Table 1.

Demographic data of patients transported to the three hubs

	COVID-19	no COVID-19	P value
Total trauma transported by EMS	744	1150
Total transported to the hubs [n (%)]	345 (46.4)	325 (28.3)	0.001*
Male [n (%)]	262 (75.9)	248 (76.3)	0.92
Age [median (IQR)]	48 (34-64)	43.0 (27-62)	0.017*
Penetrating [n (%)]	32 (9.3)	17 (5.2)	0.063
Triage code 1 [n (%)]	103 (29.9)	111 (34.2)	0.267
Triage code 2 [n (%)]	235 (68.1)	201 (61.8)	0.105
Triage code 3[n (%)]	7 (2.0)	13 (4.0)	0.204
Admitted [n (%)]	266 (77.1)	237 (72.9)	0.32
ISS (of admitted pts) [median (IQR)]	13 8-21.75	14 8-25	0.44
ISS < 16 [n (%)]	150 (56.4)	131 (55.3)	0.871
ISS 16-24 [n (%)]	61 (22.9)	46 (19.4)	0.393
ISS > 24 [n (%)]	55 (20.7)	60 (25.3)	0.258
Helicopter ALS with doctor [n (%)]	100 (29)	71 (21.8)	0.042*
Ground ALS with nurse [n (%)]	20 (5.8)	25 (7.7)	0.409
Ground ALS with doctor [n (%)]	136 (39.4)	155 (47.7)	0.037*
Ground BLS with paramedic [n (%)]	80 (23.2)	64 (19.7)	0.314
Transfer from other Hospital [n (%)]	9 (2.6)	10 (3.1)	0.895
AIS ≥ 3 head and neck [n (%)]	99 (37.2)	92 (34.6)	0.782
AIS ≥ 3 chest [n (%)]	103 (38.7)	88 (33.1)	0.783
AIS ≥ 3 abdomen [n (%)]	62 (23.3)	48 (18)	0.472
AIS ≥ 3 skeletal [n (%)]	106 (39.8)	95 (35.7)	1.000
ICU admission [n (%)]	92 (34.6)	98 (41.4)	0.142
Surgery < 24 h (%)	35 (13.2)	33 (13.9)	0.904
Died on ED [n (%)]	5 (1.9)	1 (0.4)	0.275
Died in the hospital [n (%)]	18 (6.8)	19 (8)	0.715
TRISS expected hospital mortality (%)	9.9	11.5	0.901
Observed hospital mortality (%)	6.8	8	0.634
Delta between observed and expected hospital mortality	−3.1	−3.5	1.000

*: ≤ 0.05

EMS emergency medical system, ISS injury severity score, AIS abbreviated injury scale, ED emergency department, ALS advanced life support, BLS basic life support, TRISS trauma and injury score