Risk factors and outcome of induction of labor amongst paturient in bowen university teaching hospital: A five year review

Abstract

Induction of labour (IOL) is one of the most important interventions in obstetric practices and is frequently used to avoid serious complications to the pregnant mother or the fetus.  Objective  The objective of the study is to determine labour induction outcomes and associated factors. This was a retrospective, descriptive, cross‑sectional study of 170 women who had induction of labour at the Bowen University teaching Hospital, Ogbomoso, Nigeria between 1st January 2018 and 31st December 2022. Primary outcome were mode of delivery following labour induction; vaginal or caesarean delivery. Analyses were done using Chi‑square tests, t‑tests and logistic regression. The study result showed a prevalence of induction of labour of 10% with success rate of 60.6%. Combination of intracervical extra-amniotic Foley's catheter and misoprostol was the commonest labour induction method used. Commonest indication for IOL was post dated pregnancy. High parity (> para 5) was associated with increased success rate ( P= 0.011, AOR= 0.522 95% CI = 0.153-0.325). Duration of latent phase greater than 12 hours, labour induction duration greater than 10 hours and those that are resident in rural areas had an increase risk of failed induction. The perinatal mortality from labour induction was low (2.9%) and no maternal mortality was recorded following induction of labour in this study. Success rate needs to be improved upon. Higher parity was associated with successful outcomes. We recommend further multicentre, prospective studies of a larger sample size to have a better understanding of factors that could affect the outcome of induction of labour.