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- Title
Green tea consumption and mortality in Japanese men and women: a pooled analysis of eight population-based cohort studies in Japan.
- Authors
Abe, Sarah Krull; Saito, Eiko; Sawada, Norie; Tsugane, Shoichiro; Ito, Hidemi; Lin, Yingsong; Tamakoshi, Akiko; Sado, Junya; Kitamura, Yuri; Sugawara, Yumi; Tsuji, Ichiro; Nagata, Chisato; Sadakane, Atsuko; Shimazu, Taichi; Mizoue, Tetsuya; Matsuo, Keitaro; Naito, Mariko; Tanaka, Keitaro; Inoue, Manami
- Abstract
The aim of our study was to assess the association between green tea consumption and all-cause and cause-specific mortality in a pooled analysis of eight Japanese population-based cohort studies. Pooled hazard ratios (HR) and 95% confidence intervals (CI), derived from random effects models, were used to evaluate the associations between green tea consumption, based on self-report at baseline, and risk of all-cause and cause-specific mortality. During a mean follow-up of 17.3 years, among 313,381 persons, 52,943 deaths occurred. Compared with individuals who consumed < 1 cup/day, those in the highest consumption category (≥ 5 cups/day) had a decreased risk of all-cause mortality [the multivariate-adjusted HR was 0.90 (95% CI 0.87–0.94) for men and 0.82 (0.74–0.90) for women]. A similar inverse association was observed for heart disease mortality [HR 0.82 (0.75–0.90) for men, and 0.75 (0.68–0.84) for women], and cerebrovascular disease mortality [HR 0.76 (0.68–0.85) for men, and 0.78 (0.68–0.89) for women]. Among women, green tea consumption was associated with decreased risk of total cancer mortality: 0.89 (0.83–0.96) for the 1–2 cups/day category and 0.91 (0.85–0.98) for the 3–4 cups/day category. Results for respiratory disease mortality were [HR 0.75 (0.61–0.94)] among 3–4 cup daily consumers and [HR 0.66 (0.55–0.79)] for ≥ 5 cups/day. Higher consumption of green tea is associated with lower risk for all-cause mortality in Japanese, especially for heart and cerebrovascular disease. Moderate consumption decreased the risk of total cancer and respiratory disease mortality in women.
- Subjects
JAPAN; GREEN tea; HEART disease related mortality; JAPANESE women; RANDOM effects model; CANCER-related mortality; MORTALITY
- Publication
European Journal of Epidemiology, 2019, Vol 34, Issue 10, p917
- ISSN
0393-2990
- Publication type
Article
- DOI
10.1007/s10654-019-00545-y