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

BMC Public Health

Table 2 Perceptions and use of e-cigarettes among young adults

	Former e-cigarette use^a				Current e-cigarette use^b
	AOR^c [95% CI]	p	AOR^c [95% CI]	p	AOR^c [95% CI]	p	AOR^c [95% CI]	p
	Among nonsmokers^d		Among current cigarette smokers^e		Among nonsmokers^d		Among current cigarette smokers^e
Perceived harm of e-cigarettes (n = 734 for nonsmokers and 338 for current cigarette smokers)	0.70 [0.61, 0.81]	<.001	0.90 [0.80, 1.00]	.055	0.63 [0.49, 0.81]	<.001	0.80 [0.69, 0.92]	.002
Perceived harm of e-cigarette aerosol (n = 696 for nonsmokers and 334 for current cigarette smokers)	0.73 [0.65, 0.82]	<.001	0.89 [0.81, 0.98]	.017	0.58 [0.45, 0.75]	<.001	0.88 [0.78, 0.99]	.041
Perceived addictiveness of e-cigarettes (n = 707 for nonsmokers and 328 for current cigarette smokers)	0.69 [0.62, 0.78]	<.001	0.93 [0.84, 1.02]	.119	0.63 [0.51, 0.79]	<.001	0.84 [0.75, 0.95]	.005
	Former e-cigarette use^a				Current e-cigarette use^b
	AOR^f [95% CI]		p		AOR^f [95% CI]		p
Perceived popularity of e-cigarette use (n = 1059)	1.09 [1.02, 1.17]		.013		1.22 [1.11, 1.34]		<.001

Notes. AOR = adjusted odds ratio; CI = confidence interval
^aE-cigarette former users reported having ever used e-cigarettes but not in the past 30 days
^bE-cigarette current users reported using e-cigarettes on at least 1 day in the past 30 days
^cAORs for former and current e-cigarette use in reference to never use; multinomial logistic regression models controlled for age, gender, education attainment, and place of birth
^dNonsmokers reported smoking cigarettes on 0 days in the past 30 days
^eCurrent cigarette smokers reported smoking cigarettes on at least 1 day in the past 30 days
^fAORs for former and current e-cigarette use in reference to never use; multinomial logistic regression models controlled for age, gender, education attainment, place of birth, and current cigarette smoking status

ISSN: 1471-2458