Patient demographics and injury data
| Overall cohort | Non-shock | Shock | |
| N=1170 | n=746 (64%) | n=424 (36%) | |
| Age* | 48 (29–62) | 50 (30–63) | 44 (28–60) |
| Male, n (%) | 726 (62.1) | 439 (58.9) | 287 (67.7) |
| Race, n (%) | |||
| White | 891 (76.2) | 587 (78.7) | 304 (71.7) |
| Black | 47 (4.0) | 26 (3.5) | 21 (5.0) |
| Asian | 68 (5.8) | 42 (5.6) | 26 (6.1) |
| Native | 52 (4.4) | 26 (3.5) | 26 (6.1) |
| Unknown/other | 112 (9.6) | 65 (8.7) | 47 (11.1) |
| Ethnicity, n (%) | |||
| Hispanic | 96 (8.2) | 56 (7.5) | 40 (9.4) |
| Non-Hispanic | 803 (68.6) | 529 (70.9) | 274 (64.6) |
| Unknown | 271 (23.2) | 161 (21.6) | 110 (25.9) |
| Hospital transfer, n (%) | |||
| No | 471 (40.3) | 257 (34.4) | 216 (50.9) |
| Yes | 697 (59.6) | 489 (65.5) | 208 (49.1) |
| Out-of-state transfer, n (%) | 132 (11.3) | 96 (12.9) | 36 (8.5) |
| Hospital admission, n (%) | |||
| Daytime (7:30–17:30), M–F | 290 (24.8) | 191 (25.6) | 99 (23.4) |
| Night/weekend (17:31–07:29), M–F/S–S | 880 (75.2) | 555 (74.4) | 325 (76.7) |
| Mechanism, n (%) | |||
| Motor vehicle collision | 316 (27.0) | 174 (23.3) | 142 (33.5) |
| Fall | 332 (28.4) | 260 (34.9) | 72 (17.0) |
| Pedestrian struck | 211 (18.0) | 105 (14.1) | 106 (25.0) |
| Motorcycle collision | 137 (11.7) | 78 (10.5) | 59 (13.9) |
| Bicycle | 44 (3.8) | 27 (3.6) | 17 (4.0) |
| Other | 130 (11.1) | 102 (13.7) | 28 (6.6) |
| ISS† | 31(13.9) | 26(10.9) | 41(13.8) |
| Head AIS≥3 | 208 (17.8) | 89 (11.9) | 119 (28.1) |
| Chest AIS≥3 | 463 (39.6) | 209 (28.0) | 254 (59.9) |
| Abdomen AIS≥3 | 229 (19.6) | 85 (11.4) | 144 (34.0) |
| Extremity AIS≥3 | 1170 (100.0) | 746 (100.0) | 424 (100.0) |
| Admission vitals* | |||
| Systolic blood pressure | 122 (106–137) | 126 (114–141) | 107 (87–126) |
| Heart rate | 93 (80–110) | 88 (77–99) | 113 (91–128) |
| Glasgow Coma Scale score | 15 (11–15) | 15 (15–15) | 11 (3–15) |
| Admission labs* | |||
| pH | 7.3 (7.2–7.4) | 7.4 (7.3–7.4) | 7.3 (7.2–7.3) |
| Base deficit | 4.8 (2.4–8.0) | 2.4 (1.2–3.7) | 7.2 (5.4–9.9) |
| Lactate | 2.7 (1.5–4.3) | 1.7 (1.0–2.7) | 3.6 (2.5–5.7) |
| Hematocrit | 37 (33–40) | 37.5 (33–40) | 35 (30–39) |
*Median (IQR).
†Mean (SD).
AIS, Abbreviated Injury Scale; ISS, Injury Severity Score; M–F, Monday to Friday; S–S, Saturday to Sunday.