Variable | Â | Â | Â | Crude Model | Adjusted Modelb | ||
---|---|---|---|---|---|---|---|
N | Recent HIV infection | cOR (95 % CI) | P Value | aOR (95 % CI) | P Value | ||
 | Frequency | % |  |  |  |  | |
Sexual orientation | |||||||
 Other orientation | 1 750 | 60 | 3.4 | Ref |  | Ref |  |
 Homosexual orientation | 2 488 | 126 | 5.1 | 1.5 ( 1.1 ~ 2.1 ) | 0.01 | 1.6 ( 1.1 ~ 2.2 ) | 0.01 |
Occupations | |||||||
 Non-students | 3 684 | 160 | 4.3 | Ref |  | Ref |  |
 Students | 554 | 26 | 4.7 | 1.1 ( 0.7 ~ 1.7 ) | 0.71 | 0.8 ( 0.5 ~ 1.3 ) | 0.30 |
Monthly income (USD) | Â | Â | Â | Â | Â | Â | |
 No income | 747 | 31 | 4.2 | Ref |  | Ref |  |
 1-600 | 1 908 | 86 | 4.5 | 1.1 ( 0.7 ~ 1.7 ) | 0.69 | 1.5 ( 1.0 ~ 2.4 ) | 0.06 |
  > = 600 | 1 583 | 69 | 4.4 | 1.1 ( 0.7 ~ 1.8) | 0.82 | 1.6 ( 1.0 ~ 2.6 ) | 0.06 |
Ethnics | |||||||
 Non-Han | 276 | 12 | 4.4 | Ref |  | Ref |  |
 Han | 3 962 | 174 | 4.4 | 1.0 ( 0.6 ~ 1.8 ) | 0.97 | 1.1 ( 0.6 ~ 2.1 ) | 0.74 |
Main venue of seeking male sexual partners | |||||||
 Non-Internet | 1 359 | 56 | 4.1 | Ref |  | Ref |  |
 Internet | 2 879 | 130 | 4.5 | 1.1 ( 0.8 ~ 1.5 ) | 0.56 | 1.0 ( 0.7 ~ 1.4 ) | 0.98 |
Knowledge about prevention of HIV | |||||||
 Inadequate | 2 335 | 77 | 3.3 | Ref |  | Ref |  |
 Adequate | 1 903 | 109 | 5.7 | 1.8 ( 1.3 ~ 2.4 ) | <0.01 | 1.4 ( 1.0 ~ 2.0 ) | 0.04 |
Age of initial sex (years) | |||||||
 0-15 | 271 | 7 | 2.6 | Ref |  | Ref |  |
 16-25 | 3 617 | 169 | 4.7 | 1.9 ( 0.9 ~ 4.0 ) | 0.12 | 1.5 ( 0.7 ~ 3.3 ) | 0.30 |
  > = 26 | 350 | 10 | 2.9 | 1.1 ( 0.4 ~ 3.0 ) | 0.84 | 1.0 ( 0.4 ~ 2.8 ) | 0.98 |
Gender of initial sexual partner | |||||||
 Female | 1 467 | 63 | 4.3 | Ref |  | Ref |  |
 Male | 2 771 | 123 | 4.4 | 1.0 ( 0.8 ~ 1.4 ) | 0.83 | 1.0 ( 0.7 ~ 1.5 ) | 0.84 |
Anal sexual experience in last 6Â months | |||||||
 No | 253 | 5 | 2.0 | Ref |  | Ref |  |
 Yes | 3 985 | 181 | 4.5 | 2.4 ( 1.0 ~ 5.8 ) | 0.06 | 2.4 ( 1.0 ~ 5.9) | 0.06 |
Predominant sex position in last 6Â months | |||||||
 Receptive only or both | 2 975 | 147 | 4.9 | Ref |  | Ref |  |
 Insertive only | 1 263 | 39 | 3.1 | 0.6 ( 0.4 ~ 0.9 ) | 0.01 | 0.5 ( 0.4 ~ 0.8 ) | <0.01 |
Used condom at last anal sex with male partners | |||||||
 No | 1 168 | 57 | 4.9 | Ref |  | Ref |  |
 Yes | 3 070 | 129 | 4.2 | 0.9 ( 0.6 ~ 1.2 ) | 0.34 | 0.9( 0.7 ~ 1.3 ) | 0.52 |
No. of male sexual partners in last 6Â months | |||||||
  < =2 | 2 614 | 100 | 3.8 | Ref |  | Ref |  |
  > 2 | 1 624 | 86 | 5.3 | 1.4 ( 1.1 ~ 1.9 ) | 0.02 | 1.4 ( 1.1 ~ 1.9 ) | 0.02 |
Used condom at last oral sex with male partners | |||||||
 No | 3 841 | 169 | 4.4 | Ref |  | Ref |  |
 Yes | 397 | 17 | 4.3 | 1.0 ( 0.6 ~ 1.6 ) | 0.91 | 0.9 ( 0.5 ~ 1.5 ) | 0.66 |
Having foreign male sexual partners in last 6Â months | |||||||
 No | 4 188 | 181 | 4.3 | Ref |  | Ref |  |
 Yes | 50 | 5 | 10.0 | 25 ( 1.0 ~ 63 ) | 0.06 | 1.8 ( 0.7 ~ 4.7 ) | 0.220 |
Having female sexual partners in last 6Â months | |||||||
 No | 3 463 | 158 | 4.6 | Ref |  | Ref |  |
 Yes | 775 | 28 | 3.6 | 0.8 ( 0.5 ~ 1.2 ) | 0.24 | 0.8 ( 0.5 ~ 1.3 ) | 0.33 |
Recreational drug use in last 6Â months | |||||||
 No | 3 055 | 116 | 3.8 | Ref |  | Ref |  |
 Yes | 1 183 | 70 | 5.9 | 1.6 ( 1.2 ~ 2.2 ) | 0.01 | 2.2 ( 1.6 ~ 3.0 ) | <0.01 |
STDs-related symptoms in last year | |||||||
 No | 3 924 | 165 | 4.2 | Ref |  | Ref |  |
 Yes | 314 | 21 | 6.7 | 1.6 ( 1.0 ~ 2.6 ) | 0.04 | 1.7 ( 1.1 ~ 2.8 ) | 0.03 |
Anal bleeding in the last 6Â months | |||||||
 No | 3 591 | 137 | 3.8 | Ref |  | Ref |  |
 Yes | 647 | 49 | 7.6 | 2.1 ( 1.5 ~ 2.9 ) | <0.01 | 2.1 ( 1.4 ~ 3.0 ) | <0.01 |
Condom breakage during anal intercourse in last 6Â months | |||||||
 No | 3 864 | 164 | 4.2 | Ref |  | Ref |  |
 Yes | 374 | 22 | 5.9 | 1.4 ( 0.9 ~ 2.2 ) | 0.14 | 1.5 ( 0.9 ~ 2.4 ) | 0.11 |
Circumcision experience | |||||||
 No | 3 882 | 160 | 4.1 | Ref |  | Ref |  |
 Yes | 356 | 26 | 7.3 | 1.8 ( 1.2 ~ 2.8 ) | 0.01 | 2.0( 1.3 ~ 3.1 ) | 0.01 |
Syphilis infection status | |||||||
 No | 3 908 | 153 | 3.9 | Ref |  | Ref |  |
 Yes | 330 | 33 | 10.0 | 2.7 ( 1.8 ~ 4.1 ) | <0.01 | 2.8 ( 1.9 ~ 4.3 ) | <0.01 |
HSV-2 infection status | |||||||
 No | 3 680 | 142 | 3.9 | Ref |  | Ref |  |
 Yes | 481 | 36 | 7.5 | 2.0 (1.4 ~ 2.9 ) | <0.01 | 2.3 (1.5 ~ 3.3 ) | <0.01 |