Table 3. Association of BAR with 30-day mortality.
| Exposure | Non-adjusted | Adjust I | Adjust II | |||||
|---|---|---|---|---|---|---|---|---|
| HR (95% CI) | P value | HR (95% CI) | P value | HR (95% CI) | P value | |||
| BUN | 1.01 (1.01, 1.01) | <0.001 | 1.01 (1.00, 1.01) | <0.0001 | 1.00 (1.00, 1.01) | <0.001 | ||
| Albumin | 0.77 (0.72, 0.82) | <0.001 | 0.76 (0.71, 0.81) | <0.0001 | 0.87 (0.81, 0.94) | <0.001 | ||
| BAR per 1sd | 1.02 (1.01, 1.02) | <0.001 | 1.02 (1.01, 1.02) | <0.0001 | 1.01 (1.01, 1.02) | <0.001 | ||
| BAR tertile | ||||||||
| Low (ref) | 1.0 | 1.0 | 1.0 | |||||
| Middle | 1.39 (1.22, 1.59) | <0.001 | 1.24 (1.08, 1.42) | 0.0024 | 1.03 (0.89, 1.18) | 0.71 | ||
| High | 1.79 (1.57, 2.03) | <0.001 | 1.60 (1.40, 1.82) | <0.0001 | 1.28 (1.10, 1.49) | 0.002 | ||
| BAR categorical | ||||||||
| ≤11.76 mg/g (ref) | 1.0 | 1.0 | 1.0 | |||||
| >11.76 mg/g | 1.54 (1.39, 1.70) | <0.001 | 1.45 (1.31, 1.60) | <0.0001 | 1.29 (1.15, 1.45) | <0.001 | ||
Adjusted I for age, gender and ethnicity. Adjusted II for age, gender and ethnicity, malignant cancer, severe liver disease, creatine, WBC, platelets, SOFA, mechanical ventilation and vasoactive use. BAR, blood urea nitrogen-to-albumin ratio; HR, hazard ratio; CI, confidence interval; BUN, blood urea nitrogen; ref, reference; WBC, white blood cell; SOFA, sequential organ failure assessment.