TABLE 1.

Clinical characteristics of the trauma patients

ID	Age (yr)	Gender	Transfusion	ISSa	Injury descriptionb	Antibiotic(s)
TP3	50	Female	None	16	Fall, acute head injury	Cefazolin
TP7	35	Male	RBC, plasma	26	Major trauma, lacerations of the liver and abdominal wall with a foreign body	Cefazolin/vancomycin/piperacillin
TP10	51	Male	Packed RBC, plasma, platelets	27	MVA, lacerations of liver, spleen, and kidney with large abdominal bleed, large scalp wound	Cefazolin
TP12	24	Female	RBC, plasma, platelets	22	MVA, open-fracture humerus, laceration of diaphragm, traumatic pneumothorax, traumatic brain injury, facial laceration	Cefazolin/gentamicin/penicillin G
TP15	56	Female	Leukoreduced RBC	27	MVA, tibia fracture, closed compression fracture L3 lumbar vertebra	Cefazolin/cefoxitin
TP17	22	Male	None	29	Blunt force trauma, liver laceration extension, mandible fracture, maxillary fracture	Clindamycin
TP18	51	Male	Plasma	38	MVA, closed fracture left humerus, intraparenchymal hemorrhage of brain, open fractures left distal radius/ulna	Cefazolin
TP19	23	Male	None	38	Motorcycle accident, diffuse axonal injury, laceration to right knee, pelvic fracture, bilateral radius fracture	Cefazolin

^aEach injury is allocated to one of six body regions (head/neck, face, chest, abdomen/pelvis, extremities, and skin/general) and is assigned an abbreviated injury scale (AIS) score from 1 to 6 (most severe). The AIS scores of the three most severely injured body regions are squared and added together to calculate the injury severity score (ISS) (2, 18).

^bMVA, motor vehicle accident.