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. 2014 Dec 24;36:e2014036. doi: 10.4178/epih/e2014036
Variable Description Source
Socio-demographic characteristics Community health survey
 Gender Man, woman
 Age (yr) 19-34, 35-49, 50-64
 Household income Household income quartiles
 Education Middle school or under, high school, college or higher
 Occupation Non-manual, manual, others (including students, housewives, not working)
 Marital status Live with spouse, live without spouse
Health behaviors Community health survey
 Smoking Current smokers, former smokers, never smokers
 Alcohol drinking More than once a month, less than once a month
 Physical activity Moderate physical activity at least 30 minutes 5 times /wk or vigorous physical activity at least 20 minutes 3 times /wk
 Walking Regular walking for at least 30 minutes 5 times per week
 Low-sodium diet No salt or soy sauce in meals
 Sleep duration Less than 7 hours, 7-8 hours, more than 8 hours
 Stress Severe, less severe