OBJECTIVE: To examine the effect of maternal overweight and obesity on labor progression. METHODS: We analyzed data from 612 nulliparous women with a term pregnancy that participated in the Pregnancy, Infection, and Nutrition Study from 1995 to 2002. The median duration of labor by each centimeter of cervical dilation was computed for normal-weight (body mass index [BMI] 19.8-26.0 kg/m2), overweight (BMI 26.1-29.0 kg/m2), and obese (BMI > 29.0 kg/m2) women and used as a measurement of labor progression. RESULTS: After adjusting for maternal height, labor induction, membrane rupture, oxytocin use, epidural analgesia, net maternal weight gain, and fetal size, the median duration of labor from 4 to 10 cm was significantly longer for both overweight and obese women, compared with normal-weight women (7.5, 7.9, and 6.2 hours, respectively). For overweight women, the prolongation was concentrated around 4-6 cm, whereas for obese women, their labor was significantly slower before 7 cm. CONCLUSION: Labor progression in overweight and obese women was significantly slower than that of normal-weight women before 6 cm of cervical dilation. Given that nearly one half of women of childbearing age are either overweight or obese, it is critical to consider differences in labor progression by maternal prepregnancy BMI before additional interventions are performed.
OBJECTIVE: To examine the effect of maternal overweight and obesity on labor progression. METHODS: We analyzed data from 612 nulliparous women with a term pregnancy that participated in the Pregnancy, Infection, and Nutrition Study from 1995 to 2002. The median duration of labor by each centimeter of cervical dilation was computed for normal-weight (body mass index [BMI] 19.8-26.0 kg/m2), overweight (BMI 26.1-29.0 kg/m2), and obese (BMI > 29.0 kg/m2) women and used as a measurement of labor progression. RESULTS: After adjusting for maternal height, labor induction, membrane rupture, oxytocin use, epidural analgesia, net maternal weight gain, and fetal size, the median duration of labor from 4 to 10 cm was significantly longer for both overweight and obesewomen, compared with normal-weight women (7.5, 7.9, and 6.2 hours, respectively). For overweight women, the prolongation was concentrated around 4-6 cm, whereas for obesewomen, their labor was significantly slower before 7 cm. CONCLUSION: Labor progression in overweight and obesewomen was significantly slower than that of normal-weight women before 6 cm of cervical dilation. Given that nearly one half of women of childbearing age are either overweight or obese, it is critical to consider differences in labor progression by maternal prepregnancy BMI before additional interventions are performed.
Authors: Michelle A Kominiarek; Paul Vanveldhuisen; Judith Hibbard; Helain Landy; Shoshana Haberman; Lee Learman; Isabelle Wilkins; Jennifer Bailit; Ware Branch; Ronald Burkman; Victor Hugo Gonzalez-Quintero; Kimberly Gregory; Christos Hatjis; Matthew Hoffman; Mildred Ramirez; Uma M Reddy; James Troendle; Jun Zhang Journal: Am J Obstet Gynecol Date: 2010-07-31 Impact factor: 8.661
Authors: Antonina I Frolova; Judy J Wang; Shayna N Conner; Methodius G Tuuli; George A Macones; Candice L Woolfolk; Alison G Cahill Journal: Am J Perinatol Date: 2017-08-11 Impact factor: 1.862
Authors: Antonina I Frolova; Nandini Raghuraman; Molly J Stout; Methodius G Tuuli; George A Macones; Alison G Cahill Journal: Am J Perinatol Date: 2019-09-28 Impact factor: 1.862