Table 4 Operating characteristics of the prevalences shown in a.
From: Prediction of BOS by the single-breath nitrogen test in double lung transplant recipients
Dimension | Specificity (%) | Sensitivity (%) | Positive predictive value (%) | Negative predictive value (%) | ||||
|---|---|---|---|---|---|---|---|---|
BOS | BOS 0-p | BOS | BOS + BOS 0-p | BOS | BOS + BOS 0-p | |||
FEV1 | % basal | 90 | 100 | 100 | 57 | 61 | 100 | 100 |
FVC | % basal | 96 | 77 | 17 | 71 | 72 | 97 | 96 |
N2 slope | % basal | 95 | 52 | 43 | 52 | 57 | 95 | 94 |
FEV1 | % pred. | 95 | 67 | 0 | 63 | 63 | 96 | 94 |
FVC | % pred. | 95 | 29 | 0 | 43 | 43 | 92 | 90 |
N2 slope | % pred. | 93 | 96 | 100 | 57 | 63 | 100 | 100 |