Patterns of caffeine consumption
1983
Shirlow, M.J.
A cross sectional survey of over 4700 persons was designed to determine total caffeine consumption and to determine relationships between tea and coffee consumption and alcohol consumption or cigarette smoking. Individual variations in strength of coffee as drunk was taken into account. Distribution of tea and coffee consumption, and type of coffee drunk was similar for both men and women. Individual total caffeine intake remained fairly steady in persons between 25 and 70 years of age, with peak intake in the 45 to 50 year age group. The mean daily coffee intake (240 mg) was equivalent to five 150 ml cups of medium strength coffee. Thirty percent of the population consumed at least 300 mg per day and 2% consumed 600 mg or more per day. Coffee consumption was positively correlated with alcohol consumption; and caffeine, coffee and tea consumption were all correlated with number of cigarettes smoked per day. (emc)
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