Daily tea drinking is associated with a low level of depressive symptoms in the Finnish general population
Tea drinking has been suggested to be beneficial in neurodegenerative diseases where depressive mood is a common symptom. Nevertheless, it is not known whether there are any associations between tea drinking and depression in general populations. In this study we investigated these associations in a sample of the Finnish general population (n = 2011) using a postal questionnaire and the Beck Depression Inventory (BDI). Those who reported drinking tea daily were less depressed than the others. They had a lower mean BDI score and also a lower prevalence of depression. None of those whose daily tea intake was five cups or more had depression. Several potential confounding factors were included in the final sex- and age-adjusted multivariate logistic regression model which suggested that those who drink tea daily may have a significantly reduced risk of being depressed (adjusted odds ratio 0.47, 95 confidence interval 0.27–0.83). In conclusion, an inverse relationship between daily tea drinking and the risk of being depressed was found in a relatively large general population sample. Nevertheless, the underlying mechanisms are unresolved and further studies are needed.
KeywordsCaffeine Depression General population Risk factors Tea
Beck Depression Inventory
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- 1.Greden, JF, Pomerleau, O 1995
Caffeine-related disorders and nicotine-related disordersKaplan, HISadock, BJ eds. Comprehensive textbook of psychiatrySixth ednWilliams & WilkinsBaltimoreGoogle Scholar
- 2.Suleman A, Lorenzo N. Caffeine. eMedicine. http://www.emedicine.com/neuro/topic666.htm (last updated October 26, 2004).Google Scholar
- 8.Nakagava, K, Miyazava, T 1997Absorption and distribution of tea catechin, Epigallocatechi-3-Gallate, in the ratJ Nutr Sci Vitam43679684Google Scholar
- 10.Ayuso-Mateos JL, Vazquez-Barquero JL, Dowrick C, Lehtinen V, Dalgard OS, Casey P, Wilkinson C, Lasa L, Page H, Dunn G, Wilkinson G, the ODIN group. Depressive disorders in Europe: prevalence figures from the ODIN study. Br J Psychiatry 2001; 179: 308–316Google Scholar
- 13.Beck, AT, Ward, CH, Mendelson, M, Mock, J, Erhaugh, J 1961An inventory for measuring depressionArch Gen Psychiatry45363Google Scholar