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Table 3 Univariate and multivariate analysis of factors associated with willingness to participate in free HIV testing

From: Factors associated with willingness to participate in free HIV test among general residents in Heilongjiang, Northeast China

Variable   Urban residents Rural residents
  Crude RR Adjusted RR Crude RR Adjusted RR
Gender Male 1.00 1.00 1.00 1.00
  Female 0.95(0.90–1.00) 0.99(0.94–1.05) 0.93(0.89–0.98) ** 0.94(0.90–0.98) **
Ethnicity Han 1.00   1.00 1.00
  Minorities 0.99(0.92–1.06)   0.94 (0.88–1.00) * 0.97 (0.92–1.03)
Age (Years) 15–20 1.00 1.00 1.00 1.00
  21–50 1.10(0.97–1.24) 1.13(0.99–1.28) 1.24(1.10–1.40) ** 1.14 (0.99–1.32)
  51–69 1.04(0.91–1.18) 1.09(0.95–1.27) 1.21(1.06–1.37) ** 1.13 (0.98–1.32)
Marital status Single 1.00 1.00 1.00 1.00
  Married/cohabitating 0.95(0.89–1.01) 0.94(0.88–1.01) 1.10(1.02–1.18) * 1.05(0.97–1.15)
  Divorced/widowed 0.87(0.74–1.02) 0.84(0.71–0.99) * 1.17 (1.00–1.37) * 1.07(0.91–1.27)
Education Primary school or less 1.00   1.00  
  Middle school 0.94 (0.85–1.04) 0.89(0.81-0.89)* 1.02 (0.97–1.07) 0.99(0.95–1.04)
  Over high school 0.99 (0.91–1.09) 0.90(0.83-0.99)* 1.05 (0.97–1.14) 0.98(0.90–1.05)
Employment Unemployed 1.00   1.00  
  Employed 1.06 (0.96–1.17)   0.94(0.88–1.00)  
Time in city < 2 years 1.00   1.00  
  ≥ 2 years 0.95 (0.89–1.02)   0.95 (0.88–1.03)  
Household per-capita income (CNY/month) <1000 1.00 1.00 1.00 1.00
1000–2000 1.09(1.02–1.16) ** 1.07(1.01–1.14)* 1.00 (0.95–1.06) 0.98 (0.93–1.03)
≥2000 1.03 (0.94–1.12) 1.01(0.92–1.10) 0.93 (0.85–1.01) 0.92 (0.85–0.99) *
HIV/AIDS Knowledge     
Is AIDS a contagious disease? 1.10(1.02–1.19) * 0.99(0.92–1.08) 1.11 (1.03–1.19) ** 1.02(0.95–1.10)
Can an apparently healthy person be a carrier for HIV? 1.14(1.06–1.22) ** 1.12(1.03–1.21)** 1.13 (1.08–1.19) ** 1.07(1.01–1.13) *
At present, is there a vaccine to protect against HIV? 1.05 (0.99–1.10) 1.00(0.94–1.06) 1.10 (1.05–1.15) ** 0.99(0.94–1.04)
At present, is AIDS curable? 1.02 (0.96–1.08) 0.95(0.89–1.02) 1.11 (1.06–1.17) ** 1.02 (0.97–1.08)
Awareness of transmission modes score 1.05(1.03–1.07) ** 1.02(1.00–1.05) 1.05(1.03–1.06)** 1.03(1.01–1.06)**
Awareness of transmission misconceptions score 1.03(1.02–1.05) ** 1.02(1.00–1.04) * 1.03 (1.02–1.04) ** 1.01(0.99–1.02)
Stigma attitude score 1.00(0.97–1.03)   1.02(1–1.05)  
Total Knowledge score 1.02(1.01–1.03) **   1.02(1.01–1.03) **  
  1. RR: Relative risk (95% CI); * P <0.05; **P <0.01.
  2. Crude RR: Relative risk of univariate analysis.
  3. Adjusted RR: Basic demographic characteristics (i.e., age, gender) and variables that were associated with willingness to accept free HIV testing in univariate analysis among urban residents at the 0.10 significance level were put stepwise in a multivariate log binomial regression model.