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. Author manuscript; available in PMC: 2020 Mar 6.
Published in final edited form as: Am J Perinatol. 2019 Sep 17;37(4):357–364. doi: 10.1055/s-0039-1696641

Table 3.

Sensitivity, specificity, area under the receiver operating characteristic curve, and 95% confidence intervals for predictive models by features on admission

Feature Sensitivity (%) Specificity (%) Area under the curve 95% confidence interval
≥4-cm dilation at randomization 60 68 0.64 0.61–0.68
≥ 75% effacement at randomization 59 65 0.62 0.58–0.65
Combined dilation ≥ 4 cm and effacement ≥ 75% at randomization 82 44 0.69 0.65–0.73
Combined cervical exam features and clinical characteristicsa 81 48 0.72 0.68–0.75
a

Statistically significant difference (p-value < 0.01) between cervical examination-only model and combined model including cervical examination and clinical characteristics on admission.