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Percentage of the number of daily coffee drinkers (A) and daily coffee intake (g/drinker/day) based on serving size (B) of instant coffee (IC), decaffeinated instant coffee (DIC), roasted coffee (RC), and coffee mix (CM) with respect to age and gender in the Korea National Health and Nutrition Examination Survey in 2012 (KNHANES 2012). The number of coffee drinkers was 3562 (about 49.4%) among the total of 7213 participants in the KNHANES 2012
