[Risk factors in cesarean section].

Background: Improvement of surgical techniques, innovation, and technological development have increased the frequency of cesarean section.

Objective: To identify the sociodemographics, obstetrical, attention and medical practice factors of risk most frequently associated to cesarean section.

Patients And Method: From January to June 2007, we carried out a study of cases and controls with 222 cases of cesarean section and 358 controls of vaginal childbirth in Hospital General no.