Table 3.
Multivariate Cox Hazard Model to Identify Independent Predictors of All-Cause Mortality
| Variables | Hazard Ratio | 95% CI | P-value |
|---|---|---|---|
| Demographic Variables | |||
| Age, years | 1.05 | 1.03–1.07 | <0.001 |
| Sex, male | 1.67 | 0.94–2.94 | 0.080 |
| Body mass index, kg/m2 | 0.95 | 0.89–0.99 | 0.031 |
| Comorbidities | |||
| Malignancy | 2.94 | 2.15–4.02 | <0.001 |
| Cerebral vascular disease | 1.28 | 0.82–1.99 | 0.274 |
| Coronary artery occlusive disease | 1.58 | 1.10–2.26 | 0.013 |
| Chronic kidney disease | 1.38 | 0.84–2.25 | 0.205 |
| Diabetes mellitus | 1.29 | 0.88–1.88 | 0.187 |
| Hypertension | 1.10 | 0.78–1.56 | 0.570 |
| Pulmonary Function Test Variables | |||
| GOLD stage, as one stage increases | 1.26 | 1.02–1.56 | 0.036 |
| FIB-4 | 1.15 | 1.03–1.27 | 0.010 |
Abbreviations: CI, confidence interval; FIB-4, fibrosis-4 index; GOLD, global initiative for chronic obstructive lung disease.