caa a22 4500 445309822 CHVBK 20180317142625.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s00404-011-1868-z doi (NATIONALLICENCE)springer-10.1007/s00404-011-1868-z Effect of pre-pregnancy body mass index and weight gain during pregnancy on the risk of emergency cesarean section in nullipara [Elektronische Daten] [Dong Jang, Yun Jo, Gui Lee] Purpose: We attempted to examine the effects of delivery via emergency cesarean section in nullipara, presenting with increase in body weight during pregnancy and pre-pregnant body mass index. Methods: A total of 1,024 nullipara with singleton pregnancy who experienced labor pain after 37 gestational weeks at St.Vincent's Hospital of Catholic University of Korea during 1 January 2004 to 31 March 2010 were enrolled in this study. Study patients were divided into four groups based on pre-gestational BMI, two groups based on weight gain more than 18kg during pregnancy and three groups based on weight gain according to the guidelines of IOM (Institute of Medicine). Univariate and multivariate analysis were performed. Results: On univariate analysis, the frequency of emergency cesarean section was increased both in pre-pregnant overweight women and women with excess weight gain during pregnancy. On multivariate analysis, however, increase in body weight during pregnancy according to IOM guidelines did not independently affect the frequency of emergency cesarean section. If the degree of increase in body weight during pregnancy was divided based on a definite numeric value of 18kg, the frequency of cesarean section was significantly increased. Conclusions: For successful spontaneous delivery, the nullipara should become pregnant when the pre-gestational BMI is maintained at an appropriate level. We also propose that women should not gain more than 18kg until delivery in all pre-BMI groups. Springer-Verlag, 2011 Body mass index nationallicence Cesarean section nationallicence Obesity nationallicence Pregnancy nationallicence Weight gain nationallicence Jang Dong Department of Obstetrics and Gynecology, College of Medicine, St. Vincent's Hospital, The Catholic University of Korea, 93-6 Ji-dong, Paldal-gu, 442-723, Suwon, Kyeonggi, Korea aut Jo Yun Department of Obstetrics and Gynecology, College of Medicine, St. Vincent's Hospital, The Catholic University of Korea, 93-6 Ji-dong, Paldal-gu, 442-723, Suwon, Kyeonggi, Korea aut Lee Gui Department of Obstetrics and Gynecology, College of Medicine, St. Vincent's Hospital, The Catholic University of Korea, 93-6 Ji-dong, Paldal-gu, 442-723, Suwon, Kyeonggi, Korea aut Archives of Gynecology and Obstetrics Springer-Verlag 284/6(2011-12-01), 1389-1397 0932-0067 284:6<1389 2011 284 404 https://doi.org/10.1007/s00404-011-1868-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00404-011-1868-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jang Dong Department of Obstetrics and Gynecology, College of Medicine, St. Vincent's Hospital, The Catholic University of Korea, 93-6 Ji-dong, Paldal-gu, 442-723, Suwon, Kyeonggi, Korea aut NATIONALLICENCE 700 1- Jo Yun Department of Obstetrics and Gynecology, College of Medicine, St. Vincent's Hospital, The Catholic University of Korea, 93-6 Ji-dong, Paldal-gu, 442-723, Suwon, Kyeonggi, Korea aut NATIONALLICENCE 700 1- Lee Gui Department of Obstetrics and Gynecology, College of Medicine, St. Vincent's Hospital, The Catholic University of Korea, 93-6 Ji-dong, Paldal-gu, 442-723, Suwon, Kyeonggi, Korea aut NATIONALLICENCE 773 0- Archives of Gynecology and Obstetrics Springer-Verlag 284/6(2011-12-01), 1389-1397 0932-0067 284:6<1389 2011 284 404 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer