Table 3.
Multivariable Poisson regression for sexual health outcomes and its association with substance using classes
| 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) |
Notes
Abbreviations: CI Confidence Interval, PR Prevalence Ratio, aPR Adjusted Prevalence Ratio
Statistically significant (p < 0.05) are highlighted in bold font