Table 2 Univariate and multivariate analyses for 60-day mortality in overall patient population
Variables | Univariate analysis | Multivariate analysis | ||||
|---|---|---|---|---|---|---|
HR (95% CI) | χ2 | P value | HR (95% CI) | χ2 | P value | |
Age (years) | 1.01 (1.00–1.02) | 6.03 | 0.01 |  |  |  |
Sepsis | 1.49 (1.05–2.12) | 5.31 | 0.02 |  |  |  |
Diabetes mellitus | 1.56 (1.23–2.33) | 7.22 | 0.006 | 1.43 (1.03–1.87) | 3.96 | 0.05 |
Coronary heart disease | 1.46 (1.04–2.07) | 4.69 | 0.03 |  |  |  |
Use of vasoactive drugs | 1.91 (1.41–2.55) | 13.6 | <0.001 | 1.56 (1.12–2.11) | 6.55 | 0.01 |
Mechanical ventilation | 1.41 (1.04–2.28) | 4.58 | 0.03 |  |  |  |
Serum creatinine (μmol/L) | 1.002 (1.001–1.003) | 13.1 | <0.001 |  |  |  |
Serum lactate (mmol/L) | 1.24 (1.08–1.43) | 6.15 | 0.01 | 1.15 (1.06–1.24) | 4.73 | 0.03 |
Global AGI grade (I/II vs. III/IV) | 1.78 (1.45–2.13) | 11.7 | <0.001 | 1.65 (1.28–2.12) | 7.10 | 0.008 |
APACHE II score | 1.06 (1.04–1.08) | 31.0 | <0.001 | 1.04 (1.02–1.06) | 12.1 | <0.001 |