Table 1.
Baseline and Follow-up Characteristics of 950 Men and Women Infected With HIV Type 1, Multicenter AIDS Cohort Study and Women's Interagency HIV Study, 1995–2007
| Characteristic | Baseline (1995) (n = 950 Persons) |
Follow up (1995–2007) (n = 9,172 Person-Visitsa) |
||||
| % | Mean (SD) | No. | % | Mean (SD) | No. | |
| Age, years | 39 (8) | 47 (9) | ||||
| Female sex | 61 | 578 | 53 | 4,825 | ||
| African American | 59 | 560 | 53 | 4,839 | ||
| Use of HAART | 0 | 0 | 39 | 3,556 | ||
| Category of CD4 cell count (no. of cells/mm3) | ||||||
| <200 | 11 | 109 | 9 | 793 | ||
| 200–350 | 21 | 195 | 20 | 1,793 | ||
| 351–500 | 26 | 251 | 24 | 2,234 | ||
| >500 | 42 | 395 | 47 | 4,352 | ||
| CD4 cell count (no. of cells/mm3) | 498 (279) | 538 (299) | ||||
| Category of HIV-1 RNA level (no. of copies/mL) | ||||||
| <4,001 | 34 | 324 | 58 | 5,378 | ||
| 4,001–10,000 | 13 | 120 | 11 | 985 | ||
| >10,000 | 53 | 506 | 31 | 2,809 | ||
| Log10 HIV-1 RNA level (no. of copies/mL) | 4.5 (0.7)b | 4.1 (0.7)b | ||||
Abbreviations: AIDS, acquired immunodeficiency syndrome; HAART, highly active antiretroviral therapy; HIV, human immunodeficiency virus; SD, standard deviation.
a
950 people contributed 9,172 person-visits, with 4,054 person-years of follow-up.
b
Among 691 and 5,040 detectable measurements at baseline and follow-up, respectively.