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Table 4 Sensitivity analysis of different categories of coronary stenosis

From: Prevalence and risk factors of premature coronary artery disease in patients undergoing coronary angiography in Kurdistan, Iraq

Coronary stenosis (%) Sensitivity % Specificity % PPVa % NPVb % Accuracy %
<50 % 96.2 90.7 92.0 94.4 95.2
≥50 %–≤ 70 % 95.1 91.2 93.6 92.7 94.3
>70 % 91.4 94.2 96.5 89.9 93.8
  1. aPPV = Positive predictive value. bNPV = Negative predictive value