Table 5.
Regression analysis of parameters that may be associated with mortality
| Parameters | Univariate Regression Analysis | Multivariate Regression Analysis* | ||||
|---|---|---|---|---|---|---|
| B | p | OR (%95 CI) | B | p | OR (%95 CI) | |
| Age, years | 0.025 | < 0.001 | 1.03 (1.01–1.04) | - | - | - |
| Gender, Male | 0.595 | 0.002 | 1.81 (1.24–2.65) | 0.645 | 0.010 | 1.91 (1.17–3.11) |
| Hemoglobin (g/dL) | -0.298 | < 0.001 | 0.74 (0.68–0.81) | -0.927 | < 0.001 | 0.40 (0.24–0.66) |
| Hematocrit (%) | -0.088 | < 0.001 | 0.92 (0.89–0.94) | - | - | - |
| PT, INR | 0.983 | < 0.001 | 2.67 (1.87–3.82) | 0.669 | 0.001 | 1.95 (1.34–2.85) |
| aPTT, sec | 0.052 | < 0.001 | 1.05 (1.03–1.08) | - | - | - |
| pH < 7.30 | 2.200 | < 0.001 | 9.03 (5.54–14.72) | 1.391 | < 0.001 | 4.02 (2.18–7.42) |
| Lactate (mg/dL) | 0.240 | < 0.001 | 1.27 (1.18–1.37) | - | - | - |
|
Severe Hypocalcemia (iCa < 0.9 mmol/L) |
1.367 | < 0.001 | 3.92 (2.46–6.28) | 0.665 | 0.047 | 1.95 (0.96–3.96) |
|
Mild hypocalcemia† (iCa < 1.12 mmol/L) |
0.115 | 0.532 | 1.12 (0.78–1.61) | - | - | - |
| Blood Transfusion, Yes | 1.101 | < 0.001 | 3.01 (1.95–4.64) | - | - | - |
Dependent Variable: Mortality; Hosmer and Lemeshow p = 0.253; Cox&Snell R2 = 0.126, Nagelkerke R2 = 0,245
*Backward stepwise logistic regression with p>0.10 removal criteria. Variables with p<0.20 in univariate analysis were included in the initial model
†Not included in multivariate model due to non-significance in univariate analysis (p>0.20)
OR: Odds Ratio, CI: Confidence Interval, PT: Protrombin Time, aPTT: Activated Partial Thromboplastin Time, iCa: Ionized Calcium