Risk factors for secondary arrest of labor among women >41 weeks' gestation with an unfavorable cervix undergoing membrane sweeping for cervical ripening.
OBJECTIVE
To identify the risk factor(s) for secondary arrest of labor among women with an unfavorable cervix at > 41 weeks' gestation.


METHODS
Prospectively all gravid women with a Bishop score of < or = 4 and no contraindication to a vaginal delivery were candidates for this study. Univariate analysis followed by logistic regression modeling were used to identify variables with a significant association.


RESULTS
Over a 9-month period, 115 women entered into the study. In univariate analysis, variables with a significant association with cesarean delivery: (1) non-Caucasian race (P = 0.007), Bishop score < 7 at hospitalization; P = 0.001, and reason for admission (P = 0.017). Logistic regression analysis yielded OR 4.7 (1.6, 15) non-Caucasian race and 9.5 (3.2, 30.8) Bishop < 7 on admission.


CONCLUSIONS
Pregnancies > 41 weeks with an unfavorable cervix, non-Caucasian race and a failure to achieve a Bishop score of > or = 7 prior to hospitalization were significant risk factors for abdominal delivery.
Magann
E F
EF
Department of Obstetrics, University of Mississippi Medical Center, Jackson, USA.
Chauhan
S P
SP
Mobley
J A
JA
Klausen
J H
JH
Martin
J N
JN
Morrison
J C
JC
D020070:Cervical Ripening; D002585:Cesarean Section / Q000706:statistics & numerical data*; D005260:Female; D005865:Gestational Age; D006801:Humans; D016015:Logistic Models; D015999:Multivariate Analysis; D007744:Obstetric Labor Complications / Q000453:epidemiology* / Q000209:etiology; D011247:Pregnancy; D011446:Prospective Studies; D012307:Risk Factors