Table 3.
Network characteristics by age, gender and race among the 647 STEP participants with at least one drug-sharing partner in the baseline visit
| Number of reported partnerships | Baseline network size | Probability of sharing with own group conditional on relative availability of that group | ||
|---|---|---|---|---|
| N (%) | Mean (s.d.) | (%) | ||
| Total | 647 | 1235 | 1.91 (1.81–2.00) | – |
| Age | ||||
| Under 25 | 23 (3.6) | 48 (3.9) | 2.09 (1.60–2.58) | 18.7 (3.5–47.4) |
| 25–29 | 32 (4.9) | 55 (4.5) | 1.72 (1.40–2.04) | 34.1 (5.0–77.1) |
| 30–34 | 67 (10.4) | 142 (11.5) | 2.12 (1.74–2.50) | 13.8 (0.6–51.7) |
| 35–39 | 109 (16.8) | 211 (17.1) | 1.94 (1.67–2.20) | 22.5 (3.2–58.9) |
| 40–44 | 151 (23.3) | 290 (23.5) | 1.92 (1.72–2.12) | 17.9 (2.0–52.5) |
| 45–49 | 154 (23.8) | 279 (22.6) | 1.81 (1.65–1.98) | 28.5 (5.1–66.2) |
| 50–54 | 86 (13.3) | 165 (13.4) | 1.92 (1.70–2.14) | 34.1 (6.2–74.3) |
| 55+ | 25 (3.9) | 45 (3.6) | 1.80 (1.44–2.16) | 54.4 (26.6–80.0) |
| Sex | ||||
| Female | 232 (35.9) | 455 (36.8) | 1.96 (1.79–2.13) | 51.2 (2.7–97.8) |
| Male | 415 (64.1) | 780 (63.2) | 1.88 (1.77–1.99) | 61.8 (1.8–99.9) |
| Race | ||||
| Non-black | 137 (21.2) | 281 (22.8) | 2.05 (1.80–2.30) | 89.7 (2.7–100) |
| Black | 509 (78.7) | 953 (77.2) | 1.87 (1.77–1.97) | 92.3 (58.1–99.9) |