Table 1. Main characteristics of the study population as a function of year.
| 2006 n (%) | 2007 n (%) | 2008 n (%) | 2009 n (%) | 2010 n (%) | 2011 n (%) | 2012 n (%) | P* | |
| Sex | 0.1 | |||||||
| Female | 46 (24.5) | 69 (28) | 64 (25.3) | 42 (21) | 74 (25.5) | 76 (22.4) | 72 (21.6) | |
| Male | 142 (75.5) | 177 (72) | 189 (74.7) | 158 (79) | 216 (74.5) | 264 (77.6) | 262 (78.4) | |
| Sexual type | 0.01 | |||||||
| MSM | 71 (37.8) | 101 (41.1) | 95 (37.6) | 78 (39) | 142 (49) | 147 (43.2) | 154 (46.1) | |
| Heterosexual | 117 (62.2) | 145 (58.9) | 158 (62.4) | 122 (61) | 148 (51) | 193 (56.8) | 180 (53.9) | |
| Sexual partner known to be HIV positive (yes) | 18 (9.6) | 26 (10.6) | 25 (9.9) | 24 (12) | 39 (13.4) | 48 (14.2) | 52 (15.6) | <0.001 |
| Details of sexual intercourse | ||||||||
| All patients (n = 1851) | ||||||||
| AR | 31 (16.5) | 74 (30.1) | 65 (25.7) | 33 (16.5) | 82 (28.3) | 77 (22.7) | 80 (24) | 0.7 |
| AI | 36 (19.2) | 28 (11.4) | 29 (11.5) | 39 (19.5) | 57 (19.7) | 65 (19.1) | 60 (18) | <0.0001 |
| VR | 42 (22.3) | 55 (22.4) | 61 (24.1) | 38 (19) | 70 (24.1) | 68 (20) | 59 (17.7) | 0.1 |
| VI | 62 (33) | 69 (28.1) | 87 (34.4) | 70 (35) | 57 (19.7) | 96 (28.2) | 96 (28.7) | 0.09 |
| OR | 7 (3.7) | 13 (5.3) | 6 (2.4) | 14 (7) | 13 (4.5) | 20 (5.9) | 32 (9.6) | 0.004 |
| OI | 5 (2.7) | 7 (2.9) | 5 (2) | 3 (1.5) | 11 (3.8) | 13 (3.8) | 7 (2.1) | 0.9 |
| MSM (n = 788) | ||||||||
| AR | 30 (42.3) | 63 (62.4) | 63 (66.3) | 29 (37.2) | 78 (54.9) | 73 (49.7) | 75 (48.7) | 0.2 |
| AI | 31 (43.7) | 25 (24.8) | 24 (25.3) | 32 (41) | 48 (33.8) | 54 (36.7) | 53 (34.4) | 0.5 |
| OR | 6 (8.5) | 10 (9.9) | 5 (5.3) | 14 (18) | 13 (9.2) | 16 (10.9) | 24 (15.6) | 0.1 |
| OI | 3 (4.2) | 3 (3) | 2 (2.6) | 3 (2.1) | 3 (2) | 3 (2) | 2 (1.3) | 0.2 |
| Heterosexuals (n = 1063) | ||||||||
| AR | 1 (0.9) | 11 (7.6) | 2 (1.3) | 4 (3.3) | 4 (2.7) | 4 (2.1) | 5 (2.8) | 0.4 |
| AI | 5 (4.3) | 3 (2.1) | 5 (3.2) | 7 (5.7) | 9 (6.1) | 11 (5.7) | 7 (3.9) | 0.3 |
| VR | 42 (35.9) | 55 (37.9) | 61 (38.6) | 38 (31.2) | 70 (47.3) | 68 (35.2) | 59 (32.8) | 0.6 |
| VI | 62 (53) | 69 (47.6) | 87 (55.1) | 70 (57.4) | 57 (38.5) | 96 (49.7) | 96 (53.3) | 0.7 |
| OR | 1 (0.9) | 3 (2.1) | 1 (0.6) | 0 (0) | 0 (0) | 4 (2.1) | 8 (4.4) | 0.03 |
| OI | 2 (1.7) | 4 (2.8) | 2 (1.3) | 1 (0.8) | 8 (5.4) | 10 (5.2) | 5 (2.8) | 0.09 |
* Chi-squared for trend. For sexual intercourse details, each group was compared to all the other sexual intercourses.