Variable | HR (95% CI) | p-value |
Female | 0.38 (0.15–0.95) | 0.04 |
Age yrs | 1.02 (1.02–0.99) | 0.23 |
DL,CO % pred | 2.93 (0.20–41.9) | 0.43 |
Desaturation area | 1.05 (1.02–1.08) | 0.0006 |
6-month relative change in DA | 2.91 (1.51–5.60) | 0.001 |
Former or current smoker | 0.71 (0.28–1.79) | 0.43 |
FVC % pred | 0.35 (0.05–2.53) | 0.30 |
6-month relative change in FVC % pred | 1.57 (1.15–2.13) | 0.004 |
Analysis adjusted for age, diffusing capacity of the lung for carbon monoxide (DL,CO) % predicted (% pred), desaturation area (DA), 6-month relative change in DA, smoking history, forced vital capacity (FVC) % pred, and 6-month relative change in FVC. HR: hazard ratio; CI: confidence interval. #: n = 72.