Table 2.
Participant Traumatic Brain Injury History
| Mean | SD | Range | |
|---|---|---|---|
| Total number of concussions | 8.3 | 5.4 | 1–20 |
| Number of grade 3 concussions | 1.7 | 1.7 | 1–5 |
| Years since retireda | 23.2 | 14.4 | 5–50 |
SD, standard deviation
N, 18
a
N, 17
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