Table 4.
Pulmonary function testing after stratification on HRCT pattern.
| TLC% | RV% | FVC% | FEV-1% | FEV-1/FVC | DLCO% | |
|---|---|---|---|---|---|---|
| Isolated airways disease (n =40) | 112 (59–165) | 218 (79–340) | 75 (45–126) | 66 (19–115) | 72 | 74 (37–100) |
| Isolated ILD (n =10) | 88 (66–100) | 111 (99–166) | 72 (46–88) | 76 (46–96) | 85 | 43 (25–67) |
| Airways disease and ILD (n =19) | 80 (59–142) | 145 (84–236) | 61 (46–100) | 69 (53–105) | 84 | 46 (21–92) |
| Combined pulmonary fibrosis with emphysema (n =5) | 94 (88–98) | 104 (90–143) | 88 (77–109) | 92 (83–112) | 76 | 27 (22–56) |
TLC=total lung capacity, RV=residual volume, FVC=forced vital capacity, FEV-1=forced expiratory volume in 1 s, DLco=diffusing capacity for carbon monoxide, ILD=interstitial lung disease, and HRCT=high resolution computed tomography.