Demographics, baseline clinical data and selected pulmonary function indices in idiopathic pulmonary fibrosis(IPF) and non-specific interstitial pneumonia (NSIP) patients
| IPF | NSIP | |
| Subjects n | 84 | 72 |
| Males | 69 | 42 |
| Females | 15 | 30 |
| Age yrs* | 57.4±8.50 | 50.9±9.9 |
| Smokers n* | ||
| Ever | 62 | 36 |
| Never | 22 | 35 |
| DL,CO % pred | 41.90±12.85 | 43.80±15.1 |
| FVC % pred | 72.66±18.73 | 71.5±22.5 |
| Treated | 83 (99) | 70 (97) |
| Combination | 57 (68) | 49 (68) |
| Prednisolone | 26 (31) | 21 (29) |
| Not treated | 1 (1) | 2 (3) |
| Unknown | 0 (0) | 1 (1) |
| CPI | 50.32±11.3 | 48.3±18.7 |
| Deaths* | 68 (84) | 32 (44) |
| Median survival months | 23 | 90 |
Data are presented as mean±sd or n (%), unless otherwise stated. IPF patients were slightly older with decreased survival and were more likely to be ever smokers and male, otherwise the two disease cohorts had comparable baseline lung function and treatment rates. DL,CO: diffusing capacity of the lung for carbon monoxide; % pred: % predicted; FVC: forced vital capacity; CPI: composite physiological index. *: p<0.05.