OBJECTIVE: This study was undertaken to examine associations between induction of labor and maternal and neonatal outcomes among women without an identified indication for induction. STUDY DESIGN: This was a population-based cohort study of 2886 women with induced labor and 9648 women with spontaneous labor who were delivered at 37 to 41 weeks' gestation, all without identified medical and obstetric indications for induction. RESULTS: Among nulliparous women 19% of women with induced labor versus 10% of those with spontaneous labor underwent cesarean delivery (adjusted relative risk, 1.77; 95% confidence interval, 1.50-2.08). No association was seen in multiparous women (relative risk, 1.07; 95% confidence interval, 0. 81-1.39). Among all women induction was associated with modest increases in instrumental delivery (19% vs 15%; relative risk, 1.20; 95% confidence interval, 1.09-1.32) and shoulder dystocia (3.0% vs 1. 7%; relative risk, 1.32; 95% confidence interval, 1.02-1.69). CONCLUSION: Among women who lacked an identified indication for induction of labor, induction was associated with increased likelihood of cesarean delivery for nulliparous but not multiparous women and with modest increases in the risk of instrumental delivery and shoulder dystocia for all women.
OBJECTIVE: This study was undertaken to examine associations between induction of labor and maternal and neonatal outcomes among women without an identified indication for induction. STUDY DESIGN: This was a population-based cohort study of 2886 women with induced labor and 9648 women with spontaneous labor who were delivered at 37 to 41 weeks' gestation, all without identified medical and obstetric indications for induction. RESULTS: Among nulliparous women 19% of women with induced labor versus 10% of those with spontaneous labor underwent cesarean delivery (adjusted relative risk, 1.77; 95% confidence interval, 1.50-2.08). No association was seen in multiparous women (relative risk, 1.07; 95% confidence interval, 0. 81-1.39). Among all women induction was associated with modest increases in instrumental delivery (19% vs 15%; relative risk, 1.20; 95% confidence interval, 1.09-1.32) and shoulder dystocia (3.0% vs 1. 7%; relative risk, 1.32; 95% confidence interval, 1.02-1.69). CONCLUSION: Among women who lacked an identified indication for induction of labor, induction was associated with increased likelihood of cesarean delivery for nulliparous but not multiparous women and with modest increases in the risk of instrumental delivery and shoulder dystocia for all women.
Authors: Gláucia Virgínia Guerra; José Guilherme Cecatti; João Paulo Souza; Aníbal Faúndes; Sirlei Siani Morais; Ahmet Metin Gülmezoglu; Renato Passini; Mary Angela Parpinelli; Guillermo Carroli Journal: Bull World Health Organ Date: 2011-07-05 Impact factor: 9.408
Authors: James M Nicholson; Aaron B Caughey; Morghan H Stenson; Peter Cronholm; Lisa Kellar; Ian Bennett; Katie Margo; Joseph Stratton Journal: Am J Obstet Gynecol Date: 2009-03 Impact factor: 8.661
Authors: Malin Dögl; Pål Romundstad; Line Dahlgaard Berntzen; Oliv Camilla Fremgaarden; Katrine Kirial; Anne Molne Kjøllesdal; Benedicte S Nygaard; Line Robberstad; Thorbjørn Steen; Christian Tappert; Cecilie Fredvik Torkildsen; Magdalena R Vaernesbranden; Alexander Vietheer; Runa Heimstad Journal: PLoS One Date: 2018-11-29 Impact factor: 3.240
Authors: Brett D Einerson; Richard E Nelson; Grecio Sandoval; M Sean Esplin; D Ware Branch; Torri D Metz; Robert M Silver; William A Grobman; Uma M Reddy; Michael Varner Journal: Obstet Gynecol Date: 2020-07 Impact factor: 7.623