Fig. 2

an ROC curve for the onset of BPD in neonates in relation to the gestational age at labour. The AUC was 0.555 (95%CI; 0.401–0.709), and the cut-off for the gestational age at risk of developing BPD was 24.1 weeks. The cut-off value could predict BPD development with a sensitivity of 0.222 and a specificity of 1.000