Table 1.
Baseline Demographics and Medical History of Subjects With and Without a History of TBI
| TBI+ (n=248) |
TBI− (n=2471) |
|
|---|---|---|
| Age of MCI diagnosis, M (SD)* | 71.68 (9.05) | 74.33 (8.50) |
| Education, M (SD) | 15.17 (3.36) | 15.20 (3.21) |
| Female*, n (%) | 82 (33) | 1260 (51) |
| Race, n (%) | ||
| Caucasian | 203 (82) | 1913 (78) |
| African American | 25 (10) | 323 (13) |
| Hispanic | 14 (6) | 158 (6) |
| Other, Non-white | 6 (2) | 70 (3) |
| Family History of Dementia, n (%) | 143 (58) | 1280 (56) |
| Apoe4 alleles, n (%) | ||
| 0 alleles | 141 (57) | 1388 (56) |
| 1 allele | 90 (36) | 883 (36) |
| 2 alleles | 17 (7) | 200 (8) |
| Cigarette Smokers, n (%) | 51 | 46 |
| # of Years Smoking Cigarettes, M (SD) | 22.54 (15.23) | 22.75 (14.97) |
| History of Depression*, n (%) | 77 (31) | 448 (18) |
| History of Alcohol Abuse*, n (%) | 25 (10) | 68 (3) |
| History of Other Substance Abuse, n (%) | 6 (2) | 12 (1) |
| CAIDE score, M (SD) | 6.84 (1.78) | 6.67 (1.81) |
| CDR–SB score, M (SD) | 1.26 (1.02) | 1.30 (1.08) |
Note. n = 2,719.
*
p <.05.
MCI = mild cognitive impairment; TBI = traumatic brain injury with loss of consciousness; Other, Non-white = Asian/Pacific Islander/Native American background; CDR–SB = Clinical Dementia Rating Sum of Boxes; CAIDE = the Cardiovascular Risk Factors, Aging and Incidence of Dementia risk score; Apoe4 = apolipoprotein E-e4.