Table 4.

Factors associated with sexualized drug use during the follow-up period (among those being followed up at Month 6, n=407)^a.

Factors		ORb (95% CI)	AORc (95% CI)
Influence of social media/gay apps related to sexualized drug use
	Influence of Social Media Scale	1.23 (1.13, 1.34)d	1.11 (1.01, 1.22)e
Influence of peers related to sexualized drug use
	Number of peers in one’s social network who had ever engaged in SDU/chemsex	2.29 (1.67, 3.14)d	1.43 (0.95, 2.16)f
Perceptions related to sexualized drug use based on the Theory of Planned Behavior
	Positive Attitude Scale	1.33 (1.19, 1.47)d	1.19 (1.05, 1.36)g
	Negative Attitude Scale	0.86 (0.76, 0.97)e	0.99 (0.84, 1.16)
	Perceived Subjective Norm Scale	1.29 (1.18, 1.42)d	1.15 (1.01, 1.30)e
	Perceived Behavioral Control of Refusing Sexualized Drug Use Scale	1.33 (1.15, 1.55)d	1.08 (0.89, 1.33)
	Perceived Behavioral Control of Refraining from Sexualized Drug Use Scale	0.76 (0.64, 0.91)g	0.76 (0.59, 0.98)e

^a6.9% of participants reported sexualized drug use during the follow-up period.

^bOR: univariate odds ratio. The OR represents the increase in the odds of sexualized drug use caused by a one-unit increase in the item/scale score.

^cAOR: adjusted odds ratio. The AOR is adjusted for the significant background variables listed in Table 3 and multiple sex partnerships in the past year.

^dP<.001.

^eP<.05.

^f.05<P<.10.

^gP<.01.