Table 2.

Differences in Age, Alcohol Use, Sexual Risk Behavior and Perceived Risk of HIV between PrEP Aware and PrEP Unaware Participants.

	Full sample (N = 506)		Aware of PrEP (n = 451)		Not aware of PrEP (n = 55)		t	df	p	Cohen’s d
	M	SD	M	SD	M	SD
Age	24.83	3.27	24.87	3.32	24.51	2.80	−0.89	74	.37	.11
Alcohol use (past month)
Drinking days per week	2.11	1.89	1.97	1.83	3.26	1.98	4.69	503	<.001**	.67
Drinks per drinking day	3.78	3.45	3.57	3.14	5.47	5.08	4.63	75	<.001**	.57
Heavy drinking days	3.82	6.18	3.21	5.41	8.84	9.15	4.57	71	<.001**	.60
Maximum number of drinks in 24 hours	6.48	5.94	5.95	5.47	10.83	7.66	5.36	495	<.001**	.77
Drinks per week	11.09	19.21	9.62	14.81	23.13	38.11	5.15	503	<.001**	.74
Number of times alcohol used before or during sex	2.92	5.21	2.47	4.23	6.53	9.39	5.88	73	<.001**	.74
AUDIT score	9.50	8.14	8.65	7.50	16.29	9.84	5.85	497	<.001**	.84
RAB score	7.94	2.40	7.82	2.24	8.47	2.57	1.22	61	.226	.21
PRHS score	23.99	6.44	23.59	6.03	27.30	8.53	3.41	60	.001**	.68

Note. AUDIT = Alcohol Use Disorders Identification Test; PRHS = Perceived Risk of HIV Scale; RAB = Risk Assessment Battery.

Those not reporting past-month drinking had zero entered for drinks per drinking day. Data were transformed for analyses to reduce skewness. Raw results are reported here for ease of interpretation. Drinking days per week, maximum number of drinks in 24 hours, AUDIT score, and PRHS score were square-root transformed. Drinks per drinking day, drinks per week, number of times alcohol used before or during sex, and RAB scores were log transformed. Number of sex partners and condomless sex were winsorized and log transformed. Heavy drinking days and number of times alcohol use before or during sex were winsorized and inverse transformed. Signs were reversed to be in line with raw versions of the variables for inverse transformed variables.

^**p < 0.001;

^*p < 0.01