Table 1.
Characteristics of Subjects in the Study
| Characteristic | Healthy control subjects | Long-term nonprogressors | Typical progressors | Patients with AIDS |
| No. of subjects | 26 | 14 | 44 | 27 |
| Age, median years (range) | 32 (19–31) | 36 (26–43) | 45 (32–56) | 49 (25–61) |
| Sex, no. of men/no. of women | 17/9 | 8/6 | 34/10 | 17/10 |
| CD4+ T-cell count, median cells/μL (range) | NA | 569 (507–1020)a | 339 (203–482)a | 112 (55–189) |
| HIV-1 load, median copies/ mL (range) | NA | <500a | 38,000 (1800–1,200,000)a | 43,000 (5500–8,500,000) |
| Infection route | ||||
| Blood transfusion | NA | 14 | 40 | 23 |
| Sex | NA | 1 | 4 | 4 |
NOTE. NA, not applicable
a
P < .05, compared with patients with AIDS.