Table 8Predictors of induction success reported among multiparous women

ArticleSuccess MeasurePredictorPredictor
Xenakis et al.39 Ability to achieve active laborBishop Score:
0–3=95%
>3=99%
Bueno et al.40, 41 Vaginal delivery within 24 hoursBishop score:
0=40%
1–3=78%
>3=100%
Cervical length:
<27 mm=100%
>27 mm=70%
Dhall et al.13 Vaginal delivery within 24 hoursBishop Score:
< 4=53%
≥ 4=86%
Dhall score:
<7=10%
≥7=89%
Dodd et al.14 Vaginal delivery within 24 hoursBishop Score:
0–3=73%
4–6=80%
Ekman et al.17 Vaginal delivery within 24 hoursGestational Age:
≤ 38 weeks=46%
40 weeks=27%
≥ 41 weeks=67%
Peregrine et al.29, 30 Vaginal delivery within 24 hoursFetal position:
Non-occipito-posterior=61%
Occipito-posterior=77%
Chan et al.12 Spontaneous vaginal deliveryNumber of doses of prostaglandin:
0=81%
1–2=85%
≥3=60%
Alberico et al.3 Overall vaginal deliveryBishop Score:
< 5=97%
≥ 5=91%
Dhall et al.13 Overall vaginal deliveryBishop Score:
< 4=58%
≥ 4=91%
Dhall score:
<7=10%
≥7=94%

Bueno et al.40, 41 reported predictors of overall vaginal delivery only as odds ratios for parity, Bishop score, cervical length, gestational age, age, weight at delivery, biparietal diameter, and previous abortion.

From: Appendix C: Additional Analyses for Systematic Review

Cover of Maternal and Neonatal Outcomes of Elective Induction of Labor
Maternal and Neonatal Outcomes of Elective Induction of Labor.
Evidence Reports/Technology Assessments, No. 176.
Caughey AB, Sundaram V, Kaimal AJ, et al.

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