Table 3

Association between respondent characteristics and support for advertising of e-cigarettes

		Bivariate				Adjusted/multivariable
	Advertising should be allowed (%)	OR	95% LCI	95% UCI	p Value	OR	95% LCI	95% UCI	p Value
Wave
2013 (referent)	66.0	1.00	ref	ref	ref	1.00	ref	ref	ref
2014	55.9	0.64	0.57	0.73	<0.001	0.80	0.44	1.46	0.47
Smoking status
Ex-smoker (referent)	56.1	1.00	ref	ref	ref	1.00	ref	ref	ref
Current smoker	62.9	1.31	1.09	1.58	0.004	1.32	1.08	1.62	0.008
E-cigarette					<0.001				<0.001
Never tried (referent)	52.7	1.00	ref	ref	ref	1.00	ref	ref	ref
Tried, not using	60.0	1.35	1.12	1.62	0.002	1.23	1.01	1.50	0.043
Non-daily use	69.9	1.90	1.57	2.31	<0.001	1.44	1.17	1.79	0.001
Daily use	78.5	3.14	2.42	4.07	<0.001	2.20	1.65	2.93	<0.001
Risks of smoking from nicotine					<0.001				<0.001
Nearly all (referent)	57.1	1.00	ref	ref	ref	1.00	ref	ref	ref
Much more than half	62.6	1.22	0.95	1.57	0.12	1.35	1.03	1.77	0.031
Around half	60.4	1.11	0.86	1.43	0.41	1.18	0.90	1.54	0.24
Some but well under half	66.4	1.43	1.12	1.83	0.005	1.32	1.01	1.72	0.042
None/very small	73.6	1.88	1.39	2.56	<0.001	1.49	1.07	2.06	0.017
Don’t know	42.6	0.59	0.44	0.80	0.001	0.70	0.51	0.96	0.027
Relative harm of e-cigarettes
Not less harmful (referent)	39.6	1.00	ref	ref	ref	1.00	ref	ref	ref
Less harmful	74.9	4.14	3.53	4.86	<0.001	3.55	3.00	4.20	<0.001
Gender
Male (referent)	62.3	1.00	ref	ref	ref	1.00	ref	ref	ref
Female	60.5	0.92	0.79	1.08	0.32	0.96	0.78	1.19	0.74
Age (years)					0.012				0.008
18–24 (referent)	63.9	1.00	ref	ref	ref	1.00	ref	ref	ref
25–39	56.5	0.73	0.52	1.01	0.055	0.67	0.44	1.02	0.064
40–54	61.6	0.91	0.66	1.25	0.56	1.04	0.69	1.59	0.84
55 and over	64.4	1.01	0.73	1.39	0.96	1.17	0.77	1.77	0.46
Annual income					0.008				0.48
Up to £15 000 (referent)	60.9	1.00	ref	ref	ref	1.00	ref	ref	ref
£15 001–£30 000	63.8	1.14	0.92	1.41	0.24	1.17	0.89	1.56	0.27
Over £30 000	62.6	1.08	0.88	1.33	0.46	1.14	0.86	1.51	0.36
Don’t know/prefer not to say	53.2	0.72	0.55	0.95	0.022	0.90	0.62	1.30	0.57

Models include 3279 observations from 1848 individuals.Bold font indicates significant associations (p<0.05).
LCI, Lower CI; UCI, Upper CI.