Table 1.
Demographic and exposure characteristics of subject groups
| n | Mean age at death (yrs) | Age of first exposure to RHI (yrs) | Years exposure to head injury | Number of reported concussions | Age of symptom onset | Cases with dementia | |
|---|---|---|---|---|---|---|---|
| Controls | 16 | 76 ± 3 | N/A | 0 | 0.1 ± 0.1 | N/A | 0.00 % |
| RHI without CTE | 18 | 32 ± 4 | 10 ± 0.5 | 9 ± 1 | 30.1 ± 9.2 | 27 ± 4 | 5.56 % |
| CTE Mild (Stage I & II) | 13 | 44 ± 6 | 14 ± 1 | 15 ± 0.8 | 41.5 ± 16.4 | 34 ± 6 | 7.69 % |
| CTE Severe (Stage III & IV) | 35 | 66 ± 2 | 12 ± 0.5 | 17 ± 0.7 | 38.4 ± 12.6 | 48 ± 3 | 48.57 % |
Data expressed as mean ± SEM