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. Author manuscript; available in PMC: 2020 Aug 1.
Published in final edited form as: J Trauma Acute Care Surg. 2019 Aug;87(2):342–349. doi: 10.1097/TA.0000000000002263

Table 1.

Demographics of patients requiring emergent OR/IR (n=468)

Variable Group 1 (n=102) Group 2 (n=102) Group 3 (n=104) Group 4 (n=100) Group 5 (n=60) p
Time to hemostasis (min) <90 90 to 129 130 to 183 >183 No hemostasis -
Age (years) 32 (24, 47) 31 (24, 43) 33 (24, 45) 32 (24, 48) 34 (24, 54) 0.57
ISS 20 (13, 34) 25 (14, 38) 26 (18, 36) 29 (19, 41) 34 (25, 45) <0.01
Base excess (mEq/L) −7 (−11, −2) −7 (−12, −4) −7 (−12, −3) −9 (−14, −6) −17 (−19, −12) <0.01
SBP (mmHg) 100 (79, 126) 106 (86, 130) 108 (86, 123) 104 (80, 130) 94 (78, 118) 0.17
Heart rate (bpm) 113 (93, 131) 107 (92, 127) 120 (97, 133) 122 (102, 136) 113 (82, 136) 0.09
Blunt mechanism (n, %) 29 (28%) 36 (35%) 47 (45%) 46 (46%) 28 (47%) 0.03
Treatment arm (n, %) 0.67
 1:1:1 53 (52%) 53 (52%) 46 (49%) 49 (49%) 33 (55%)
 1:1:2 49 (48%) 49 (48%) 58 (51%) 51 (51%) 27 (45%)
Emergent OR (n, %) 101 (99%) 101 (99%) 97 (93%) 91 (91%) 59 (98%) <0.01
Emergent IR (n, %) 1 (1%) 1 (1%) 7 (7%) 9 (9%) 1 (2%)
Time from hospital arrival to OR/IR (min) 20 (15, 28) 28 (19, 42) 31 (20, 57) 34 (21, 55) 25 (18, 45) <0.01
Time from hospital arrival to hemostasis (min) 69 (56, 80) 111 (101, 120) 152 (141, 165) 245 (210, 303) - -

ISS, injury severity score