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Prospective study of the effect of maternal body mass index on labor progress in nulliparous women in Egypt
Author(s) -
Maged Ahmed M.,
Belal Doaa S.,
Marie Heba M.,
Rashwan Hamsa,
Abdelaziz Suzy,
Gabr Amir A.,
Elzayat Ahmed R.
Publication year - 2017
Publication title -
international journal of gynecology and obstetrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 97
eISSN - 1879-3479
pISSN - 0020-7292
DOI - 10.1002/ijgo.12322
Subject(s) - medicine , underweight , body mass index , prospective cohort study , cervical dilatation , obstetrics , incidence (geometry) , normal weight , gynecology , cervix , overweight , surgery , physics , cancer , optics
Objective To evaluate the impact of maternal body mass index ( BMI , calculated as weight in kilograms divided by the square of height in meters) on labor progress in nulliparous women. Methods The present prospective cohort study enrolled primigravidae admitted to Kasr Al Ainy hospital, Cairo University, Egypt, during active labor between February 1, 2016, and February 28, 2017. Patients were classified into three equal groups using their BMI at admission: underweight (<18.5), normal weight (18.5–29.9), and obese (≥30). The primary outcome was the rate of cervical dilatation; secondary outcomes included the duration of the second stage of labor, neonatal delivery weight, and the mode of delivery. Results Among the 600 primigravidae enrolled (200 in each group), significant differences were recorded in the rates of cervical dilatation ( P< 0.001), and the duration of the active labor phase ( P< 0.001) and the whole of labor ( P< 0.001); in the obese group, the cervical dilatation rate was lowest and the durations of the active phase of labor and the whole of labor were longer. The incidence of intrapartum cesarean delivery ( P< 0.001) and neonatal delivery weight ( P< 0.001) also differed between the groups; both were highest in the obese group. Conclusions Patterns in labor progress, including cervical dilatation rate and labor duration, differed among patients with different BMI . ClinicalTrials.gov: NCT 02686073.