Table IV.

Multivariable associations with current PrEP use vs. never use of PrEP

	WHSPP				UNITE
	Model A (n=277a)		Model B (n=240a)		Model A (n=1868a)		Model B (n=1782a)
	aRR(95% CI)	P-value	aRR (95% CI)	P-value	aRR (95% CI)	P-value	aRR (95% CI)	P-value
Spanish language	1.49 (0.83, 2.65)	0.178	1.16 (0.61, 2.18)	0.652	0.73 (0.29, 1.88)	0.518	0.73 (0.28, 1.87)	0.506
Age	1.02 (1.00, 1.04)	0.103	1.03 (1.01, 1.05)	0.013	1.00 (0.98, 1.02)	0.811	0.99 (0.98, 1.01)	0.207
Education		0.029		0.185		0.002		0.001
Less than high school	Ref		Ref		Ref		Ref
High school or GED	0.52 (0.05, 5.39)		0.47 (0.05, 4.36)		3.53 (0.47, 26.81)		3.28 (0.43, 24.98)
Some college	2.16 (0.29, 15.83)		1.59 (0.24, 10.64)		3.46 (0.48, 24.66)		3.16 (0.44, 22.70)
Bachelor’s degree or higher	3.33 (0.47, 23.77)		2.04 (0.31, 13.51)		6.72 (0.94, 48.06)		6.35 (0.88, 45.80)
Has health insurance	3.73 (1.04, 13.37)	0.043	2.91 (0.81, 10.46)	0.102	2.33 (1.35, 4.03)	0.003	2.42 (1.41, 4.15)	0.001
Recruited from geospatial sexual networking appsb	1.30 (0.78, 2.16)	0.316	1.21 (0.71, 2.04)	0.479	1.56 (0.62, 3.94)	0.255	1.45 (0.57, 3.71)	0.440
Total number of male sex partners in the past 12 months			1.01 (1.01, 1.02)	0.001			-
Total number of casual male sex partners in the past 3 months			-				1.01 (1.00, 1.02)	0.001
Any condomless anal sex (CAS) with unknown or HIV positive status partners			0.99 (0.58, 1.70)	0.985			-
Any condomless anal sex (CAS) with unknown or HIV positive status casual partners			-				1.38 (0.84, 2.28)	0.205
Drug use (injection drugs, meth, or poppers)			1.12 (0.66, 1.89)	0.683			2.01 (1.42, 2.86)	<0.001

^aObservations with missing data on one or more variables were dropped from regression analyses

^bFor regression analyses, recruitment through social media was grouped with recruitment through other websites/apps and used as the referent category.