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Table 3 Ultrasound parameter and bishop score sensitivity and specificity

From: Pre-induction translabial ultrasound measurements in predicting mode of delivery compared to bishop score: a cross-sectional study

Parameter AUC Sensitivity Specificity Cut off NPV PPV P-value
Bishop score 0.618 84 % 70 % 5 44 % 100 % 0.044*
Cervical length (mm) 0.628 90 % 65 % 12.5 100 % 72 % 0.034*
Fetal head-pubis symphysis distance (mm) 0.656 88 % 70 % 12 46 % 100 % 0.010*
  1. AUC Area under curve, NPV Negative predictive value, PPV Positive predictive value
  2. *Significance at the level of P < 0.05