Table 1

Baseline sociodemographic, sexual and behavioural characteristic of HIV-uninfected MSM on PrEP by rectal infection

Rectal infectionRectal infection
No (n=262)Yes (n=133)P valueNo (n=262)Yes (n=133)P value
N*%†N*%†N*%†N*%†
Demographics
Household monthly income before tax0.25Education level0.23
 <$10002710%86% High school or less2610%86%
 $1000–$19992710%2217% Some college8934%5844%
 $2000–$29993815%2217% College9034%4232%
 $3000–$39993112%1310% Some graduate/Adv5722%2519%
 $4000–$79997228%3023%
 >$80002610%1713%Age (years), mean (SD)37±933±9<0.001
Employment0.31Race0.036
 Employed16162%8766% White18671%9477%
 Part-time4618%2620% African American4818%1714%
 Unemployed4818%1915% Asian/Other83%119%
 Retired/Disabled52%00%
Relationship status0.37Ethnicity0.043
 Committed9135%3728% Hispanic6826%4836%
 Separated73%43% Not Hispanic19173%8564%
 Single16362%9269%
Sexual and risk behaviours
Drug abuse5019%3627%0.063Cocaine use3815%2217%0.57
Alcohol use21482%11084%0.68Heroin use145%22%0.1
Marijuana use11645%7255%0.053Substance use13752%9874%<0.001
Tobacco use8332%5441%0.069Antibiotic use‡7127%3929%0.69
HIV risk factor0.906Condom non-use for ARS‡0.017
 MSM24995%12896% Never249%2015%
 Heterosexual21%00% Rarely/Sometimes6324%6045%
 Both114%54% Always/Often8532%3929%
No. male partners, median (IQR)‡53–1085–100.001No. cARS, median (IQR)§00–210–5<0.001
Rectal douching§<0.001Douching solution§0.623
 Never10440%2418% Water and/or Other5119%3224%
 Less than weekly9436%4433% Water only10640%7657%
 Weekly or more6023%6347%
  • Substance use=any of methamphetamine/hallucinogen/dissociative/popper.

  • *Mean/median for continuous variables.

  • †SD/IQR for continuous variables.

  • ‡Past 3 months at baseline.

  • §Past month at baseline.

  • ARS, anal receptive sex; cARS, condomless anal receptive sex; MSM, men who have sex with men; PrEP, pre-exposure prophylaxis; Substance use, Any of methamphetamine/hallucinogen/dissociative/popper.