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Table 1 Univariate analysis results between the socio-demographic characteristics and HIV infection

From: What are the risk factors for HIV in men who have sex with men in Ho Chi Minh City, Vietnam?- A cross-sectional study

Variables HIV Infection status   
Total N (%) HIV(+) HIV(-) Unadjusted OR/(95%CI)c p- valued
Total 397 59 (14.8) 338 (84.7)   
Age     Mean difference  
Mean (SD) 26.8 (8.1) 30.0 (6.5) 26.3 (8.3) 3.31 (1.80-5.60) <0.001***a
Age Group (n)      
 Over 25 183 (46.1) 46 (78.0) 137 (40.5) 5.19 (2.70-9.97) <0.001***
 25 or less 214 (53.9) 13 (22.0) 201(59.5) 1  
Monthly income (VND million)b      
 Mean (SD) 2.05 (1.2) 1.7 (0.9) 2.1 (1.4) -0.86 (-0.68 to -0.12)ǂ 0.005**
 Median 1.8     
 Range 0.1 – 8.5     
Income group per month      
 Low (≤1.0VND million) 101 (25.7) 18 (30.5) 81 (24.0) 1.69 (0.82-3.52) 0.331
 Medium (1.0-2.0) 154 (39.6) 25 (42.4) 129 (38.2) 1.48 (0.75-2.90)  
 High (>2.0) 138 (35.1) 16 (27.1) 122 (36.1) 1  
Education Level (n)      
 Low (Under grade 5) 95 (23.9) 19 (32.2) 75 (22.2) 3.40 (1.50-7.68) 0.004**
 Medium (Grade 6-9) 159 (39.8) 30 (50.8) 129 (38.2) 3.12 (1.46-6.63)  
 High (Grade 10 or over) 145 (36.3) 10 (16.9) 134 (39.6) 1  
Employment status(n)      
 Unemployed 85 (21.8) 17 (28.8) 68 (20.1) 1.61 (0.86 – 3.00) 0.133
 Employed 312 (78.2) 42 (71.2) 270 (79.9) 1  
Self-identification      
 Straight 115 (28.8) 20 (33.9) 95 (28.1) 1 0.600
 Bóng kín 273 (68.4) 38 (64.4) 233 (68.9) 0.77 (0.43-1.40)  
 Bong lo (homosexual) 11 (2.8) 1 (1.7) 10 (3.0) 0.48 (0.06-3.920  
Sexual orientation      
 Bisexual 191 (47.9) 31 (52.5) 160 (47.4) 1 0.276
 Heterosexual 13 (3.2) 0 (0) 13 (3.8) -  
 Homosexual 195 (48.9) 28 (47.5) 165 (48.8) 0.88 (0.50-1.52)  
Ever married a woman      
 Yes 44 (11.0) 8 (13.6) 36 (10.7) 1.32 (0.58-2.99) 0.206
 No 355 (89.0) 51 (86.4) 302 (89.3) 1  
  1. aComparing mean difference between HIV(+) and HIV(-) using independent sample t test
  2. b1USD ≈ 18,000 - 20,000VND at the end of 2009 and beginning of 2010 (at interview time)
  3. c95%CI: 95% confidence interval
  4. d* P<0.05; ** P<0.01; ***P<0.001 (2-tailed tests).