Variable | HIV(+/-) | t(Z)orχ2 | HBsAg (+/-) | t(Z)orχ2 | HCV (+/-) | t(Z)orχ2 | syphilis(+/-) | t(Z)orχ2 |
---|---|---|---|---|---|---|---|---|
Sex: | Â | Â | Â | Â | Â | Â | Â | Â |
male | 31/648 | 0.01 | 129/550 | 0.56 | 493/186 | 3.93* | 76/603 | 14.16* |
female | 3/58 | Â | 14/47 | Â | 37 | Â | 17/44 | Â |
Age(year) | Â | Â | Â | Â | Â | Â | Â | Â |
Δ | 34.9/31.1 | 3.15 * | 30.6/31.4 | -1.31 | 31.7/30.2 | 2.78* | 32.4/32.1 | 1.69 |
Ethnicity: | Â | Â | Â | Â | Â | Â | Â | Â |
Han | 34/696 | 0.00 | 142/588 | 0.56 | 525/205 | 2.33 | 90/640 | 2.80 |
Minority | 0/10 | Â | 1/9 | Â | 5/5 | Â | 3/7 | Â |
Marital status: | Â | Â | Â | Â | Â | Â | Â | Â |
single | 9/325 | 6.87 * | 51/283 | 6.44* | 226/108 | 6.94* | 42/292 | 5.84 |
Married or cohabitation | 18/311 | Â | 75/254 | Â | 241/88 | Â | 35/294 | Â |
Divorced or separated | 7/70 | Â | 17/60 | Â | 63/14 | Â | 16/61 | Â |
Education: | Â | Â | Â | Â | Â | Â | Â | Â |
<6 years | 13/278 | 2.75 | 62/229 | 1.34 | 220/71 | 4.15 | 42/249 | 4.50 |
6 years-9 years | 20/347 | Â | 65/302 | Â | 251/116 | Â | 37/330 | Â |
Above 9 years | 1/81 | Â | 16/66 | Â | 59/23 | Â | 14/68 | Â |
Occupation: | Â | Â | Â | Â | Â | Â | Â | Â |
worker | 6/155 | 1.23 | 39/122 | 12.19* | 113/48 | 1.75 | 19/142 | 2.62 |
farmer | 7/111 | Â | 26/92 | Â | 85/33 | Â | 14/104 | Â |
unemployed | 12/218 | Â | 30/200 | Â | 168/62 | Â | 30/192 | Â |
driver | 4/93 | Â | 15/82 | Â | 65/32 | Â | 16/81 | Â |
others | 5/129 | Â | 33/101 | Â | 99/35 | Â | 14/128 | Â |
Monthly income: | Â | Â | Â | Â | Â | Â | Â | Â |
<1000 Yuan | 14/435 | 7.35 | 86/363 | 0.48 | 322/127 | 12.57* | 54/395 | 5.70 |
1000~2000 Yuan | 12/172 | Â | 34/150 | Â | 137/47 | Â | 21/163 | Â |
2000~3000 Yuan | 3/55 | Â | 13/45 | Â | 31/27 | Â | 13/45 | Â |
Above 3000 Yuan | 5/44 | Â | 10/39 | Â | 40/9 | Â | 5/44 | Â |
Registered Residence: | Â | Â | Â | Â | Â | Â | Â | Â |
Qingyuan | 31/602 | 0.91 | 122/511 | 0.01 | 462/171 | 4.00* | 76/557 | 1.25 |
Other regions | 3/104 | Â | 21/86 | Â | 68/39 | Â | 17/90 | Â |
Origin of family: | Â | Â | Â | Â | Â | Â | Â | Â |
unban | 19/359 | 1.21 | 78/297 | 1.49 | 268/107 | 0.51 | 40/335 | 13.09* |
Sub-urban | 12/239 | Â | 47/204 | Â | 183/68 | Â | 46/205 | Â |
city | 3/111 | Â | 18/96 | Â | 79/35 | Â | 7/107 | Â |
Knowledge score | Â | Â | Â | Â | Â | Â | Â | Â |
Δ | 13.7/14.1 | 0.34 | 13.9/14.1 | -0.29 | 14.1/14.0 | 0.29 | 14.0/14.1 | -0.08 |
Total numbers of admission to MDC Δ | 2.0/2.0 | 0.07 | 2.0/2.0 | 0.43 | 2.0/2.0 | 3.55* | 2.0/2.0 | 2.01* |
Age at first drug use Δ | 26.7/23.5 | 2.71 * | 23.1/23.1 | -1.35 | 23.8/23.3 | 0.74 | 24.0/23.6 | 0.54 |
Duration of drug use: | Â | Â | Â | Â | Â | Â | Â | Â |
≥ 5 years vs. <5 years | 7.89/7.73 | 0.76 | 6.1/8.0 | 0.50 | 7.9/5.4 | 2.79* | 9.8/7.5 | 1.31 |
Ever used combined drugs: | Â | Â | Â | Â | Â | Â | Â | Â |
Y | 8/232 | 1.28 | 47/193 | 0.01 | 169/71 | 0.25 | 37/203 | 2.62 |
N | 26/474 | Â | 96/404 | Â | 361/139 | Â | 56/444 | Â |
Continued table 1 | ||||||||
Ever injected drug in past 12 months before entering MDC: | Â | Â | Â | Â | Â | Â | Â | Â |
Y | 33/519 | 9.49 * | 105/447 | 0.12 | 427/125 | 35.14* | 75/477 | 2.05 |
N | 1/187 | Â | 38/150 | Â | 103/85 | Â | 18/170 | Â |
Age at first injection Δ | 27.1/25.0 | 1.81 | 25.4/25.2 | 0.32 | 25.3/24.9 | 0.66 | 24.7/25.3 | -0.85 |
Duration of injection Δ | 6.0/6.0 | 0.03 | 5.0/6.0 | 1.32 | 7.0/6.0 | 0.31 | 6.0/7.0 | 0.74 |
Frequency of injection in past 3 months before entering MDC: | Â | Â | Â | Â | Â | Â | Â | Â |
≤1time/day | 13/269 | 2.19 | 55/227 | 0.20 | 218/64 | 5.38 | 35/247 | 2.44 |
2~3 time/day | 17/206 | Â | 42/181 | Â | 177/46 | Â | 31/192 | Â |
≥4 time/day | 3/44 |  | 8/39 |  | 32/15 |  | 9/38 |  |
Ever shared needle and/or syringe in the last injection: | Â | Â | Â | Â | Â | Â | Â | Â |
Y | 7/128 | 0.20 | 30/105 | 1.18 | 106/29 | 0.13 | 22/113 | 1.11 |
N | 26/391 | Â | 75/342 | Â | 321/96 | Â | 53/364 | Â |
Ever shared need and/or syringe in last 3 months before entering MDC: | Â | Â | Â | Â | Â | Â | Â | Â |
Y | 14/191 | 0.42 | 46/159 | 2.47 | 164/41 | 1.30 | 24/181 | 0.98 |
N | 19/328 | Â | 59/288 | Â | 263/84 | Â | 51/296 | Â |
regular sex partners ever used drug: | Â | Â | Â | Â | Â | Â | Â | Â |
Y | 0/29 | 0.92 | 11/18 | 4.79* | 19 | 1.39 | 8/21 | 6.90* |
N | 29/445 | Â | 98/376 | Â | 357 | Â | 53/421 | Â |
Consistent condom use with regular sex partner in past 3 months before enteringMDC: | Â | Â | Â | Â | Â | Â | Â | Â |
Y | 6/111 | 0.01 | 25/92 | 0.01 | 84 | 0.75 | 20/97 | 2.74 |
N | 17/298 | Â | 66/249 | Â | 239 | Â | 35/280 | Â |
Consistent condom use with non-regular sex partner in past 3 months before entering MDC: | Â | Â | Â | Â | Â | Â | Â | Â |
Y | 4/86 | 0.00 | 23/67 | 5.64 | 57 | 1.78 | 11/79 | 0.08 |
N | 5/113 | Â | 15/103 | Â | 85 | Â | 16/102 | Â |
ever had commercial sex in past 12 months before entering MDC: | Â | Â | Â | Â | Â | Â | Â | Â |
Y | 11/157 | 1.89 | 32/136 | 0.01 | 115 | 1.07 | 37/131 | 17.68 |
N | 23/549 | Â | 111/461 | Â | 415 | Â | 56/516 | Â |
Consistent condom use with commercial sex partner in past 3 months before entering MDC: | Â | Â | Â | Â | Â | Â | Â | Â |
Y | 2/61 | 1.09 | 5/58 | 8.07 * | 32 | 15.71* | 12/51 | 0.33* |
N | 9/96 | Â | 27/78 | Â | 84 | Â | 24/81 | Â |