Table 2.

Adjusted odds ratios (AOR) and 95% CI for current co-users of tobacco and alcohol as determined by univariate analysis, Hong Kong 2014–2017

Variables	AOR	95% CI	p
Age (years)	1.030	1.026–1.034	<0.0001a
Gender
Male (Ref.)	1
Female	1.442	1.291–1.610
Marital status
Single (Ref.)	1		<0.0001a
Married/cohabiting	1.295	1.162–1.443	<0.0001a
Divorced/widowed/separated	1.734	1.463–2.055
Education
Primary or below (Ref.)	1		<0.0001a
Secondary	0.547	0.457–0.655	<0.0001a
Post-Secondary	0.488	0.391–0.609	<0.0001a
University	0.401	0.319–0.504
Monthly income (1000×HK)
<10 (Ref.)	1		0.658
10–19.9	1.060	0.819–1.371	0.002a
20–29.9	0.685	0.540–0.870	<0.0001a
≥30	0.505	0.405–0.631	0.096
Fagerström score	1.017	0.997–1.037	0.028a
Mean cigarettes/day	1.006	1.001–1.011
Previous quit attempts
No (Ref.)	1		0.903
Yes	1.007	0.901–1.126

^ap<0.05 statistically significant.

HK: 1000 Hong Kong dollars about 130 US$.