Table 1.
Comparisons of characteristics between non-survivors and survivors and independent risk factors for mortality (multivariate logistic regression) in abdominal trauma patients who received laparotomy (N = 10,987)
| Bivariate analysis | Multivariate logistic regression | |||
|---|---|---|---|---|
| Non-survivors (N = 323) | Survivors (N = 10,664) | p value | Odds of mortality‡ (95% CI) | |
| Age (years) | 44.4 (44.1–47.7) | 34.2 (33.9–34.5) | <0.001* | 1.029 (1.021–1.036) |
| Male (%) | 80.8 (76.5–85.1) | 79.5 (79.0–80.6) | 0.564† | – |
| SBP in ED (mmHg) | 92.4 (86.7–98.1) | 125.5 (124.9–126.1) | <0.001* | 0.987 (0.984–0.990) |
| Pulse in ED (/min) | 91.5 (86.7–96.3) | 93.5 (93.0–93.9) | 0.029* | 1.005 (1.001–1.009) |
| RR in ED (/min) | 16.7 (15.4–17.7) | 19.4 (19.2–19.5) | <0.001* | 0.999 (0.983–1.016) |
| GCS in ED | 9.0 (9.0–10.2) | 14.1 (14.0–14.1) | <0.001* | 0.897 (0.860–0.898) |
| Penetrating (%) | 54.5 (49.1–59.9) | 61.5 (60.6–62.4) | 0.011† | 1.230 (0.938–1.613) |
| Transportation time (min) | 172.5 (127.7–217.3) | 249.0 (237.4–260.6) | 0.780* | – |
| ED time (min) | 79.4 (64.8–94.0) | 114.7 (110.6–118.7) | <0.001* | 0.999 (0.999–1.000) |
| Comorbidity (%) | 52.3 (46.9–57.7) | 54.9 (54.0–55.8) | 0.353† | – |
| Use of transfusion (%) | 61.9 (56.6–67.2) | 24.0 (23.2–24.8) | <0.001† | 2.248 (1.742–2.901) |
| ISS | 16 (15) | 9 (9) | <0.001* | 1.086 (1.070–1.102) |
| BMI | 28.4 (27.7–29.2) | 26.9 (26.8–27.1) | <0.001* | 1.025 (1.005–1.045) |
| Obesity (%) | 33.1 (28.0–38.2) | 26.2 (25.4–27.0) | 0.005† | – |
Numerical data: mean (95% CI: lower–upper) (ISS was presented as the median and interquartile range)
Nominal data: percentage (95% CI: lower–upper)
*Mann–Whitney U test, †Chi-square test, ‡Multivariate logistic regression (CI not including or crossing 1.000 was considered statistically significant)
SBP systolic blood pressure, ED emergency department, RR respiratory rate, GCS Glasgow coma scale, ISS injury severity score, BMI body mass index, CI confidence interval