[Classification of caesarean sections by 10 Robson groups in a second level hospital].

Background: In recent years, cesarean section (CS) rates have increased alarmingly. The World Health Organization (WHO) proposes to use the Robson classification system as a global standard, which contributes to a better analysis of CS indications, making it possible to establish strategies to reduce them. Objective: To analyze the classification of CS by Robson groups from July to September 2020 at the Hospital General de Zona No. 4 (District General Hospital [DGH] No. 4), in Celaya, Guanajuato. Material and methods: Retrospective study which included 160 records of women undergoing CS. Robson's group classification was used, and descriptive statistics and cluster analysis were performed to better understand the classification groups. Results: The average age was 27.6 ± 5.6 years. 53.1% had secondary school; 46.9% was a housewife; 46.3% was laborer; 42.8% were cohabitating; 50% had 1 or more births; 42.5% previous CS; 96.9% 1 fetus; 91.9% cephalic presentation; 78.8% 37 weeks of gestational age or more. Robson's group 5 (previous CS) had the highest percentage (42.5%), followed by group 2 (primiparous) with 20.6%, and group 10 (premature) 13.1%. Cluster analysis formed 3 groups, where cluster 1 and 3 contained group 5 of Robson's classification. Conclusions: DGH No. 4 must carry out the necessary strategies so that women with a previous cesarean section can have a vaginal delivery, without compromising the well-being of the mother-child pair, in addition to interventions to avoid primary CS, because women in group 1 and 2 will potentially belong to group 5, in the next obstetric event.