2021 Volume 57 Issue 3 Pages 481-485
It has been reported that continuous psychological support during delivery reduces cesarean section and instrumental vaginal birth, but no similar study has been reported in Japan. We included primiparous pregnant women, who were planned to have vaginal delivery at Teine Keijinkai Hospital between November 2017 and October 2019. Exclusion criteria were premature delivery and multiple pregnancy. The primary endpoint was forced delivery rate（cesarean section and instrumental delivery）. The confounding factors were: gestational diabetes mellitus complicated pregnancy, hypertensive disorders of pregnancy, induction of labor, overweight（BMI> 25kg/m2）, low BMI（＜ 18.5kg/m2）, maternal age over 35 years, maternal age under 20 years, pregnancy by assisted reproductive technology, oligohydramnios, fetal growth restriction, and premature rupture of the membranes. Logistic regression analysis was performed to analyze the odds ratio for forced delivery. Of the 1167 deliveries during the period, 448 women were included in the study, and 143 were forced deliveries. 346 of them received support during delivery and 102 did not. The number of forced deliveries were 113（32.7%）and 30（29.4%）each, which did not have significant differences（p=0.63）. The adjusted odds ratio was 1.39（95%CI: 0.82-2.38）for women who ended with forced delivery who had support during labor. There was no significant relation between support during labor and forced delivery.
