Table 4.

Association between participant characteristics and moderate-to-high perceived risk of HIV

	Univariable		Multivariable
	OR (95% CI)	p	OR (95% CI)	p
Age (by decade)	1.2 (0.9, 1.4)	0.2
Ethnicity
White	1.0
Black	0.9 (0.3, 2.8)	0.8
East Asian	0.7 (0.4, 1.4)	0.4
Latino/Hispanic	1.6 (0.8, 3.2)	0.2
Middle Eastern	1.1 (0.4, 2.7)	0.9
South Asian	0.5 (0.17, 1.5)	0.2
Other/mixed	1.3 (0.5, 3.7)	0.6
Education
College/university	1.0		1.0
High school	3.1 (1.7, 5.8)	<0.001	2.1 (1.0, 4.4)	0.05
Employed full time	1.3 (0.8, 2.2)	0.3
Has and is comfortable with family doctor	0.7 (0.5, 1.1)	0.09
Has private drug coverage	1.0 (0.6, 1.5)	0.9
HIRI-MSM score (per 10 point increment)	2.1 (1.6, 2.7)	<0.001	1.7 (1.2, 2.3)	0.001
Concerned about HIV risk	8.4 (5.1, 13.7)	<0.001	7.3 (4.3, 12.5)	<0.001
Aware of PEP	1.0 (0.6, 1.7)	0.9
Prior use of PEP	2.3 (1.1, 4.7)	0.03
Aware of PrEP	1.3 (0.8, 2.2)	0.3
Heard about PrEP from healthcare provider	1.5 (0.9, 2.7)	0.2
Heard about PrEP from friend	1.1 (0.7, 1.8)	0.7
Heard about PrEP from media	0.8 (0.5, 1.4)	0.5
Willingness to pay for PrEP out-of-pocket	1.0 (0.4, 2.3)	1.0
Condom use
Always	1.0
Less than always	4.7 (2.5, 8.9)	<0.001
Speculated condom use if on PrEP
No change	1.0
Decreased condom use	1.0 (0.6, 1.6)	1.0
Past history of bacterial STIa	2.2 (1.4, 3.5)	<0.001	2.1 (1.2, 3.7)	0.009
Past history of any STIb	2.1 (1.7, 3.3)	<0.001

^aBacterial STI=gonorrhoea, chlamydia or syphilis

^bAny STI=gonorrhoea, chlamydia, syphilis, genital herpes or genital warts; €= constructed using forward selection, variables retained if alpha ≤ 0.1. Bold value indicates p<0.05.