Table 3 Association between risk factors and 30-day mortality risk: results of multivariable analyses.
Model | Unit | Hazard ratio (95% CI) | P-value |
|---|---|---|---|
Model I | |||
Gender | Man | 1.61 (1.18–2.20) | 0.003 |
Respiratory rate (breaths/min) | +5 | 1.24 (1.12–1.37) | <0.001 |
Peripheral oxygen saturation (%) | −5 | 1.17 (1.07–1.27) | <0.001 |
Duration of illness (days) | +5 | 0.67 (0.51–0.88) | 0.004 |
Glasgow Coma Score | −1 | 1.19 (1.13–1.25) | <0.001 |
Admitted intensive care unit | Yes | 5.57 (3.73–8.31) | <0.001 |
Serum urea (mmol/L) | +5 | 1.12 (1.05–1.20) | 0.001 |
Glycaemia (mmol/L) | +5 | 1.19 (1.05–1.35) | 0.005 |
Serum albumin (g/L) | −5 | 1.31 (1.18–1.47) | <0.001 |
ALT (U/L) | +20 | 1.02 (1.01–1.03) | <0.002 |
Model II | |||
Gender | Man | 1.53 (1.13–2.09) | 0.007 |
Respiratory rate (breaths/min) | +5 | 1.25 (1.13–1.38) | <0.001 |
Peripheral oxygen saturation (%) | −5 | 1.17 (1.08–1.28) | <0.001 |
Duration of illness (days) | +5 | 0.67 (0.51–0.87) | 0.003 |
Glasgow Coma Score | −1 | 1.18 (1.12–1.24) | <0.001 |
Admitted intensive care unit | Yes | 6.59 (4.45–9.74) | <0.001 |
Serum urea (mmol/L) | +5 | 1.13 (1.06–1.20) | <0.001 |
Serum albumin (g/L) | −5 | 1.30 (1.17–1.45) | <0.001 |
Model III | |||
Gender | Man | 1.59 (1.17–2.18) | 0.003 |
Respiratory rate (breaths/min) | +5 | 1.21 (1.09–1.34) | <0.001 |
Peripheral oxygen saturation (%) | −5 | 1.17 (1.07–1.27) | <0.001 |
Duration of illness (days) | +5 | 0.66 (0.50–0.87) | 0.003 |
Glasgow Coma Score | −1 | 1.19 (1.13–1.25) | <0.001 |
Admitted intensive care unit | Yes | 5.60 (3.77–8.31) | <0.001 |
Serum urea | +5 | 1.11 (1.04–1.19) | 0.003 |
Glycaemia | +5 | 1.18 (1.04–1.33) | 0.008 |
Serum albumin | −5 | 1.26 (1.12–1.42) | <0.001 |
ALT | +20 | 1.02 (1.01–1.03) | <0.001 |
hsCRP | +5 | 1.12 (1.01–1.24) | 0.029 |
