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. Author manuscript; available in PMC: 2018 Apr 1.
Published in final edited form as: J Pediatr Surg. 2016 Nov 23;52(4):628–632. doi: 10.1016/j.jpedsurg.2016.11.037

Table 4.

Operative interventions for patients with severe injury to body region by body mass index category

Normal weight Overweight Obese Morbidly obese P value
Exploratory laparotomy
 (if severe abdominal injury)		 18.8% 20.6% 18.6% 18.3% 0.39
Tube thoracostomy
 (if severe chest injury)		 20.3% 19.3% 17.8% 17.5% 0.01
Thoracotomy
 (if severe chest injury)		 1.5% 1.4% 1.0% 1.3% 0.28
Craniotomy/craniectomy
 (if severe head injury)		 7.2% 8.0% 7.7% 7.2% 0.36
Spine fixation
 (if severe spine injury)		 26.5% 26.3% 23.6% 27.2% 0.50
Tibia, fibula, patella fixation
 (if severe lower extremity injury)		 16.7% 17.4% 16.5% 15.8% 0.52
Femur fixation
 (if severe lower extremity injury)		 45.0% 46.9% 47. 8% 46.5% 0.03
Humerus, radius, ulna fixation
 (if severe upper extremity injury)		 60.2% 58.0% 58.0% 61.2% 0.28

Within each category, the denominator is patients of a given BMI category who sustained a severe (AIS ≥ 3) injury to the body region of the operation. For example, for exploratory laparotomy, the denominator for each BMI category is patients with AIS ≥ 3 abdominal injuries.