| Variable | Univariable analysis | Multivariable analysis | ||
|
| Odds ratio (95%CI) | P-value* | Odds ratio (95%CI) | P-value* |
| Age (years) (n = 269) | ||||
| 41 - 50 | 1.00 (Reference) | - | 1.00 (Reference) | - |
| 51 - 60 | 1.31 (0.4 - 4.8) | 0.681 | 1.22 (0.3 - 4.5) | 0.766 |
| 61 - 70 | 0.79 (0.2 - 3.0) | 0.728 | 0.74 (0.2 - 2.8) | 0.662 |
| 71 - 80 | 2.21 (0.7 - 7.4) | 0.198 | 1.92 (0.6 - 6.6) | 0.300 |
| >80 | 0.98 (0.2 - 5.8) | 0.978 | 0.89 (0.1 - 5.4) | 0.899 |
| Age >70 years | 1.86 (0.9 - 4.0) | 0.109 | 1.71 (0.8 - 3.7) | 0.178 |
| Sex (n = 269) | ||||
| Female | 1.00 (Reference) | - | 1.00 (Reference) | - |
| Male | 1.08 (0.5 - 2.3) | 0.831 | 1.30 (0.6 - 2.9) | 0.509 |
| Charlson co-morbidity score (n = 269) | ||||
| 0 | 1.00 (Reference) | - | 1.00 (Reference) | - |
| 1 - 2 | 1.24 (0.5 - 2.9) | 0.621 | 1.05 (0.4 - 2.6) | 0.922 |
| 3 - 4 | 1.65 (0.5 - 5.0) | 0.375 | 1.26 (0.4 - 4.2) | 0.705 |
| ≥ 5 | - | - | - | - |
| BMI category: (n = 243) | ||||
| Underweight (<18.5) | 1.00 (Reference) | - | 1.00 (Reference) | - |
| Normal (18.5 - 25) | 3.16 (1.3 - 7.5) | 0.009 | 3.28 (1.3 - 8.0) | 0.009 |
| Overweight (>25) | - | - | - | - |
| FEV1 category (n = 210) | ||||
| <60% | 1.00 (Reference) | - | 1.00 (Reference) | - |
| 60 - 80% | 0.40 (0.1 - 1.8) | 0.237 | 0.34 | 0.176 |
| >80% | 0.57 (0.1 - 2.2) | 0.416 | 0.38 | 0.210 |
| FVC/FEV1% category (n = 206) | ||||
| <60% | 1.00 (Reference) | - | 1.00 (Reference) | - |
| 60 - 80% | 1.07 (0.3 - 4.0) | 0.918 | 0.79 (0.2 - 3.1) | 0.739 |
| >80% | 0.69 (0.2 - 3.2) | 0.639 | 0.48 (0.1 - 2.4) | 0.377 |
| DLCO% category (n = 202) | ||||
| <60% | 1.00 (Reference) | - | 1.00 (Reference) | - |
| 60 - 80% | 0.72 (0.2 - 2.2) | 0.566 | 0.65 (0.2 - 2.0) | 0.452 |
| >80% | 0.44 (0.1 - 1.4) | 0.166 | 0.35 (0.1 - 1.3) | 0.107 |