Table 1.

Change in harm and relative addiction beliefs for each year compared to previous years

	OR	95% CI	Z	p
Harm belief
2015 vs. 2014	1.16	[1.12, 1.21]	8.01	<.001
2016 vs. 2015	1.32	[1.27, 1.37]	14.39	<.001
2017 vs. 2016	1.12	[1.08, 1.17]	6.16	<.001
2018 vs. 2017	0.95	[0.91, 0.98]	−2.81	.005
2019 vs. 2018	1.39	[1.34, 1.44]	17.71	<.001
Relative addiction belief
2016 vs. 2014	1.18	[1.13, 1.23]	7.11	<.001
2017 vs. 2016	1.00	[0.95, 1.04]	−0.20	.841
2018 vs. 2017	1.19	[1.13, 1.25]	6.86	<.001
2019 vs. 2018	2.63	[2.51, 2.75]	41.01	<.001