Table 2.
Patient and Injury Characteristics by Prolonged and Typical Recovery Groups.
| Characteristics | All n (%) |
Prolonged Recovery n (%) |
Typical Recovery n (%) | p * |
|---|---|---|---|---|
| Total | 4380 | 1612 (36.8%) | 2768 (63.2%) | |
| Sex | <0.001 | |||
| Female | 1754 (40.0) | 827 (51.3) | 927 (33.5) | |
| Male | 2626 (60.0) | 785 (48.7) | 1841 (66.5) | |
| Age group, y | 0.005 | |||
| 10–12 | 584 (13.3) | 185 (11.5) | 399 (14.4) | |
| 13–15 | 1927 (44.0) | 698 (43.3) | 1229 (44.4) | |
| 16–18 | 1869 (42.7) | 729 (45.2) | 1140 (41.2) | |
| Race | 0.462 | |||
| White | 3519 (80.3) | 1300 (80.6) | 2219 (80.2) | |
| Black | 481 (11.0) | 166 (10.3) | 315 (11.4) | |
| Other | 380 (8.7) | 146 (9.1) | 234 (8.5) | |
| Prior concussion | 0.005 | |||
| 0 | 2850 (65.1) | 1023 (63.5) | 1827 (66.0) | |
| 1 | 1015 (23.2) | 366 (22.7) | 649 (23.4) | |
| ≥2 | 515 (11.8) | 223 (13.8) | 292 (10.5) | |
| History of learning disorder | <0.001 | |||
| No | 3807 (86.9) | 1355 (84.1) | 2452 (88.6) | |
| Yes | 573 (13.1) | 257 (15.9) | 316 (11.4) | |
| Loss of consciousness | 0.374 | |||
| No | 3661 (86.5) | 1336 (85.9) | 2325 (86.9) | |
| Yes | 570 (13.5) | 219 (14.1) | 351 (13.1) | |
| Retrograde amnesia | <0.001 | |||
| No | 3461 (81.3) | 1201 (76.4) | 2260 (84.2) | |
| Yes | 796 (18.7) | 372 (23.6) | 424 (15.8) | |
| Anterograde amnesia | <0.001 | |||
| No | 3511 (82.6) | 1231 (78.3) | 2280 (85.0) | |
| Yes | 742 (17.4) | 341 (21.7) | 401 (15.0) | |
| Neck pain | <0.001 | |||
| No | 1625 (37.1) | 434 (26.9) | 1191 (43.1) | |
| Yes | 2752 (62.9) | 1177 (73.1) | 1575 (56.9) | |
* p-values are based on chi-square tests.