HR(95% CI) | P-value | |
---|---|---|
Age | 1.05* (1.02 - 1.08) | < 0.001 |
Sex | 0.68** (0.44 - 1.05) | 0.08 |
BMI (kg/m2) | 0.98 (0.94 - 1.02) | 0.32 |
PaO2 kPa (air) | 0.85 (0.70 - 1.02) | 0.09 |
PaCO2 kPa (air) | 0.84 ( 0.64 - 1.09) | 0.19 |
LTOT | 2.33 (1.44 - 3.77) | < 0.001 |
COPD GOLD stage | ||
1 (FEV1 ≥ 80% predicted) | 1.0 (ref.) | |
2 (FEV1 50–80% predicted) | 1.90 (0.57 - 6.35) | 0.30 |
3 (FEV1 30–50% predicted) | 3.41 (1.30 - 11.25) | 0.04 |
4 (FEV1 < 30% predicted) | 1.84 (0.47 - 7.14) | 0.38 |