Trends and Determinants of the Use of Episiotomy in a Prospective Population-Based Registry from Central India

Abstract

Background: Findings from research and recommendations from the World Health Organization favors restrictive use of episiotomy, but whether this guidance is being followed in India and factors associated with its use are not known. Methods: We conducted a secondary analysis of data collected by the Maternal Newborn Health Registry, a prospective population-based pregnancy registry established in Central India (Nagpur, Eastern Maharashtra). We examined mode of delivery and use of episiotomy in vaginal deliveries from 2014 to 2018, as well as maternal and birth characteristics, health systems factors, and concurrent obstetric interventions associations with its use with multivariable Poisson regression models. Results: During the five-year interval, the rate of episiotomy in vaginal birth rose from 13% to 31% despite a decline in assisted vaginal delivery. In the adjusted analysis prior birth, multiple gestations, seven or more years of maternal education, higher gestational age, higher birthweight, delivery by an obstetrician (as compared to midwife or general physician), and birth in hospital (as compared to clinic or health center) were associated with episiotomy. After adjusting for these factors, year over year rise in episiotomy was significant with an adjusted incidence rate ratio (AIRR) of 1.10 [95% confidence interval (CI) 1.08-1.13; p=0.018]. We found an association between episiotomy and several other obstetrics interventions, with the strongest relationship for maternal treatment with antibiotics (AIRR 4.31, 95% CI 3.17 – 5.87; p=0.003). Conclusions: Episiotomy in this population-based sample from central India steadily rose from 2014 to 2018. This increase over time was observed even after adjusting for patient characteristics, obstetric risk factors, and health system features, such as specialty of the delivery provider. Our findings have important implications for maternal-child health and respectful maternity care given that most women prefer to avoid episiotomy; they also highlight a potential target for antibiotic stewardship as part of global efforts to combat antimicrobial resistance. Trial Registration: The trial was registered at ClinicalTrials.gov under reference number NCT01073475.