Table 2 Pulmonary function parameters and prognosis indices according to dust exposure at baseline and 12 month treatment
Variablesa | Exposed (n = 46)b | Not exposed (n = 43)b | ||
|---|---|---|---|---|
Baseline assessment | 12-month assessment | Baseline assessment | 12-month assessment | |
Mean FEV1, L (SD) | 2.2 (0.5) | 2.1 (0.5) | 2.1 (0.6) | 2.1 (0.6) |
Mean FEV1, % predicted (SD) | 89.9 (21.2) | 86.8 (19.9) | 84.3 (20.3) | 80.8 (19.2) |
Mean FVC, L (SD) | 2.6 (0.6) | 2.5 (0.6) | 2.5 (0.8) | 2.4 (0.8) |
Mean FVC, % predicted (SD) | 84.0 (19.7) | 80.5 (17.8) | 76.7 (18.5) | 73.7 (18.6) |
Mean DLCO, % predicted (SD) | 49.4 (14.7) | 44.8 (18.0) | 47.7 (12.2) | 45.6 (13.3) |
Mean TLC, L (SD) | 4.5 (1.1) | 4.3 (1.1) | 4.2 (1.2) | 4.1 (1.1) |
Mean TLC, % predicted (SD) | 76.1 (16.9) | 71.4 (15.7) | 71.8 (14.6) | 67.6 (15.9) |
GAP score, % | ||||
- 0–3 (IPF stage I) | 40.9 | 31.8 | 40.5 | 36.6 |
- 4–5 (IPF stage II) | 47.7 | 47.7 | 52.4 | 46.3 |
- 6–8 (IPF stage III) | 11.4 | 20.5 | 7.1 | 17.1 |
Mean GAP score (SD) | 3.8 (1.3) | 4.0 (1.5) | 3.7 (1.2) | 4.0 (1.5) |
Mean IPF stage (SD) | 1.7 (0.7) | 1.9 (0.7) | 1.7 (0.6) | 1.8 (0.7) |
Mean CPI score (SD) | 44.9 (12.3) | 50.1 (15.1) | 47.4 (9.9) | 49.1 (11.1) |