Patient characteristics of 38 pulmonary nodules in 36 patients with IIP
| Characteristic | Finding |
| Age (year) | 64.9±7.3 |
| Sex (male:female) | 34:2 |
| Smoking (former:current:non) | 27:6:3 |
| Size (mm) | 16.3±4.7 |
| IIP type | |
| Usual interstitial pneumonia | 27 |
| Non-specific interstitial pneumonia | 5 |
| Others | 4 |