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Daigo Yoshida Last modified date:2019.06.26

Assistant Professor / Department of Epidemiology and Public Health
Department of Basic Medicine
Faculty of Medical Sciences




E-Mail
Homepage
http://www.eph.med.kyushu-u.ac.jp/
Department of Epidemiology and Public health, Graduate School of Medical Sciences, Kyushu University .
Phone
092-642-6151
Fax
092-642-4854
Academic Degree
Master of Medical Science, PhD of Medical Science
Field of Specialization
Epidemiology, Public Health, Public Health Nursing
Research
Research Interests
  • Lifetime risk of dementia in a general population of Japanese elderly
    keyword : dementia, lifetime risk, general population of Japanese elderly
    2017.06~2020.03.
  • Dairy consumption and risk of functional disability in elderly Japanese population
    keyword : Dairy intake; functional disability; capacity impairment; ADL disability; the elderly; cohort studies; Japanese
    2016.04~2019.03.
  • Healthy life expectancy in a general Japanese population
    keyword : Healthy life expectancy
    2016.04~2017.06.
  • Prevalence and causes of functional disability in an elderly general population of Japanese: the Hisayama Study
    keyword : ADL disability, dementia, stroke, prevalence, Japanese elderly
    2010.04~2012.03.
Academic Activities
Papers
1. Yoshida D, Ohara T, Hata J, Shibata M, Hirakawa Y, Honda T, Uchida K, Takasugi S, Kitazono T, Kiyohara Y, Ninomiya T. , Dairy consumption and risk of functional disability in an elderly Japanese population: the Hisayama Study. , American Journal of Clinical Nutrition, 109, 6, 1664-1671, 2019.06, Background: Little is known about the association between dairy intake and risk of functional disability in the elderly.
Objectives: We examined the influence of dairy intake on the development of declining functional capacity and activities of daily living (ADL) in a prospective cohort study of an elderly population.
Methods: A total of 859 community-dwelling Japanese residents, aged ≥65 y without functional disability, were followed up for 7 y. Functional capacity impairment was defined as a TokyoMetropolitan Institute of Gerontology Index of Competence score of ≤12, and ADL disability was defined as a Barthel Index score of ≤95. Dairy intake was evaluated using a 150-item semiquantitative food frequency questionnaire, grouped into quartiles. The RR of dairy
intake on incident functional disabilitywas computed using a Poisson regression model.
Results: The multivariable-adjusted RR of impaired functional capacity decreased significantly with increasing dairy intake levels
(RR [95% CI]: quartile 1, 1.00 [reference]; quartile 2, 0.85 [0.71, 1.02]; quartile 3, 0.81 [0.68, 0.98]; and quartile 4, 0.74 [0.61, 0.90]; P-trend = 0.001). Regarding the three subscales of functional capacity, the inverse association between dairy intake
and risk for impairment of intellectual activity and social role remained significant (P-trend = 0.0009 and 0.02, respectively),but such an association was not observed for instrumental ADL.The multivariable-adjusted risk of ADL disability also decreased weakly but significantly with elevating dairy intake (P-trend=0.04). A similar association was seen for severity of functional disability (P-trend = 0.002). However, the magnitude of these associations was attenuated after further adjustment for protein intake.
Conclusion: Our findings suggest that higher dairy intake is associated with a lower risk of functional disability and its
progression in the elderly, probably via an increase in protein intake..