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Table 3 Receiver operating characteristic curve indexes for CBG and HbA1c vs. VPG

From: Performance of diabetes screening tests: an evaluation study of Iranian diabetes screening program

  CBG HbA1c
Cut point (as recommended) 126 (mg/dl) 6.5 (%)
n. positive 91 264
n. negative 966 793
Area under the curve 0.902 0.925
SE 0.023 0.015
p-value < 0.001 < 0.001
95% CI 0.856–0.948 0.896–0.954
Sensitivity 80.30 77.50
Specificity 89.10 94.20
Optimal cut point 116.50 7.15
  1. SE standard error, CI confidence interval