Table 5 Diagnostic value of Hcy level in the prediction of occurrence and acute progression of COPD
Occurrence | Acute progression | |
|---|---|---|
Sensitivity (%) | 0.800 | 0.680 |
Specificity (%) | 0.980 | 0.846 |
Youden’ index | 0.780 | 0.526 |
AUC(95%CI) | 0.945(0.920, 0.970) | 0.802(0.752, 0.852) |
Cut off value | 10.8 | 14.0 |
Positive predictive value (PPV) | 0.976 | 0.815 |
Negative predictive value (NPV) | 0.831 | 0.726 |