Table 1.
Characteristics of 1,525 African American injection drug users at study entry and over 8,181 person-years of follow up, ALIVE cohort, 1988 – 2008.
| Characteristic: a | Entry N = 1,525 participants | Follow up N = 8,181 person-years |
|---|---|---|
| Age, years | 37 (32; 42) | 42 (36; 48) |
| Older than 37 years, % (n) | 48 (736) | 73 (5,972) |
| Female sex, % (n) | 28 (428) | 28 (2,291) |
| Education, years | 10 (10; 12) | 10 (10; 12) |
| More than 10 years of education, % (n) | 43 (662) | 44 (3,599) |
| Cocaine b, % (n) | 78 (1,184) | 58 (4,745) |
| Number of sexual partners, % (n) | ||
| >1 | 40 (604) | 28 (2,291) |
| 1 | 43 (661) | 47 (3,845) |
| 0 | 17 (260) | 25 (2,045) |
| Male having sex with a man, % (n) | 1 (16 | 0.7 (57) |
| Any sexually transmitted infections c, % (n) | 3 (52) | 2 (164) |
| Number of drug injections/day | 0.7 (0.0; 2.0) | 0.1 (0; 1.0) |
| Number of drug injections/day, % (n) | ||
| >1 | 35 (525) | 21 (1,718) |
| 1 | 21 (327) | 18 (1,473) |
| 0 | 44 (673) | 61 (4,990) |
| Attended shooting gallery, % (n) | 13 (199) | 6 (491) |
| Median number of drinks/week in prior 2 years | 11 (2; 28) | 6 (1; 22) |
| Number of drinks/week in prior 2 years, % (n) | ||
| 51–140 | 13 (193) | 9 (736) |
| 21–50 | 21 (322) | 17 (1,390) |
| 6–20 | 28 (430) | 26 (2,127) |
| 1–5 | 23 (356) | 24 (1,964) |
| 0 | 15 (224) | 24 (1,964) |
| Binge drinking d, % (n) | 34 (514) | 23 (1,882) |
| Composite, % (n) | ||
| 21–140 | 34 (515) | 26 (2,127) |
| 1–20, binge | 8 (118) | 6 (491) |
| 1–20, no binge | 43 (668) | 44 (3,599) |
| 0 | 15 (224) | 24 (1,964) |
a
Median (quartiles), for prior six months unless noted otherwise.
b
Crack, snort cocaine, inject cocaine alone, and speedball.
c
Genital herpes simplex virus, genital warts, gonorrhea, or syphilis.
d
Drinking at least once a week and consuming more than five drinks on a given drinking day.