Table 2. Characteristics of participants (n = 278) of the Transmission Reduction Intervention Project (TRIP) in Athens, Greece, 2013–2015.
| All | Recent Seeds (RS) | Network of Recent Seeds | Control Seeds with Long-term HIV infection (LCS) | Network of Control Seeds with Long-term HIV infection | |
|---|---|---|---|---|---|
| Total | 278 | 23 | 171 | 19 | 65 |
| Males | 219 (78.8%) | 18 (78.3%) | 136 (79.5%) | 16 (84.2%) | 49 (75.4%) |
| Median Age in years (Interquartile Range) | 34 (30–40) | 38 (30–43) | 35 (30–40) | 36 (32–40) | 33 (30–37) |
| Greek national | 245 (88.1%) | 21 (91.3%) | 150 (87.7%) | 17 (89.5%) | 57 (87.7%) |
| Permanent resident of Athens (living in Athens since birth) | 145 (52.2%) | 11 (47.8%) | 92 (53.8%) | 12 (63.2%) | 30 (46.2%) |
| Education (up to high school) | 239 (86.0%) | 21 (91.3%) | 147 (86.0%) | 16 (84.2%) | 55 (84.6%) |
| Homeless | 76 (27.3%) | 6 (26.1%) | 45 (26.3%) | 4 (21.1%) | 21 (32.3%) |
| Unemployed/unable to work | 233 (83.8%) | 19 (82.6%) | 145 (84.8%) | 15 (79.0%) | 54 (83.1%) |
| People who inject drugs (injecting over the last 6 months) | 251 (90.3%) | 23 (100%) | 149 (87.1%) | 19 (100%) | 60 (92.3%) |
| Duration of injection | 13 (7–17) | 13 (3–19) | 12.5 (6.5–18) | 12 (7–16) | 13 (7–15) |
| On drug/alcohol treatment at enrollment | 100 (36.0%) | 8 (34.8%) | 64 (37.4%) | 6 (31.6%) | 22 (33.9%) |
| Heterosexuals | 271 (97.5%) | 22 (95.7%) | 167 (97.7%) | 18 (94.7%) | 64 (98.5%) |
| Sex workers | 28 (10.1%) | 1 (4.4%) | 14 (8.2%) | 2 (10.5%) | 11 (16.9%) |
| Male sex workers (% of males) | 6 (2.7%) | 1 (5.6%) | 2 (1.5%) | 0 | 3 (6.1%) |
| Female sex workers (% of females) | 22 (37.3%) | 0 | 12 (34.3%) | 2 (66.7%) | 8 (50%) |
P-values for all comparisons among the four groups were > 0.05. The term network here refers to participants’ risk or social contacts who were eventually recruited and not to the entire sociometric network.