TABLE 3.

Comparing relationship characteristic differences in HIV-positive and discordant gay male couples who did not use substances with sex outside the relationship to those with one or both partners who did

	Marijuana	EDM		Party drugsa
Sample size: dyads	By one partner (N = 8)	By one partner (N = 11)	By both partners (N = 3)	By one partner (N = 2)	By both partners (N = 1)
Between couple-level characteristic	RRR (95 % CI)	RRR (95 % CI)	RRR (95 % CI)	RRR (95 % CI)	RRR (95 % CI)
Investment model
Relationship satisfaction					0.22 (0.05–0.92)*
Quality of alternatives	2.56 (1.00–6.54)*	3.09 (1.08–8.82)*
Trust scale
Dependability		3.34 (1.13–9.90)*		0.03 (0.01–0.11)**
Communication patterns scale
Mutual constructive			0.51 (0.26–1.01)*

Findings in this table were produced from couple-level multinomial logistic regression analyses which controlled for relationship length and only included couples who had one or both partners that had sex outside the relationship

EDM erectile dysfunction medications

*p < 0.05; **p < 0.01

^aRepresents ecstasy, ketamine, GHB, cocaine, and methamphetamine