Table 2.
Distribution of pre-transplant pulmonary function tests
| Never Smokers | Former Smokers | Current Smokers | ||
|---|---|---|---|---|
| PFT parameter | (N=530) (%) | (N=230) (%) | (N=85) (%) | p-value |
| Percent predicted FEV1 | 0.04 | |||
| ≥ 80% | 434 (82) | 180 (78) | 66 (78) | |
| 70–79% | 52 (10) | 27 (12) | 9 (11) | |
| 60–69% | 16 (3) | 10 (4) | 3 (4) | |
| < 60% | 9 (2) | 7 (3) | 4 (5) | |
| Percent predicted FVC | 0.57 | |||
| ≥ 80% | 456 (86) | 202 (88) | 74 (87) | |
| 70–79% | 39 (7) | 17 (7) | 7 (8) | |
| 60–69% | 9 (2) | 4 (2) | 0 | |
| < 60% | 7 (1) | 1 (0.5) | 1 (1) | |
| FEV1/FVC | ||||
| median (IQR) | 0.77 (0.73–0.82) | 0.75 (0.70–0.79) | 0.73 (0.68–0.79) | <0.0005 |
| Percent predicted TLC | 0.21 | |||
| ≥ 80% | 477 (90) | 213 (93) | 77 (91) | |
| 70–79% | 20 (4) | 8 (3) | 4 (5) | |
| 60–69% | 5 (1) | 0 | 0 | |
| < 60% | 7 (1) | 1 (0.5) | 0 | |
| Percent predicted DLCO | 0.0009 | |||
| ≥ 80% | 216 (41) | 95 (41) | 23 (27) | |
| 70–79% | 169 (32) | 67 (29) | 24 (28) | |
| 60–69% | 92 (17) | 38 (16) | 21 (25) | |
| < 60% | 37 (7) | 25 (11) | 14 (16) | |