Perceptions and use of e-cigarettes among young adults in Hong Kong

BMC Public Health

Table 3 Perceptions of e-cigarettes and frequency of e-cigarette use among current e-cigarette users

	Frequent e-cigarette use^a
	OR	[95% CI]	p	OR	[95% CI]	p
	Among nonsmokers^b			Among current cigarette smokers^c
Perceived harm of e-cigarettes (n = 11 for nonsmokers and 45 for current cigarette smokers)	0.54	[0.93, 1.46]	.333	0.87	[0.65, 1.13]	.300
Perceived harm of e-cigarette aerosol (n = 10 for nonsmokers and 44 for current cigarette smokers)	0.77	[0.35, 1.36]	.476	0.82	[0.62, 1.04]	.099
Perceived addictiveness of e-cigarettes (n = 11 for nonsmokers and 46 for current cigarette smokers)	1.11	[0.68, 1.89]	.758	0.77	[0.59, 0.97]	.026
Perceived popularity of e-cigarette use (n = 11 for nonsmokers and 46 for current cigarette smokers)	1.24	[0.79, 2.07]	.382	1.03	[0.82, 1.30]	.819

Notes. OR = odds ratio; CI = confidence interval
^aFrequent e-cigarette use was defined as e-cigarette use on 3 or more days in the past 30 days
^bNonsmokers reported smoking cigarettes on 0 days in the past 30 days
^cCurrent cigarette smokers reported smoking cigarettes on at least 1 day in the past 30 days

ISSN: 1471-2458