COR: crude odds ratio for the unadjusted conditional logistic regression model; AOR: adjusted odds ratio for the backward stepwise conditional logistic regression model. denotes , denotes , and denotes . Ref: references category. aNumber of superscripts refers to dichotomized variables. High, daily or 1-2 times/week or ≥ 3 times/week, and moderate/low, never or less frequently (<3/month). ¥Variables adjusted for refrigerator, consumption of alcohol, consumption of white meat, consumption of red meat, consumption of processed meat, consumption of dairy product, preferences of the amount of fats/oils, preferences of amount of salts, preferences of condiments, consumption of green vegetables, and consumption of fruits.