Table 2.

Same-day and next-day associations between substance use and missed PrEP dosing.

	Model 1:a Same Day Missed PrEP			Model 2:b Next Day (Lagged) Missed PrEP
	B	Exp(B)	95%CI	B	Exp(B)	95%CI
Fixed Components
Level 1: Daily
Intercept	−3.40	0.03***	[0.01, 0.08]	−3.28	0.04***	[0.02, 0.09]
Weekend (1 = yes)	0.38	1.46**	[1.16, 1.85]	0.11	1.12	[0.93, 1.34]
Collection method (1 = diary)	0.49	1.63	[0.91, 2.93]	0.50	1.64	[0.93, 2.90]
Club drug use (1 = yes)	0.44	1.55*	[1.01, 2.38]	0.47	1.60*	[1.06, 2.42]
Marijuana use (1 = yes)	0.29	1.34	[0.82, 2.18]	0.33	1.39	[0.85, 2.29]
Heavy drinking (1 = yes)	0.07	1.07	[0.82, 1.39]	0.07	1.07	[0.79, 1.45]
Level 2: Individuals
Club drug user (1 = yes)	−0.01	0.99	[0.49, 2.00]	0.04	1.04	[0.53, 2.07]
Age	0.00	1.00	[0.95, 1.05]	0.00	1.00	[0.96, 1.05]
White race (1 = yes)	−0.01	0.99	[0.49, 2.00]	−0.04	0.96	[0.48, 1.93]
College degree (1 = yes)	−1.08	0.34**	[0.16, 0.74]	−1.12	0.33**	[0.15, 0.70]
Partnered (1 = yes)	0.40	1.50	[0.78, 2.87]	0.40	1.49	[0.78, 2.83]
Random Components
Intercept variance	1.64**	--	[0.89, 3.05]	1.52**	--	[0.79, 2.96]
L1 Club drug use slope variance	0.19	--	[0.04, 0.90]	0.12	--	[0.01, 1.19]
L1 Marijuana use slope variance	0.77*	--	[0.35, 1.67]	0.80**	--	[0.38, 1.69]
L1 Heavy drinking slope variance	0.10	--	[0.02, 0.47]	0.16	--	[0.05, 0.55]

Note. N = 104

^aN_days = 9,532

^bN_days = 9,302.