N=277 | |
Diagnosis, n/N (%) | |
Definite IPF | 257/277 (92.8) |
Probable IPF | 18/277 (6.5) |
Diagnostic tests, n/N (%) | |
HRCT | 270/277 (97.5) |
Chest X-ray | 120/277 (43.3) |
Bronchoalveolar lavage | 224/277 (80.9) |
Biopsy | 84/277 (30.3) |
Open surgical | 38/277 (13.7) |
VATS | 41/277 (14.8) |
Cryobiospy | 5/277 (1.8) |
Clinical characteristics at inclusion | |
Per cent predicted FVC,%* | |
Mean (SD) | 80.6 (19.9) |
Median (range) | 78 (33–154) |
Per cent predicted DLco, %† | |
Mean (SD) | 46.9 (13.8) |
Median (range) | 46 (19−106) |
6MWD,m‡ | |
Mean (SD) | 426.2 (130.8) |
Median (range) | 420.5 (90–805) |
GAP Index, n/N, % | |
I | 89/230 (38.7) |
II | 113/230 (40.8) |
III | 28/230 (10.1) |
*n=230.
†n=221.
‡n=92.
DLco, carbon monoxide diffusing capacity; FVC, forced vital capacity; GAP, Gender, Age, and Physiology; HRCT, high-resolution CT; IPF, idiopathic pulmonary fibrosis; 6MWD, 6 min walk distance; VATS, video-assisted thoracoscopic surgery.