Table 2.
Predicted Value | FEV1 (n = 410) | FVC (n = 410) | FEF25–75% (n = 366) | TLC (n = 410) |
---|---|---|---|---|
≥80% | 348 (85) | 344 (84) | 263 (72) | 292 (71) |
70–79% | 34 (8) | 40 (10) | 53 (15) | 69 (17) |
60–69% | 10 (3) | 9 (2) | 31 (8) | 34 (8) |
<60% | 18 (4) | 17 (4) | 19 (5) | 15 (4) |
Definition of abbreviations: FEF25–75% = forced expiratory flow at 25–75% of vital capacity.
Note: Data represent number (%) of patients.