Changes in cannabis use, exposure, and health perceptions following legalization of adult recreational cannabis use in California: a prospective observational study

Table 3 Generalized estimating equation (GEE) models predicting cannabis use

	Model 1 (N = 282)			Model 2 (N = 252)			Model 3 (N = 252)
Variables	AOR	95% CI	p	AOR	95% CI	p	AOR	95% CI	p
Time
Pre-legalization (ref)
1-month post-legalization	1.28	1.07, 1.53	0.01	1.23	1.02, 1.48	0.03	1.27	0.99, 1.63	0.06
6-months post-legalization	1.28	1.06, 1.55	0.01	1.18	0.98, 1.41	0.08	0.94	0.71, 1.23	0.63
Currently employed^a	0.91	0.51, 1.64	0.76	0.53	0.25,1.13	0.10	0.52	0.25, 1.09	0.09
Age				0.97	0.94, 0.99	< 0.01	0.96	0.94, 0.98	0.01
Years of education				0.88	0.75, 1.02	0.08	0.86	0.73, 1.01	0.06
Depression				2.39	1.22, 4.68	0.01	1.90	0.92, 3.92	0.08
Other mental illness				1.08	0.42, 2.76	0.88	1.55	0.58, 4.15	0.38
Vote
Oppose (ref)
Abstain							1.57	0.41, 6.02	0.51
Favor							4.62	1.55, 13.8	< 0.01
Health Perceptions							1.38	1.16, 1.64	<.001
Time x health perceptions
Pre-legalization x health perceptions (ref)
1-month post-legalization x health perceptions							1.08	0.95, 1.23	0.27
6-months post-legalization x health perceptions							1.22	1.04, 1.42	0.01

Note. Adjusted odds ratios (AOR), confidence interval (CI), reference group (ref)
The age x time interaction was not significant and therefore dropped from the model
^a All models adjusted for employment status, due to its association with attrition

ISSN: 1747-597X