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. Author manuscript; available in PMC: 2018 Sep 1.
Published in final edited form as: J Trauma Acute Care Surg. 2017 Sep;83(3):464–468. doi: 10.1097/TA.0000000000001619

Table 1.

Demographics and Emergency Department Vital Signs, Laboratory Values, Resuscitation, and Times

Emergency Department All Patients (n=1,706) ED SBP >90 (n=1,253) ED SBP ≤90 (n=394) p value

Demographics

Age, years 31 (24, 45) 30 (23, 43) 34 (24, 52) <0.001

Gender
 Male 1427 (84%) 1,072 (86%) 304 (77%) <0.001
 Female 278 (16%) 180 (14%) 90 (23%)

Race
 White 543 (32%) 381 (30%) 149 (38%) 0.001
 Black 634 (37%) 498 (40%) 113 (29%)
 Hispanic 339 (20%) 239 (19%) 83 (21%)
 Other 187 (11%) 133 (11%) 48 (12%)

Mechanism
 Blunt 1145 (67%) 915 (73%) 209 (53%) <0.001
 Penetrating 561 (33%) 338 (27%) 185 (47%)

Admission Vital Signs and Labs

Glasgow Coma Scale 15 (3, 15) 15 (12, 15) 6 (3, 15) <0.001

Temperature, F 97.7 (96.9, 98.2) 97.8 (97, 98.2) 97.0 (96.0, 98.0) <0.001

Systolic blood pressure, mmHg 119 (92, 139) 128 (113, 144) 71 (40, 84) <0.001

Pulse, bpm 99 (82, 119) 99 (84, 117) 101 (69, 125) 0.416

Base excess −5 (−10, −2) −4 (−8, −1) −9 (−14, −5) <0.001

Hemoglobin 12.9 (11.3, 14.2) 13.4 (11.9, 14.5) 11.5 (10.0, 12.9) <0.001

Platelet level 223 (180, 264) 227 (191, 270) 193 (138, 251) <0.001

Emergency Department Resuscitation

Crystalloid, mL 0 (0, 2000) 200 (0, 2000) 0 (0, 1000) 0.034

Red blood cells, units 2 (0, 4) 1 (0, 2) 3 (2, 4) <0.001

Plasma, units 0 (0, 2) 0 (0, 1) 2 (0, 3) <0.001

Emergency Department Times

Time in ED, minutes 24 (14, 39) 23 (14, 40) 22 (15, 38) 0.275

Time from ED to surgical start, minutes 42 (30, 61) 45 (33, 63) 36 (27, 54) <0.001

ED – emergency department; OR – operating room

Continuous variables: median (IQR)