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Table 4 Prediction of Type 1 ROP by the CHOP ROP Model Based on Birth Weight, Gestational Age, and Daily Weight Gain Rate

From: Using ROPScore and CHOP ROP for early prediction of retinopathy of prematurity in a Chinese population

   Sensitivity (%) Specificity (%) P value 95% CI
Daily weight Gain Rate (g/d) Area under ROC curve 0.014* 0.0026** 0.0034*** 0.014 0.0026 0.0034   
From birth to six weeks of life 0.816 100% 100% 100% 21.4% 2.7% 4.3% < 0.001 0.732 ~ 0.899
The third week 0.802 100% 100% 100% 41.2% 5.3% 9.6% < 0.001 0.722 ~ 0.882
The fourth week 0.726 100% 100% 100% 36.9% 5.3% 7.5% 0.001 0.638 ~ 0.973
The fifth week 0.728 100% 100% 100% 32.6% 4.8% 6.4% 0.001 0.646 ~ 0.809
The sixth week 0.762 100% 100% 100% 38.0% 4.3% 8.0% < 0.001 0.684 ~ 0.840
  1. *CHOP ROP equation with cut point of 0.0140; **CHOP ROP equation with cut point of 0.0026; ***CHOP ROP equation with cut point of 0.0034