Table 3.

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

Variables	AOR	95% CI	p
Age (years)	1.025	1.018–1.031	<0.0001a
Gender	1.388	1.187–1.623	<0.0001a
Marital status
Single (Ref.)	1
Married/cohabiting	1.024	0.884–1.185	0.755
Divorced/widowed/separated	1.011	0.801–1.275	0.927
Education
Primary or below (Ref.)	1
Secondary	1.051	0.807–1.370	0.710
Post-Secondary	1.073	0.785–1.466	0.658
University	0.977	0.710–1.344	0.885
Monthly income (1000×HK)
<10 (Ref.)	1
10–19.9	1.026	0.773–1.362	0.858
20–29.9	0.747	0.573–0.973	0.030a
≥30	0.568	0.442–0.729	<0.0001a
Fagerström score	1.000	0.967–1.034	0.989
Mean cigarettes/day	1.005	0.996–1.015	0.244
Previous quit attempts	1.035	0.900–1.190	0.631

^ap<0.05 statistically significant.

HK: 1000 Hong Kong dollars about 130 US$.