Clinical Study
The Association between Early Artificial Amniotomy and Chorioamnionitis in Nulliparous Induction of Labor
Table 5
Multivariable logistic analyses. Association between early amniotomy and chorioamnionitis, controlling for potential confounders.
| Variable | Odds ratio | 95% CI | value |
| Association with chorioamnionitis, among those with vaginal delivery | Early amniotomy | 0.56 | 0.34–0.93 | 0.02 | Confounders | | | | Intrauterine pressure catheter | 0.83 | 0.54–1.28 | 0.41 | Fetal scalp electrode | 0.86 | 0.54–1.38 | 0.54 | Epidural anesthesia | 0.94 | 0.69–1.27 | 0.68 | Year of delivery | 0.95 | 0.81–1.11 | 0.53 | Any cervical ripening | 0.90 | 0.62–1.30 | 0.58 |
| Association with chorioamnionitis, among all patients | Early amniotomy | 0.76 | 0.52–1.10 | 0.15 | Confounders | | | | Location of prenatal care | 1.33 | 1.00–1.76 | 0.04 | Gestational age at delivery | 1.02 | 0.96–1.08 | 0.61 | Epidural anesthesia | 0.99 | 0.98–1.01 | 0.51 | Meconium stained amniotic fluid | 0.99 | 0.97–1.01 | 0.44 | Any cervical ripening | 0.92 | 0.67–1.26 | 0.60 |
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