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Abstract Title:

Coffee and green tea consumption in relation to brain tumor risk in a Japanese population.

Abstract Source:

Int J Cancer. 2016 Dec 15 ;139(12):2714-2721. Epub 2016 Aug 12. PMID: 27560973

Abstract Author(s):

Takahiro Ogawa, Norie Sawada, Motoki Iwasaki, Sanjeev Budhathoki, Akihisa Hidaka, Taiki Yamaji, Taichi Shimazu, Shizuka Sasazuki, Yoshitaka Narita, Shoichiro Tsugane,

Article Affiliation:

Takahiro Ogawa

Abstract:

Few prospective studies have investigated the etiology of brain tumor, especially among Asian populations. Both coffee and green tea are popular beverages, but their relation with brain tumor risk, particularly with glioma, has been inconsistent in epidemiological studies. In this study, we evaluated the association between coffee and greed tea intake and brain tumor risk in a Japanese population. We evaluated a cohort of 106,324 subjects (50,438 men and 55,886 women) in the Japan Public Health Center-Based Prospective Study (JPHC Study). Subjects were followed from 1990 for Cohort I and 1993 for Cohort II until December 31, 2012. One hundred and fifty-seven (70 men and 87 women) newly diagnosed cases of brain tumor were identified during the study period. Hazard ratio (HR) and 95% confidence intervals (95%CIs) for the association between coffee or green tea consumption and brain tumor risk were assessed using a Cox proportional hazards regression model. We found a significant inverse association between coffee consumption and brain tumor risk in both total subjects (≥3 cups/day; HR = 0.47, 95%CI = 0.22-0.98) and in women (≥3 cups/day; HR = 0.24, 95%CI = 0.06-0.99), although the number of cases in the highest category was small. Furthermore, glioma risk tended to decrease with higher coffee consumption (≥3 cups/day; HR = 0.54, 95%CI = 0.16-1.80). No association was seen between green tea and brain tumor risk. In conclusion, our study suggested that coffee consumption might reduce the risk of brain tumor, including that of glioma, in the Japanese population.

Study Type : Human Study

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