Table 2: Validity of the variables (means and 95% CI) for various DLco cut-points for predicting mortality. The value in bold indicates the selected cut-point.

DLco Sensitivity Specificity PPV NPV
45 (%) 0.22
0.03 to 0.59
0.95
0.76 to 0.99
0.66
0.13 to 0.98
0.76
0.71 to 0.79
50 (%) 0.33
0.09 to 0.69
0.95
0.76 to 0.99
0.75
0.23 to 0.98
0.79
0.72 to 0.82
55 (%) 0.55
0.51 to 0.99
0.91
0.71 to 0.98
0.71
0.33 to 0.94
0.84
0.74 to 0.90
60 (%) 0.88
0.50 to 0.99
0.80
0.57 to 0.92
0.61
0.38 to 0.68
0.95
0.80 to 0.99
65 (%) 1.00
0.68 to 1.00
0.58
0.46 to 0.58
0.47
0.32 to 0.47
1.00
0.79 to 1.00


NPV= negative predictive value; PPV: positive predictive value. DLco: carbon monoxide diffusing capacity.