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Table 4 Association of variables with an unfavorable outcome in univariate analysis, multivariate analysis, and multivariate analysis without CT variables

From: Predictive value of a false-negative focused abdominal sonography for trauma (FAST) result in patients with confirmed traumatic abdominal injury

Variable Univariate OR (95% CI) P value Multivariate OR (95% CI) P value Multivariate OR without CT variables (95% CI) P value
Age 1.01 (0.99–1.03)d 0.183     
Male gender 0.91 (0.34–2.39) 0.850     
Code red level of urgencya 2.14 (0.79–5.77)      
Blunt abdominal trauma 0.28 (0.01–4.79) 0.385     
Extra-abdominal injury 0.99 (0.32–3.09) 0.995     
Low hemoglobin levelb 1.48 (0.55–3.97)e 0.428     
Heart rate 1.00 (0.98–1.028)f 0.723     
Systolic blood pressure 0.97 (0.95–0.99)g 0.034 0.98 (0.96–1.01)g 0.270 0.98 (0.95–1.00)g 0.090
Shock index classification 1.89 (1.01–3.55)h 0.046     
False-negative FAST 0.24 (0.07–0.77) 0.017 0.44 (0.12–1.57) 0.208 0.28 (0.08–0.93) 0.038
Contrast extravasation on CTc 7.17 (2.24–22.97) 0.001 4.64 (1.33–16.15) 0.016   
Free intra-abdominal fluid on CT 1.53 (0.31–7.61) 0.597     
  1. Significant p values (p < 0.05) are shown in italics
  2. CI confidence interval, OR odds ratio
  3. aSix cases missing for this variable
  4. bOne case missing for this variable
  5. cTwo cases missing for this variable
  6. dPer year increase
  7. ePer mmol/L increase
  8. fPer beat per minute increase
  9. gPer mmHg increase
  10. hFor each higher class