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Demographics
| No Bronchoscopy (n = 391) | Bronchoscopy (n = 223) | P Value | |
|---|---|---|---|
| Age, yr, mean (SD) | 71.8 (8.3) | 67.8 (8.1) | <0.001 |
| Sex, M, n (%) | 302 (77.2) | 170 (76.2) | 0.776 |
| Smoking history, ever/current, n (%) | 276 (70.6) | 141 (63.2) | 0.06 |
| FVC, %, mean (SD) | 76.3 (18.1) | 77.8 (18.2) | 0.591 |
| DlCO, %, mean (SD) | 48.5 (17.6) | 47.6 (14.1) | 0.79 |
| FEV1/FVC, mean (SD) | 79.8 (7.8) | 79.6 (7.4) | 0.71 |
