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Table 2 Sociodemographic and sexual behavioral characteristics of index HIV cases in Taizhou prefecture, Eastern China, 2008-2010

From: Tracing sexual contacts of HIV-infected individuals in a rural prefecture, Eastern China

Characteristics Heterosexually infected Homosexually infected Total
n1 = 298 Proportion (%) n2 = 100 Proportion (%) n3 = 398 Proportion (%)
Gender (χ 2 = 47.24, P < 0.001)
Male 194 65.1 100 100.0 294 73.9
Female 104 34.9 104 26.1
Age (years) (χ 2 = 29.97, P < 0.001)
18-25 50 16.8 32 32.0 82 20.6
26-35 94 31.5 46 46.0 140 35.2
36-45 78 26.2 16 16.0 94 23.6
≥46 76 25.5 6 6.0 82 20.6
Ethnicity (χ 2 = 6.695, P = 0.010)
Han 279 93.6 100 100.0 379 95.2
others 19 6.4 0 0.0 19 4.8
Marital status (χ 2 = 37.6, P < 0.001)
Currently Married 200 67.1 42 42.0 242 60.8
Never married 63 21.1 53 53.0 116 29.1
Divorced or widowed 31 10.4 5 5.0 36 9.0
Unknown 4 1.3 0 0.0 4 1.0
Official residency (χ 2 = 1.524, P = 0.218)
Local (i.e., study area) 216 72.5 66 66.0 282 70.9
Non-local 82 27.5 34 34.0 116 29.1
Ever had non-commercial casual heterosexual partners or sexual contacts in the past 12 months (χ 2 = 21.27, P < 0.001)
Yes 80 26.8 5 5.0 85 21.4
No 218 73.2 95 95.0 313 78.6
Ever had commercial heterosexual partners or sexual contacts in the past 12 months (χ 2 = 188.6, P < 0.001)
Yes 233 78.2 0 0.0 233 58.5
No 65 21.8 100 100.0 165 41.5
Ever had long-term homosexual partners or sexual contacts in the past 12 months
Yes 91 91.0 91 91.0
No 9 9.0 9 9.0
Ever had non-commercial casual homosexual partners or sexual contacts in the past 12 months
Yes 80 80.0 80 80.0
No 20 20.0 20 20.0
Ever had commercial homosexual partners or sexual contacts in the past 12 months
Yes 63 63.0 63 63.0
No 37 37.0 37 37.0
Total number of sexual partners or sexual contacts in the past 12 months (χ 2 = 26.04, P < 0.001)
1 52 17.4 0 0.0 52 13.1
2-4 50 16.8 27 27.0 77 19.3
5-9 57 19.1 29 29.0 86 21.6
10-19 85 28.5 23 23.0 108 27.1
20 or more 54 18.1 21 21.0 75 18.8
Condom use for sex with sexual contacts in the past 12 months (χ 2 = 1.673, P = 0.196)
Consistently 0 0.0 0 0.0 0 0.0
Inconsistently 200 67.1 60 60.0 260 65.3
Never 98 32.9 40 40.0 138 34.7
Reported having sexual partners or sexual contacts with known HIV positive status (χ 2 = 0.312, P = 0.576)
Yes 19 6.4 8 8.0 27 6.8
No 279 93.6 92 92.0 371 93.2
  1. n1 number of index HIV cases infected heterosexually; n2: number of index HIV cases infected homosexually; n3: total number of index cases.