IOL nIOL %IOL N P-valueRROR95% CI lower95% CI upperaOR95% CI lower95% CI upper
Maternal age < 35
Maternal age ≥ 35
Maternal age < 20
Age 20–24
Age 25–29
Age 30–34
Age 35–39
Age ≥40
Asian
Black
White
Hispanic/Latina
Native American
Other (specify)_____________
Nulliparous
Multiparous
Medical Insurance
Private Insurance
Height < 5′0"
Height ≥ 5′0"
Underweight <BMI of 19
Normal weight BMI 20–24
Overweight BMI 25–29
Obese BMI >= 30
Bishop score <5
Bishop score >= 5
Cervical length < 2 cm
Cervical length >= 2 cm
Cervical length < 1.5 cm
Cervical length >= 1.5 cm
Cervical length < 1.0 cm
Cervical length >= 1.0 cm
Gestational age <41 weeks GA
≥ 41 weeks GA
<42 weeks GA
≥ 42 weeks GA
37 weeks GA
38 weeks GA
39 weeks GA
40 weeks GA
41 weeks GA
42 weeks GA
Preeclampsia
No preeclampsia
GDM/DM
NO GDM/DM
AFI <= 5
AFI >5 to <20
AFI >= 20
Other
Other
Other
Other
Other
Other
Other
Other
Other
Other

From: Appendix B: Data Abstraction Forms

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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