Table 2

Poisson regression predicting likelihood of one or more HIV/STI diagnoses among substance-using young adults (N=602)†

BSEX 2 OR95% CI
Demographics
 Foster care history0.530.303.12*1.69–0.06 to 1.11
 Gender (ref=female)–0.360.184.16*0.70–0.71 to -0.01
 Race (ref=Black)
 Hispanic–0.690.611.260.50–1.89 to 0.51
 White-0.210.31
 Other0.420.31
Sexual behaviours
 Group sex participation history0.560.284.01*1.760.01 to 1.12
 Condomless sex frequencies‡0.000.000.181.00–0.01 to 0.00
Substance use-related measures
 Days ecstasy use‡–0.000.010.780.99–-0.02 to 0.01
 Substance dependence symptoms§–0.060.080.590.94–-0.22 to 0.10
 High during sex almost all the time‡0.110.270.161.11–0.42 to 0.63
Victimisation history
 Sexual victimisation1.160.3114.29***3.180.56 to 1.76
Additional health and social problems
 Mental distress symptoms§0.010.030.151.01–0.04 to 0.07
 Homelessness history–0.240.300.670.79–0.82 to 0.34
Interactions
 Foster care × group sex participation–0.600.303.94*0.83–1.20 to –0.01
 Foster care × sexual victimisation–0.180.280.440.55–0.73 to 0.36
 Foster care × homelessness0.430.292.201.54–0.14 to 1.00
 Foster care × high during sex almost all the time–0.070.270.070.93–0.59 to 0.45
  • *p<0.05; **p<0.01; ***p<0.001.

  • †22% (134/602) with one or more HIV/STI diagnoses;

  • ‡Past 90 days.

  • §Past year.

  • STI, sexually transmitted infection.