Table 4.
Multivariate logistic regression analysis for evaluation of independent risk factors for mortality in patients with laparotomy. (Patients without laparotomy were also analyzed as a control group.)
| Variables | p value* | Odds of mortality | 95% CI | |
|---|---|---|---|---|
| Lower | Upper | |||
| Laparotomy (+) (N = 10,987) | ||||
| Age | <0.001 | 1.034 | 1.027 | 1.042 |
| Male | 0.028 | 1.433 | 1.041 | 1.973 |
| SBP in ED (mmHg) | <0.001 | 0.987 | 0.984 | 0.990 |
| Pulse in ED (/min) | 0.006 | 1.006 | 1.002 | 1.010 |
| RR in ED (/min) | 0.801 | 0.998 | 0.982 | 1.014 |
| GCS in ED | <0.001 | 0.879 | 0.860 | 0.899 |
| Penetrating | 0.512 | 1.098 | 0.830 | 1.453 |
| Transportation time (min) | 0.007 | 1.000 | 0.999 | 1.000 |
| ED time (min) | 0.200 | 0.999 | 0.999 | 1.000 |
| ISS | <0.001 | 1.087 | 1.070 | 1.103 |
| Comorbidity | <0.001 | 0.572 | 0.441 | 0.740 |
| Use of transfusion | <0.001 | 2.347 | 1.815 | 3.036 |
| Obesity | 0.040 | 1.317 | 1.013 | 1.712 |
| Constant | <0.001 | – | – | – |
| Laparotomy (−) (N = 22,811) | ||||
| Age | <0.001 | 1.038 | 1.030 | 1.047 |
| Male | 0.176 | 1.254 | 0.904 | 1.739 |
| SBP in ED (mmHg) | <0.001 | 0.991 | 0.987 | 0.996 |
| Pulse in ED (/min) | 0.020 | 1.007 | 1.001 | 1.013 |
| RR in ED (/min) | 0.554 | 1.007 | 0.983 | 1.032 |
| GCS in ED | <0.001 | 0.909 | 0.885 | 0.933 |
| Penetrating | <0.001 | 2.872 | 1.780 | 4.632 |
| Transportation time (min) | 0.839 | 1.000 | 1.000 | 1.000 |
| ED time (min) | 0.973 | 1.000 | 1.000 | 1.000 |
| ISS | <0.001 | 1.065 | 1.044 | 1.086 |
| Comorbidity | 0.019 | 1.566 | 1.077 | 2.276 |
| Use of transfusion | <0.001 | 3.848 | 2.782 | 5.322 |
| Obesity | 0.831 | 1.037 | 0.746 | 1.441 |
| Constant | <0.001 | – | – | – |
*Multivariate logistic regression
SBP systolic blood pressure, ED emergency department, RR respiratory rate, GCS Glasgow coma scale, ISS injury severity score, CI confidence interval