Table 1 Demographic and spirometric characteristics of patients with idiopathic interstitial pneumonia and control subjects
| Characteristics | IPF/UIP(n = 25) | COP/OP(n = 20) | NSIP(n = 20) | Control(n = 20) |
| Sex (M/F) | 18/7 | 12/8 | 11/9 | 10/10 |
| Age (years) | 65 (43–72) | 50 (38–62) | 60 (41–68) | 36 (29–60) |
| Smokers/non-smokers | 21/4 | 7/13 | 12/8 | 13/7 |
| FVC (% predicted) | 66 (3)* | 78 (4)* | 71 (3)* | 101 (12) |
| TLC (% predicted) | 58 (4)* | 77 (3)* | 69 (4)* | 99 (11) |
| Tlco (% predicted) | 48 (6)* | 68 (5)* | 61 (4)* | 88 (6) |
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Values expressed as mean (SD) and age as median (range).
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*Statistical significance between disease groups and control group assessed with t test (p<0.001).
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COP, cryptogenic organising pneumonia; FVC, forced vital capacity; IPF, interstitial pulmonary fibrosis; NSIP, non-specific interstitial pneumonia; OP, organising pneumonia; TLC, total lung capacity; Tlco, lung carbon monoxide transfer factor; UIP, usual interstitial pneumonia.
