Mean (SD) values of lung function parameters and percentages of patients with negative SD scores and clearly pathological SD scores
| Mean (SD) value | % of patients with negative values (0 to >–1.64) | % of patients with pathological values (⩽–1.64) | |
|---|---|---|---|
| FVC | −0.73 (1.40) | 52 | 23 |
| Tlco | −0.92 (1.79) | 48 | 28 |
| FEV1 | −0.29 (1.45) | 60 | 10 |
| FEV1/FVC | 0.39 (1.05) | 35 | 0 |
FVC = forced vital capacity; Tlco = carbon monoxide transfer factor; FEV1 = forced expiratory volume in one second.