Characteristic | Number of cases | |
---|---|---|
Stable | Progressive | |
All cases | 30 | 28 |
Age (years) | Â | Â |
 Mean | 68 ± 8 | 70 ± 9 |
Sex | Â | Â |
 Male | 19 | 17 |
 Female | 11 | 11 |
Smoking history | Â | Â |
 Never | 13 | 8 |
 Ex-smoker | 16 | 20 |
Current | 1 | – |
FVC (% predicted) | 82 ± 20 | 73 ± 15 |
DLCO (% predicted) | 53 ± 18 | 37 ± 14 |