Skip to main content

Table 3 Statistical parameters related to At/Et ratio predicting occurrence of RDS

From: Validity of foetal Doppler indices in predicting postnatal respiratory distress syndrome: a prospective study

  Cut off value Sensitivity (%) Specificity (%) Area under the curve
At/Et ratio
(34 0/7–36 6/7 weeks of gestation)
0.2865 89.45 94.79 0.883
At/Et ratio
(37 0/7–38 6/7 weeks of gestation.)
0.3155 93.22 96.78 0.926