ATC (n = 88) | No ATC (n = 457) | P value | ||
Age | Median age (range) | 7y (30d – 16y) | 7y (5d – 17y) | 0.7 |
Newborn, n (%) | 2 (2.3) | 17 (3.7) | 0.5 | |
Infant, n (%) | 13 (14.8) | 56 (12.3) | 0.52 | |
Toddler, n (%) | 12 (13.6) | 55 (12) | 0.68 | |
Child, n (%) | 39 (44.3) | 201 (44) | 0.95 | |
Adolescent, n (%) | 22 (25) | 128 (28) | 0.56 | |
Sex | Female, n (%) | 33 (38) | 152(33.3) | 0.96 |
Race | American Indian or Alaskan Native, n (%) | 1 (1.1) | 2 (0.4) | 0.42 |
Asian, n (%) | 6 (6.8) | 32 (7) | 0.95 | |
Black or African American, n (%) | 24 (27.3) | 80 (17.5) | 0.03 | |
Native Hawaiian or Pacific Islander, n (%) | 0 (0) | 2 (0.4) | 0.53 | |
White, n (%) | 50 (56.8) | 285 (62.4) | 0.33 | |
Other, n (%) | 7 (8) | 56 (12.3) | 0.25 | |
Ethnicity | Hispanic, n (%) | 19 (21.6) | 127 (27.8) | 0.23 |
Trauma mechanism | Blunt, n (%) | 73 (83) | 423 (92.6) | 0.04 |
Penetrating, n (%) | 10 (11.3) | 33 (7.2) | 0.19 | |
Unknown, n (%) | 5 (5.7) | 1 (0.2) | <0.001 | |
ISS | Median ISS (range) | 25 (0–75) | 9 (0–38) | <0.001 |
ATC is defined as an international normalized ratio ≥1.3. For breakdown by age newborns were 0 to 30 days old, infants were 31 to 364 days old, toddlers were 1 to 3 years old, children were 4 to 11 years old and adolescents were 12 to 18 years old.
ATC, acute traumatic coagulopathy; ISS, Injury Severity Score.