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

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.

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.

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.

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.

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.