Impact of COVID-19 pandemic on interhospital transfer of patients with major trauma in Korea: a retrospective cohort study

Table 3 Subgroup analysis among the major trauma group (ISS > 15)

		Total (n = 508)	Pre-COVID (n = 314)	COVID (n = 194)	p-value
Time from injury to TC (m) ^a		235 [166–554]	218 [158–470]	263 [180–674]	0.021
SI^a		0.67 [0.54–0.91]	0.67 [0.54–0.90]	0.67 [0.54–0.94]	0.972
GCS^a		15 [11–15]	15 [11–15]	15 [11–15]	0.439
TTA		315 (62.0)	180 (57.3)	135 (69.6)	0.006
ISS^a		22 [17–26]	22 [17–27]	21 [17–25]	0.256
Blood product (pRBC) transfusion
Required in first 4 h		167 (32.9)	99 (31.5)	68 (351)	0.412
Amount (pint)^b
	< 4 h	2.05 ± 4.84	1.93 ± 4.82	2.11 ± 4.86	0.686
	4-24 h	3.40 ± 9.01	3.46 ± 9.16	3.29 ± 8.73	0.830
TC stay (m)^a		151 [99–304]	142 [95–282]	157 [103–333]	0.153
Direct OR/IR		112 (22.0)	74 (23.6)	38 (19.6)	0.293
ICU care
No of patient		414 (81.5)	255 (81.2)	159 (82.0)	0.833
LOS (h)^b		165.6 ± 236.3	172.6 ± 254.6	154.2 ± 203.4	0.393
2nd transfer		8 (1.6)	8 (2.5)	0 (0.0)	0.025
Mortality
	Total	77 (15.2)	50 (15.9)	27 (13.9)	0.540
	Death < 24 h^†	36 (7.1)	20 (6.4)	16 (8.1)	0.423
	< 48 h^†	42 (8.3)	25 (8.0)	17 (8.8)	0.750
	< 7d^†	55 (10.8)	33 (10.5)	22 (11.3)	0.770
	< 30d^†	65 (12.8)	39 (12.4)	26 (13.4)	0.748

Unless otherwise indicated, data are reported as number (percent)
^aData are reported as median [interquartile range]
^bData are reported as mean ± standard deviation
^†Numbers and percentage presented indicate the accumulated value on each designed period
TC, trauma center; SI, shock index; GCS, Glasgow coma scale; TTA, trauma team activation; ISS, injury severity scale; pRBC, packed red blood cell; OR, operation room; IR, intervention room; ICU, intensive care unit; LOS, length of stay

ISSN: 1471-227X