TABLE 2.
ImPACT Scoresa
| ImPACT Score | Total Sample (N = 235) | No History of Concussion (n = 141) | History of Concussion (n = 94) | P |
|---|---|---|---|---|
| Verbal memory | 85.4 ± 10.2 (86.4 to 91.7) | 86.9 ± 9.5 | 83.2 ± 10.8 | .007b |
| Visual memory | 74.5 ± 13.4 (73.8 to 80.9) | 75.7 ± 13.0 | 72.8 ± 13.9 | .115 |
| Processing speed | 38.6 ± 6.3 (37.0 to 40.3) | 38.7 ± 6.0 | 38.6 ± 6.9 | .974 |
| Reaction time, s | 0.62 ± 0.10 (0.59 to 0.64) | 0.62 ± 0.09 | 0.63 ± 0.10 | .744 |
| Impulse control | 4.0 ± 3.2 (3.1 to 4.7) | 3.9 ± 3.2 | 4.1 ± 3.1 | .774 |
| Total symptom score | 1.6 ± 4.8 (–1.2 to 1.6) | 1.1 ± 3.5 | 2.4 ± 6.2 | .032 |
aValues are reported as mean ± SD (95% CI). ImPACT, Immediate Post-Concussion Assessment and Cognitive Testing.
bMajor League Lacrosse (MLL) players with a history of concussion scored lower on the verbal memory composite score compared with MLL players without a history of concussion (P < .05).