Skip to main content

Table 6 Comparisons between open and closed pelvic fracture for the minor, moderate and severe WSES classifications (N = 44,163)

From: Accuracy of the WSES classification system for pelvic ring disruptions: an international validation study

Outcomes Open fracture Closed fracture p value
Minor (N = 37,785) N = 398 N = 37,387  
 Mortality (N, %) 14 (3.5%) 663 (1.8%) 0.009
 Infection (N, %) 13 (3.3%) 273 (0.7%) < 0.001
 AKI (N, %) 2 (0.5%) 127 (0.3%) 0.580
 LOS (day) 11.8 ± 14.6 7.0 ± 7.9 < 0.001*
 ICU LOS (day) 3.3 ± 7.3 0.7 ± 4.8 < 0.001*
Moderate (N = 3638) N = 268 N = 3370  
 Mortality (N, %) 30 (11.2%) 110 (3.3%) < 0.001
 Infection (N, %) 18 (6.7%) 70 (2.1%) < 0.001
 AKI (N, %) 4 (1.5%) 15 (0.4%) 0.022
 LOS (day) 16.6 ± 24.0 11.2 ± 12.0 < 0.001*
 ICU LOS (day) 6.8 ± 11.6 3.2 ± 7.5 < 0.001*
 Severe (N = 2740) N = 164 N = 2,576  
Mortality (N, %) 39 (23.8%) 252 (9.8%) < 0.001
 Infection (N, %) 13 (7.9%) 72 (2.8%) < 0.001
 AKI (N, %) 4 (2.4%) 14 (0.5%) 0.004
 LOS (day) 15.5 ± 18.9 10.8 ± 13.4 < 0.001*
 ICU LOS (day) 6.3 ± 9.7 4.1 ± 9.4 < 0.001*
  1. Numerical data: mean (standard deviation); Nominal data: N (percentage)
  2. WSES = World Society of Emergency Surgery, AKI = acute kidney injury, LOS = length of stay, ICU = intensive care unit
  3. Minor = WSES Grade I, Moderate = WSES Grade II or III, Severe = WSES Grade IV
  4. *Student t test, Chi-square test