Cannabis use frequency, route of administration, and co-use with alcohol among older adults in Washington state

Table 3 Results from multinomial regression models^a of past 12-month cannabis use frequency regressed on route of cannabis administration, 2014–2016 Washington state general population (N = 5429)

	Overall
	50–64								≥65
	Oral^b				Vape and other^b				Oral				Vape and other
	RRR	95% CI		P	RRR	95% CI		P	RRR	95% CI		P	RRR	95% CI		P
Frequency among past 12-month cannabis users (ref = infrequent^c)
Regular	1.01	0.43	2.35	0.98	1.36	0.48	3.85	0.56	0.77	0.28	2.16	0.63	5.36	1.38	20.76	0.015
Daily/near daily	0.21	0.07	0.58	0.003	0.83	0.29	2.37	0.73	0.49	0.15	1.65	0.25	6.77	1.68	27.30	0.007
Year	1.70	1.04	2.77	0.03	1.94	1.20	3.13	0.007	0.72	0.42	1.23	0.23	1.27	0.70	2.31	0.43

^aRegressions adjust for gender, race/ethnicity, marital status, education, and employment. Relative risk ratios (RRR) are interpreted, e.g., among those 50–64, the relative risk of preferring oral administration vs. smoking only is 0.21 times lower for daily/near daily use vs. infrequent use (P < 0.003)
^bRef = smoke cannabis only
^cInfrequent = < monthly; regular = monthly, > monthly/< weekly, weekly; daily/near daily = daily
Bold indicates P < 0.05

ISSN: 2522-5782