Table 2 Sociodemographic characteristics, drug injection-related and sexual behaviors by awareness of HIV infection at first participation (Aristotle, 2012–2013, N = 506 HIV-positive People Who Inject Drugs)
Variable | Awareness of HIV infection | Â | Â | |
|---|---|---|---|---|
Aware (N = 127) | Unaware (N = 379) | Overall | p-value* | |
N (%) | N (%) | N (%) | Â | |
Gender |  |  |  | < 0.001 |
 Male | 87 (68.5) | 332 (87.6) | 419 (82.8) |  |
 Female | 40 (31.5) | 47 (12.4) | 87 (17.2) |  |
Median age in years (interquartile range) | 34.1 (29.3, 38.5) | 32.7 (28.5, 38.3) | 33.1 (28.9, 38.3) | 0.223 |
Origin | Â | Â | Â | 0.012 |
 Other | 16 (12.6) | 87 (23.0) | 103 (20.4) |  |
 Greek | 111 (87.4) | 292 (77.0) | 403 (79.6) |  |
Ever participated in OMT |  |  |  | < 0.001 |
 No | 61 (48.4) | 306 (82.0) | 367 (73.5) |  |
 Yes | 65 (51.6) | 67 (18.0) | 132 (26.5) |  |
Ever been in prison | Â | Â | Â | 0.057 |
 No | 40 (31.5) | 155 (41.0) | 195 (38.6) |  |
 Yes | 87 (68.5) | 223 (59.0) | 310 (61.4) |  |
Main substance of use | Â | Â | Â | 0.138 |
 Heroin | 85 (67.5) | 287 (76.5) | 372 (74.3) |  |
 Cocaine | 31 (24.6) | 58 (15.5) | 89 (17.8) |  |
 Buprenorphine | 0 (0.0) | 2 (0.5) | 2 (0.4) |  |
 Sisha/Methamph | 0 (0.0) | 2 (0.5) | 2 (0.4) |  |
 Speedball | 10 (7.9) | 26 (6.9) | 36 (7.2) |  |
Frequency of injecting drugs in past 12 months |  |  |  | 0.035 |
 More than once a day | 55 (43.3) | 211 (55.7) | 266 (52.6) |  |
 Once a day | 11 (8.7) | 24 (6.3) | 35 (6.9) |  |
 More than once a week | 22 (17.3) | 73 (19.3) | 95 (18.8) |  |
 More than once a month | 15 (11.8) | 31 (8.2) | 46 (9.1) |  |
 Less than once a month | 24 (18.9) | 40 (10.6) | 64 (12.6) |  |
Receptive syringe sharing on last injection | Â | Â | Â | 0.889 |
 No | 83 (74.8) | 249 (74.1) | 332 (74.3) |  |
 Yes | 28 (25.2) | 87 (25.9) | 115 (25.7) |  |
Receptive syringe sharing in past 12 months |  |  |  | 0.741 |
 Never | 66 (52.4) | 190 (50.7) | 256 (51.1) |  |
 Rarely | 40 (31.7) | 131 (34.9) | 171 (34.1) |  |
 About half the times | 10 (7.9) | 33 (8.8) | 43 (8.6) |  |
 Most of the times, Always | 10 (7.9) | 21 (5.6) | 31 (6.2) |  |
Dividing drugs with a syringe someone else had used before about half of the times or more in the past 12 months |  |  |  | 0.112 |
 No | 54 (42.5) | 192 (50.7) | 246 (48.6) |  |
 Yes | 73 (57.5) | 187 (49.3) | 260 (51.4) |  |
Condom use for males | Â | Â | Â | 0.719 |
 Never/Usually no | 32 (28.8) | 57 (30.8) | 89 (30.1) |  |
 Always/Usually yes | 79 (71.2) | 128 (69.2) | 207 (69.9) |  |
Condom use for females | Â | Â | Â | 0.022 |
 Never/Usually no | 10 (19.6) | 13 (43.3) | 23 (28.4) |  |
 Always/Usually yes | 41 (80.4) | 17 (56.7) | 58 (71.6) |  |