- Baseline patient characteristics.
| Characteristic | Total (n=137) |
|---|---|
| Age (years) | 63 (35,93) |
| Height (cm) | 163 (145,184) |
| Body weight (kg) | 64 (45,95) |
| Hospital stays (days) | 9 (1,20) |
| Gender | |
| Male | 71 (51.8) |
| Female | 66 (48.2) |
| Diagnosis | |
| Connective tissue-related lung disease | 42 (30.9) |
| Idiopathic interstitial pneumonia | 29 (21.3) |
| Granulomatous disease | 3 (2.2) |
| Unknown interstitial disease | 62 (45.6) |
| Oxygen inhalation in daily living | 42 (30.7) |
| Using crutches in daily living | 3 (2.2) |
| Oxygen inhalation in examinations | 2 (1.5) |
| Using crutches in examinations | 2 (1.5) |
| Blood-gas analysis | |
| PO2 (mmHg) | 79.2±14.4 |
| PCO2 (mmHg) | 38.9 (27.6,78.1) |
| FeNO (ppb) | 17.5 (5,69) |
| Pulmonary function | |
| Actual value of FVC (L) | 2.46±0.76 |
| Ratio of actual/predicted FVC, % | 80.46±21.25 |
| Actual value of FEV1 (L) | 1.97±0.57 |
| Ratio of actual/predicted FEV1, % | 80.32±19.40 |
| FEV1/FVC, % | 80.94±7.30 |
| TLC (L) | 4.00±1.00 |
| Ratio of actual/predicted TLC, % | 70.75 (35.0,112.0) |
| DLCO (mmoL/min.kPa) | 4.48±1.51 |
| Ratio of actual/predicted DLCO, % | 57.85±18.94 |
| Six-min walking test | |
| Predicted value (m) | 518.9±60.7 |
| Actual value (m) | 449 (169.5,694) |
| Actual value/predicted value, % | 85.7±17.6 |
| Predicted value – actual value | 73.9±95.1 |
PO2: partial pressure of oxygen, PCO2: partial pressure of carbon dioxide, FeNO: exhaled nitric oxide, FVC: forced vital capacity, FEV1: forced expiratory volume in 1 s, TLC: total lung capacity, DLCO: diffusing capacity of the lungs for carbon monoxide. Data are presented as median (min, max), mean±standard deviation, or n (%)