Table 1.

Patient characteristics (n = 64)

Age (years old)	65.0 ± 18.5
Sex
Male	49 (75.6)
Female	15 (23.4)
BSA (m2)	1.62 ± 0.15
BMI (kg/m2)	22.1± 3.11
Mechanism
Blunt	61 (95)
Penetrating	3 (5)
RTS	6.35 ± 2.39
ISS	29.0 ± 13.9
Chest AIS	3.87 ± 0.64
Intubated at tube placement	34 (53)

BSA: body surface area, BMI: body mass index, RTS: Revised Trauma Score, ISS: Injury Severity Score, AIS: Abbreviated Injury Scale.

Values are shown as mean ± SD or number (%).