Table 3 Crude and adjusted hazard ratios (HRs) and 95% confidence intervals for 1-year mortality. See text for the preoperative risk factors
Group | HR, crude (N = 6282) | P | HR, adjusted for sex and Apache II and SOFA scores (N = 6282) | P | HR, adjusted for age, sex, and preoperative risk factors (N = 5833) | P |
|---|---|---|---|---|---|---|
SvO2 > 60% at admission + at 4 h | 1 | < 0.001 | 1 | < 0.001 | 1 | < 0.001 |
SvO2 > 60% at admission, < 60% at 4 h | 1.69 [1.17–2.42] | 0.005 | 1.46 [1.01–2.1] | 0.043 | 1.70 [1.15–2.51] | 0.007 |
SvO2 < 60% at admission, > 60% at 4 h | 2.66 [1.8–3.93] | < 0.001 | 2.05 [1.38–3.04] | < 0.001 | 1.89 [1.19–2.96] | 0.006 |
SvO2 < 60% at admission + at 4 h | 4.18 [3.1–5.65] | < 0.001 | 2.98 [2.18–4.06] | < 0.001 | 3.19 [2.28–4.45] | < 0.001 |