roc_curve_Medical_BioStatistics_com - 1 HOME .com ROC Curve Many full term births in a hospital require induction of labor Induction succeeds in most

roc_curve_Medical_BioStatistics_com - 1 HOME .com ROC Curve...

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1 HOME MedicalBiostatistics.com ROC Curve Many full term births in a hospital require induction of labor. Induction succeeds in most cases but fails in a few. In case the induction fails, a Cesarean is done for delivery. This involves pain, time and money but also requires mental preparedness. It would be nice for both the woman and family and the attending obstetrician to anticipate a cesarean delivery on the basis of patient characteristics. The traditional method is to compute Bishop score based on dilatation, effacement, consistency and position. Other parameters that influence the success of induction of labor are maternal age, parity, BMI and amniotic fluid index. A study was carried out in n =166 cases with pre labor rupture of membrane to find if the duration since rupture can help in predicting the cesarean delivery. Although the study was prospective but sensitivity and specificity were calculated for different durations of rupture. The data obtained are shown in Table 1. Table 1: Sensitivity and (1 specificity) for Cesarean delivery at different duration of rupture of membrane Duration (hr) greater than or equal to Sensitivity 1 - specificity .00 1.000 1.000 .63 1.000 .976 .88 1.000 .969 1.25 1.000 .890 1.75 1.000 .866 2.13 1.000 .819 2.38 1.000 .811 2.75 1.000 .780 3.25 1.000 .717 3,75 1.000 .709 4.50 1.000 .646 5.13 .971 .583 5.38 .971 .575 5.75 .971 .551 6.25 .914 .378 6.75 .914 .346 7.13 .857 .291 7.38 .857 .283 7.75 .857 .276 8.25 .800 .189
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