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Table 1 Comparison of baseline characteristics of men who have sex by infection status at cohort entry in Bangkok, Thailand, 2006–2012 (n = 960)

From: Incidence of and temporal relationships between HIV, herpes simplex II virus, and syphilis among men who have sex with men in Bangkok, Thailand: an observational cohort

Characteristic Uninfecteda group (n = 960) Remainder of cohort (n = 784) p-value
n, % n, %
Age (years):    0.72
18–21 170, 17.7 % 144, 18.4 %  
22–29 523, 54.5 % 412, 52. 6 %  
≥30 267, 27.8 % 228, 29.1 %  
Education:    <0.01
Primary 11, 1.1 % 47, 6.0 %  
Secondary/Vocational 457, 47.6 % 469, 59.8 %  
University or higher 492, 51.3 % 268, 34.2 %  
Study/Work Status:    <0.01
Studying (or studying and employed) 380, 39.6 % 250, 31.9 %  
Employed 545, 56.8 % 491, 62.6 %  
Unemployed 35, 3.6 % 43, 5.5 %  
Living Situation:    <0.01
With family 413, 43.0 % 246, 31.4 %  
With partner 128, 13.3 % 133, 17.0 %  
Alone/with roommate 419, 43.6 % 405, 51.7 %  
Sexual Identity:    0.44
Homosexual 741, 77.2 % 615, 78.4 %  
Bisexual 211, 22.0 % 158, 20.2 %  
Transgender 8, 0.8 % 11, 1.4 %  
Binge drinking 92, 9.6 % 116, 14.8 % <0.01
Use club drugsb,c 178, 18.5 % 191, 24.4 % <0.01
Use nitrate inhalantsc 152, 15.8 % 168, 21.4 % <0.01
Use drugs to enhance sexc 135, 14.1 % 171, 21.8 % <0.01
Use erectile dysfunction drugsc 96, 10.0 % 106, 13.5 % 0.02
Engage in group sexc 320, 33.3 % 301, 38.4 % 0.03
Coerced into sexc 155, 16.1 % 146, 18.6 % 0.17
Pay for sexc 140, 14.6 % 114, 14.5 % 0.98
Receive money for sexc 147, 15.3 % 187, 23.9 % <0.01
Casual male partners:c    0.02
0–2 389, 40.5 % 274, 34.9 %  
≥3 571, 59.5 % 510, 65.1 %  
Condom use with casual male partners:c    <0.01
Consistent (always) 444, 46.3 % 349, 44.5 %  
Sometimes 203, 21.1 % 221, 28.2 %  
Never 44, 4.6 % 22, 2.8 %  
No anal intercourse 269, 28.0 % 192, 24.5 %  
  1. aHIV, herpes simplex-2 virus, and syphilis
  2. bClub drugs include cannabis, 3,4-methylenedioxy-N-methylamphetamine (MDMA or ecstasy), amphetamine, methamphetamine, ketamine, cocaine, and gamma hydroxy butyrate (GHB)
  3. cIn the last four months from time of enrollment