women, the most common indications for labor induction were 659 (61.1%) prolonged labor, 188 (17.4%) premature rupture of membranes, 139(12.9%) pre-eclampsia, and 87 (8.1%) oligohydramnios. Among the induced labor, 1031 (95.6%) were delivered by vaginal and 48 (4.4%) by Cesarean section. Conclusions: The prevalence of inducted labor was 18.43%. Factors associated with labor induction were maternal age, employment, residential type, and an abortion. The most common indications were premature rupture of membrane, prolonged labor, and pre-eclampsia. The successful rate was considerably higher and the frequency of cesarean sections was lower than the result of other studies.