Table 2.
Demographic and clinical characteristics
| ε4+ (n = 77) Mean (SD) |
ε4− (n = 182) Mean (SD) |
|
|---|---|---|
| Age (years) | 43.91 (7.72) | 43.34 (7.88) |
| Age over 50 years (%) | 23.4 | 21.4 |
| Education (years)a | 14.00 (2.50) | 13.07 (2.55) |
| WRAT-III (SS) | 98.62 (14.83) | 96.52 (14.14) |
| Cognitive reservea | 101.21 (13.08) | 97.45 (12.26) |
| Sex (% male) | 87.0 | 83.5 |
| Ethnicity (%) | ||
| African American | 35.1 | 25.8 |
| Latino | 9.1 | 13.2 |
| Caucasian | 50.6 | 57.1 |
| Other | 5.2 | 3.8 |
| CD4+ (T cell count) | 219.40 (243.93) | 219.23 (243.03) |
| Length of infection (years)b | 11.12 (5.12) | 11.61 (5.54) |
| HAART (% prescribed) | 84.4 | 84.6 |
| Hepatitis C (% positive) | 11.7 | 11.0 |
| Substance use/abuse (%)c | 27.3 | 25.9 |
| Major depression (%)d | 19.7 | 24.7 |
Notes:
a
P < 0.05;
b
n = 252;
c
n = 194;
d
n = 216.
Abbreviations: HAART, highly active antiretroviral therapy; SD, standard deviation; WRAT-III, Wide Range Achievement Test, 3rd edition.