Table 2.
Comparison between frequency of dementia, MCI, ALS, parkinsonism, and head trauma between students who played football as primary sport and students who played football not as primary sport
| >1 year of playing football (N=153) | No Football (N=190) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Count | Person Years | Rate | 95% CI | Count | Person Years | Rate | 95% CI | Rate Ratio | 95% CI | p-value | |
| Dementia / MCI | 5 | 10013.97 | 4.99 | (1.62, 11.65) | 4 | 12362.34 | 3.24 | (0.88, 8.28) | 1.54 | (0.50, 3.60) | .26 |
| ALS | 0 | 10032.67 | 0.00 | (0.00, 3.68) | 0 | 12374.73 | 0.00 | (0.00, 2.98) | NA | NA | NA |
| Parkinsonism | 3 | 10022.59 | 2.99 | (0.62, 8.75) | 3 | 12361.68 | 2.43 | (0.50, 7.09) | 1.23 | (0.25, 3.61) | .52 |
| Head trauma | 24 | 8818.31 | 27.22 | (27.44, 40.50) | 14 | 11670.70 | 12.00 | (6.56, 20.13) | 2.27 | (1.45, 3.38) | <.01 |