Robson classification to evaluate cesarean section rates in a public hospital: a cross-sectional study

Abstract

Abstract Objectives: this study describes the occurrence of cesarean sections according to the Robson Classification in a public hospital in southern Brazil. Methods: a cross-sectional and retrospective study was conducted. Women who underwent vaginal delivery or cesarean section at the study location (gestational age >20 weeks and/or fetuses weighing > 500 g) were included. Stillbirths were excluded. Sociodemographic and obstetric data from July to November 2018 were retrospectively collected from medical records. Chi-square and linear trend tests were used for data analysis. The Robson Classification was analyzed according to World Health Organization recommendations, and the reasons for cesarean section were described. Results: the sample consisted of 1,531 women. The cesarean section rate was 39.1% (n=598). A greater incidence of cesarean sections was identified among women with no previous vaginal births, older women, those with higher educational levels, and those with more previous cesarean sections. Groups 1, 2 and 5 of the Robson Classification stood out for presenting cesarean section rates of 16%, 56.9% and 66.2%, respectively, and for totaling 60.3% of births by cesarean section in the studied institution. Conclusions: the percentage of cesarean sections found was greater than that reported in studies conducted in other countries. Groups 1 to 5 of the Robson Classification presented rates lower than values found in national literature. Groups 1, 2 and 5 should be prioritized for management and care interventions aiming to reduce cesarean rates.