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Table 3 Multivariable Poisson regression for sexual health outcomes and its association with substance using classes

From: Delineating patterns of sexualized substance use and its association with sexual and mental health outcomes among young gay, bisexual and other men who have sex with men in Singapore: a latent class analysis

  Unprotected anal sex with casual partners in the last six months (n = 96) STI diagnoses in the last six months (n = 39)
PR 95% CI aPR 95% CI PR 95% CI aPR 95% CI
Age 0.94 (0.87, 1.02) 0.91 (0.84, 0.99) 0.95 (0.83, 1.08) 0.92 (0.80, 1.06)
Chinese ethnicity (Ref = Non-Chinese) 0.83 (0.53, 1.32) 0.85 (0.53, 1.36) 0.75 (0.35, 1.57) 0.72 (0.35, 1.51)
Cisgender male (Ref = Transgender, genderqueer, or others) 0.83 (0.45, 1.53) 0.77 (0.43, 1.37) 1.59 (0.39, 6.37) 1.42 (0.36, 5.63)
Gay (Ref = Bisexual, queer, or others) 1.13 (0.74, 1.71) 1.04 (0.67, 1.60) 1.32 (0.64, 2.73) 1.19 (0.57, 2.46)
Monthly household income ≥ SGD5000 (Ref < SGD5000) 0.82 (0.55, 1.22) 0.79 (0.52, 1.19) 0.90 (0.47, 1.72) 0.88 (0.46, 1.67)
Classes
 Substance-naïve Ref Ref Ref Ref Ref Ref Ref Ref
 Substance-novice 1.99 (1.36, 2.92) 2.24 (1.51, 3.33) 1.93 (1.03, 3.61) 2.01 (1.05, 3.85)
 Chemsex 3.10 (1.75, 5.49) 3.28 (1.85, 5.79) 1.60 (0.40, 6.39) 1.64 (0.42, 6.38)
  1. Notes
  2. Abbreviations: CI Confidence Interval, PR Prevalence Ratio, aPR Adjusted Prevalence Ratio
  3. Statistically significant (p < 0.05) are highlighted in bold font