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Milk drinking and mortality: findings from the Japan collaborative cohort study
Chaochen Wang1, Hiroshi Yatsuya, Koji Tamakoshi
1Department of Public Health and Health Systems, Nagoya University Graduate School of Medicine.
Journal of Epidemiology
|October 21, 2014
Summary
Milk consumption may lower mortality risk in Japanese adults. Moderate milk intake was linked to reduced all-cause mortality in men and women, and cardiovascular and cancer mortality in men.
Area of Science:
- Epidemiology
- Nutritional Science
- Public Health
Background:
- Inconsistent findings on milk consumption and mortality exist in Western populations.
- No prior studies investigated this association in Japan.
- This study addresses the gap in Japanese population data.
Purpose of the Study:
- To examine the association between milk consumption and all-cause mortality in Japan.
- To investigate the link between milk intake and cardiovascular disease mortality.
- To assess the relationship between milk consumption and cancer mortality.
Main Methods:
- Utilized data from the Japan Collaborative Cohort (JACC) study.
- Followed 94,980 adults aged 40-79 years from 1988 to 2009.
- Employed Cox proportional hazard regression to analyze mortality risks.
Main Results:
- Milk consumption of 1-2 times/month associated with lower all-cause mortality in men.
- Milk consumption of 3-4 times/week linked to lower all-cause mortality in women.
- Inverse associations for cardiovascular and cancer mortality observed in men only.
Conclusions:
- Drinking milk at least 1-2 times/month linked to reduced all-cause mortality in Japanese men.
- Milk intake showed inverse associations with cardiovascular and cancer mortality in men.
- Lower all-cause mortality in women was associated with drinking milk 3-4 times/week.
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