Modeling of Associated Factors that A ffect the M ethod of Pregnancy Termination

Cesarean section is the surgical delivery of a fetus, placenta, and the membranes through an incision in the mother's abdomen and uterus. Nowadays about 50-65% of all deliveries in our country are being done using this method. So we aimed to identify the factors that affect the method of delivery.Methods and Material: This study was done on 414 pregnant women referred to public and privative hospitals in Shiraz from1384 To 1385 Data regarding the mothers’ demography, history of previous deliveries, fetuses’ presentations, and neonates’ physical examinations were collected using a structured questionnaire and interview as well as using the medical records. The data were then analyzed using SPSS software version 13. Fisher exact test, independent t test, and multiple regression test were used to compare two groups. The overall prevalence of performing cesarean section was 66.4%, which were 89% and 63.28% for privative and public hospitals respectively. Age, height, body mass index, socioeconomic status, nulliparity, admissions to privative hospitals, history of previous cesarean section, pharmacologic induction of labor, macrosomia, shoulder dystocia, and breach presentation showed a significant correlation with cesarean section (P<0.05). In regression model, history of previous cesarean section, mothers’ age> 35 years, and the level of mothers’ education were the most important factors that were accompanied by performing cesarean section as the method of delivery. Cesarean section is known as the recommended method of delivery in some specific emergency situations. However its prevalence is increasing because of economical benefits for physicians as well as mothers’ fear from labor pain. So persuading mothers especially the nulliparous ones to vaginal delivery is essential to decrease the related side effects and the rate of cesarean section in the following pregnancies.