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Table 5 Relationship between surgical resource consumption, sex, age, vital signs and Red Cross Wound Score (RCWS)

From: Predicting surgical resource consumption and in-hospital mortality in resource-scarce conflict settings: a retrospective study

Surgical resource consumption Univariate analysis
Complete cases
Total = 834
Logistic regression analysis
Complete cases
Total = 834
Low
Total = 472
n (%)
Higha
Total = 362
n (%)
P value All confounders
1 = Higha
Odds ratio (95% CI)
P value Final model (Wald)
1 = Higha
Odds ratio (95% CI)
P value
Sex    1.000     
 Male 418 (88.6) 320 (88.4)   1    
 Female 54 (11.4) 42 (11.6)   1.14 (0.68–1.90) 0.626   
Age    0.710     
 15–49 years 433 (91.7) 329 (90.9)   1    
  > 49 39 (8.3) 33 (9.1)   1.23 (0.70–2.17) 0.466   
Time since injury    0.152     
 0–6 h 15 (3.2) 21 (5.8)   1    
 7–24 h 203 (43.0) 159 (43.9)   0.68 (0.30–1.54) 0.352   
  > 24 h 254 (53.8) 182 (50.3)   0.66 (0.29–1.52) 0.327   
Systolic blood pressure    0.004     
  > 89 mmHg 464 (98.3) 341 (94.2)   1    
 76–89 5 (1.1) 10 (2.8)   1.16 (0.33–4.11) 0.931   
 0–75 3 (0.6) 11 (3.0)   1.65 (0.44–6.20) 0.821   
Respiratory rate    0.446     
 10–29/min 458 (97.0) 347 (95.9)   1    
  ≤ 9    
  ≥ 30 14 (3.0) 15 (4.1)   0.88 (0.37–2.09) 0.772   
Glasgow Coma Scale    0.077     
 13–15 465 (98.5) 347 (95.8)   1    
 9–12 4 (0.9) 10 (2.8)   1.09 (0.31–3.87) 0.896   
 6–8 2 (0.4) 4 (1.1)   1.60 (0.22–11.65) 0.644   
  ≤ 5 1 (0.2) 1 (0.3)   0.84 (0.05–15.76) 0.906   
RCWS grade    < 0.001     
 1 (simple) 266 (56.4) 83 (22.9)   1   1  
 2 (medium) 185 (39.2) 178 (49.2)   2.60 (1.81–3.74) < 0.001 2.63 (1.84–3.76) < 0.001
 3 (large) 21 (4.4) 101 (27.9)   11.60 (6.61–20.36) < 0.001 11.94 (6.85–20.80) < 0.001
RCWS type    < 0.001     
 Soft tissue 220 (46.6) 67 (18.5)   1   1  
 Fracture 164 (34.8) 180 (49.7)   2.39 (1.62–3.54) < 0.001 2.32 (1.58–3.41) < 0.001
 Threatening life 59 (12.5) 45 (12.4)   2.16 (1.27–3.67) 0.005 2.20 (1.31–3.72) 0.003
 Threatening life/limb 29 (6.1) 70 (19.4)   4.67 (2.61–834) < 0.001 4.80 (2.77–8.33) < 0.001
Additional severe injuriesb    < 0.001     
 No 439 (93.0) 288 (79.6)   1   1  
 Yes 33 (7.0) 74 (20.4)   2.90 (1.83–4.89) < 0.001 3.00 (1.85–4.88) < 0.001
  1. aDefined as ≥3 surgical procedures under anesthesia or ≥ 3 blood transfusions or limb amputation; bCorresponding to Abbreviated Injury Score ≥ 2