Table 1.

Demographics by study period

Covariate, % (n)	Prepandemic March 11, 2019–June 30, 2019 n=3862	Pandemic March 11, 2020–June 30, 2020 n=3446	P value
Mean (SD) age, years	54.4 (22)	53.9 (21)	0.32
Female sex	42.0 (1621)	41.4 (1427)	0.63
White race	75.8 (2926)	74.7 (2575)	0.43
Full/partial trauma activation	16.0 (619)	16.3 (560)	0.80
ED disposition: operating room	9.6 (371)	10.0 (344)	0.59
ED SBP <90 mm Hg	4.3 (164)	4.7 (163)	0.32
Injury severity score ≥16	17.7 (685)	18.1 (625)	0.66
Severe injury, AIS ≥3
Head trauma	14.9 (575)	15.6 (539)	0.37
Thoracic trauma	13.0 (503)	13.7 (471)	0.42
Abdomen/pelvic trauma	3.2 (125)	3.3 (114)	0.86
Upper extremity trauma	1.2 (45)	1.6 (55)	0.11
Lower extremity trauma	18.1 (698)	18.8 (647)	0.44
In-hospital mortality	3.2 (125)	4.7 (163)	0.001
Hospital LOS, median (IQR)	3 (1.2–6)	3 (1–5)	0.02
ICU LOS, median (IQR)	2 (0–3)	1 (0–3)	0.002

Bolding denotes statistical significance with p<0.05.

AIS, Abbreviated Injury Scale; ED, emergency department; ICU, intensive care unit; LOS, length of stay; SBP, systolic blood pressure.;