Table 3.

Demographic and behavioral characteristics of men who have sex with men (MSM) on pre-exposure prophylaxis (PrEP), stratified by drug use (N = 172)

Characteristic	Drug use (n = 98)		No drug use (n = 74)		Test statistic (W or Chi square)	p-value
	N	%	N	%
Age					3.33	0.343
< 25 year	22	22.5	10	13.5
25–34 years	40	40.8	28	37.8
35–44 years	19	19.4	19	25.7
≥ 45 years	17	17.4	17	23.0
Race					4.50	0.105
Black/African American	10	10.2	9	12.2
White	69	70.4	41	55.4
Multiracial/other/unknown	19	19.4	24	32.4
Ethnicity*					1.53	0.216
Not Hispanic/Latino	77	81.9	54	74.0
Hispanic/Latino	17	18.1	19	26.0
Annual income					1.25	0.740
Less than $12,000	22	22.5	13	17.6
$12,000-$29–999	14	14.3	13	17.6
$30,000-$59,999	35	35.7	24	32.4
$60,000 or greater	27	27.6	24	32.4
Education level¶					4.19	0.123
High school diploma or less	17	17.9	14	19.2
Some college	59	62.1	35	48.0
College diploma or higher	19	20.0	24	32.9
Sexual risk category					3.66	0.059
Sex with men only	88	89.8	72	97.3
Sex with men and women	10	10.2	2	2.7
Total number of sex partners, past 3 months (median, IQR)	4	(2–8)	3	(1–5)	2981.5	0.122
Number of condomless anal sex partners, past 3 months (median, IQR)	1	(1–3)	1	(1–3)	3035.00	0.381
Sex with a known HIV+ partner, past 3 months	20	20.4	15	20.4	< 0.01	0.990
Depression
Positive screen (PHQ-2 of 3+)	6	6.1	1	1.4	2.46	0.135
Unhealthy alcohol use	61	62.9	32	43.2	6.13	0.011
Any heavy episodic drinking	53	54.1	23	31.1	9.04	0.003
Weekly or more heavy episodic drinking	11	11.2	3	4.1	2.90	0.095
How often did you have 6+ drinks at one time (last 3 months)					9.82	0.044
Never	45	45.9	51	68.9
Less than monthly	24	24.5	11	14.9
Monthly	18	18.4	9	12.2
Weekly	10	10.2	3	4.1
Daily or almost daily	1	1.0	0	0.0

AUDIT-C score was not computed for one participant

^*Represents data on 167 individuals as data were missing for 5 participants

^¶Represents data on 168 individuals as data were missing for 4 participants