Table 1.
Proportion of transmission risk groups among the study population.
| Risk groups | ||||||
| Country | MSM | IDUs | Heterosexuals | Others | Unknown | Sum |
| United Kingdom (GBR) | 59 (66%) | 0 (0%) | 6 (7%) | 0 (0%) | 25 (28%) | 90 |
| Austria (AUT) | 18 (20%) | 5(6%) | 7 (8%) | 0 (0%) | 60 (67%) | 90 |
| Belgium (BEL) | 56 (65%) | 3 (3%) | 11 (13%) | 4 (5%) | 12 (14%) | 86 |
| Denmark (DNK) | 15 (17%) | 4 (4%) | 7 (8%) | 0 (0%) | 64 (71%) | 90 |
| Spain (ESP) | 46 (51%) | 21 (23%) | 17 (19%) | 0 (0%) | 6 (7%) | 90 |
| Germany (DEU) | 85 (94%) | 0 (0%) | (0%) | 0 (0%) | 5 (6%) | 90 |
| Greece (GRC) | 39 (53%) | 3 (4%) | 8 (11%) | 1 (1%) | 22 (30%) | 73 |
| Israel (ISR) | 15 (44%) | 8 (24%) | 7 (21%) | 1 (3%) | 3 (9%) | 34 |
| Italy (ITA) | 31 (34%) | 15 (17%) | 32 (36%) | 0 (0%) | 12 (13%) | 90 |
| Luxembourg (LUX) | 50 (56%) | 15 (17%) | 19 (21%) | 0 (0%) | 6 (7%) | 90 |
| Netherlands (NLD) | 57 (68%) | 7 (8%) | 15 (18%) | 0 (0%) | 5 (6%) | 84 |
| Norway (NOR) | 19 (73%) | 1 (4%) | 5 (19%) | 0 (0%) | 1 (4%) | 26 |
| Poland (POL) | 12 (13%) | 42 (47%) | 19 (21%) | 0 (0%) | 17 (19%) | 90 |
| Portugal (PRT) | 27 (30%) | 16 (18%) | 35 (39%) | 0 (0%) | 12 (13%) | 90 |
| Serbia | 22 (50%) | 6 (14% | 16 (36%) | 0 (0%) | 0 (0%) | 44 |
| Sweden (SWE) | 44 (49%) | 3 (3%) | 10 (11%) | 0 (0%) | 33 (37%) | 90 |
| Switzerland (CHE) | 48 (53%) | 10 (11%) | 28 (31%) | 0 (0%) | 4 (4%) | 90 |
| Sum | 643 (48%) | 159 (12%) | 242 (18%) | 6 (0.5%) | 287 (21%) | 1337 |