Table 1.
TBI+ (n = 50) | TBI− (n = 526) | p-value | |
---|---|---|---|
Males, n (%) | 43 (86) | 366 (67) | 0.014* |
Caucasian, n (%) | 49 (98) | 455 (87) | 0.06 |
Education in years, M (SD) | 15.3 (3.7) | 14.5 (3.6) | 0.17 |
Years smoking, M (SD) | 13.7 (14.1) | 11.2 (15.7) | 0.25 |
Family history of dementia, n (%) | 24 (50) | 256 (57) | 0.38 |
Number of APOE ε4 alleles | 0.63 | ||
Zero APOE ε4 alleles, n (%) | 22 (56) | 181 (51) | |
One APOE ε4 allele, n (%) | 13 (33) | 146 (41) | |
Two APOE ε4 alleles, n (%) | 4 (10) | 29 (8) | |
Depression | |||
Lifetime, n (%) | 27 (56) | 305 (60) | 0.65 |
Within 2 years of diagnosis, n (%) | 22 (46) | 286 (56) | 0.18 |
Remote history of stroke, n (%) | 3 (6) | 39 (8) | 0.74 |
p < 0.05.
Note: APOE ε4 indicates apolipoprotein E ε4.