Table 1 Univariate associations with race of covariates from the mortality model
Covariate | Category | Black | White | p - value |
|---|---|---|---|---|
Motor GCS score | < 0.0001 | |||
6 | 976 (42%) | 3891 (54%) | ||
5 | 219 (9%) | 537 (7%) | ||
4 | 166 (7%) | 362 (5%) | ||
3 | 56 (2%) | 154 (2%) | ||
2 | 51 (2%) | 103 (1%) | ||
1 | 579 (25%) | 1233 (17%) | ||
missing | 273 (12%) | 993 (14%) | ||
Head AIS score | < 0.0001 | |||
4 | 1301 (56%) | 4416 (61%) | ||
5 | 989 (43%) | 2830 (39%) | ||
6 | 27 (0%) | 30 (1%) | ||
ISS score | < 0.0001 | |||
1 to 17 | 657 (28%) | 2429 (33%) | ||
18 to 29 | 1062 (46%) | 3176 (44%) | ||
> 29 | 601 (26%) | 1668 (23%) | ||
Number of diagnoses | 0.0506 | |||
1 to 4 | 808 (35%) | 2658 (37%) | ||
5 to 14 | 994 (43%) | 2908 (40%) | ||
> 14 | 518 (22%) | 1707 (24%) | ||
Systolic blood pressure in ED | < 0.0001 | |||
low | 166 (7%) | 289 (4%) | ||
normal | 1887 (81%) | 6295 (87%) | ||
high | 132 (6%) | 298 (4%) | ||
missing | 135 (6%) | 391 (5%) | ||
EMS minutes | < 0.0001 | |||
< 40 | 674 (29%) | 778 (11%) | ||
40 to 127 | 574 (25%) | 2626 (36%) | ||
> 128 | 266 (11%) | 1254 (17%) | ||
missing | 806 (35%) | 2615 (36%) | ||
ED disposition | < 0.0001 | |||
dead | 84 (4%) | 128 (2%) | ||
ICU, OR | 1840 (79%) | 5675 (78%) | ||
other admission | 320(14%) | 1152 (16%) | ||
missing | 76 (3%) | 318 (4%) | ||
Penetrating injury | < 0.0001 | |||
no | 243 (10%) | 227 (3%) | ||
yes | 2077 (90%) | 7046 (97%) | ||
Protective devices | 0.0002 | |||
none | 1894 (82%) | 5671 (78%) | ||
some | 426 (18%) | 1602 (22%) | ||
insurance | < 0.0001 | |||
commercial | 663 (29%) | 4101 (56%) | ||
non-commercial | 1611 (69%) | 3052 (42%) | ||
missing | 46 (2%) | 120 (2%) | ||
Age group | < 0.0001 | |||
infant | 505(22%) | 1313 (18%) | ||
toddler | 228 (10%) | 633 (9%) | ||
child | 694 (30%) | 2305 (32%) | ||
teen | 717 (31%) | 2618 (36%) | ||
missing | 176 (8%) | 404 (6%) | ||
Hospital bed size | < 0.0001 | |||
< 200 | 157 (7%) | 533 (7%) | ||
201–400 | 806 (35%) | 2319 (32%) | ||
401–600 | 512 (22%) | 2164 (30%) | ||
> 600 | 845 (36%) | 2257 (31%) | ||
Teaching status | < 0.0001 | |||
university | 1800 (78%) | 5156 (71%) | ||
community | 443 (19%) | 1756 (24%) | ||
non-teaching | 64 (3%) | 293 (4%) | ||
missing | 68 (1%) | 13 (1%) | ||
Self-transportation | 0.0004 | |||
no | 1875 (81%) | 5624 (77%) | ||
yes | 445 (19%) | 1649 (23%) |