Table 1.
Baseline Characteristics of the Subjects
| IPF (n = 60) | Control Subjects (n = 20) | |
|---|---|---|
| Age, yr | 67.8 ± 8 | 66.0 ± 10.0 |
| Female sex, n (%) | 39 (65) | 12 (60) |
| Smoker (ever), n (%) | 41 (68) | 12 (60) |
| FVC, % predicted | 73.4 ± 21 | NR |
| FEV1, % predicted | 74.3 ± 19 | NR |
| Ratio of FEV1 to FVC | 81.2 ± 7 | NR |
| DlCO, % | 40.9 ± 16 | NR |
| O2 saturation, % | 95 ± 2 | 97 ± 4 |
| 6-min-walk distance, m | 321 ± 134 | NR |
Definition of abbreviations: DlCO = diffusing capacity of the lung for carbon monoxide; IPF = idiopathic pulmonary fibrosis; NR = not recorded.
Details are provided for subjects with IPF and healthy control subjects. Data are mean ± SD unless otherwise indicated.