Prevalence of dementia in a Japanese elderly population

The epidemiology of dementia in Canada is not known. However, we report figures on the frequency of dementia in institutions in Ontario based upon the use of a multidimensional observation scale for the assessment of the elderly. These findings on institutionalized patients can be extrapolated to the whole elderly population, but the procedure is clearly too conservative by comparison with findings in other countries and in the light of the known occurrence of numbers of demented patients outside institutions. Ratios in different sutidies for the numbers of patients with dementia outside institutions and within institutions range from 1:1 to 6:1. Using a ratio of 2:1 and applying it to age specific population figures, a prevalence of dementia in Canada of 222,324 for those over 65 is obtained with a rate of 9.4% in that age group. When the figures projected in this way are compared with five epidemiological studies for the rate of dementia elsewhere, the Canadian figure which we have obtained ranks fourth out of six. This estimate provides potential figures on which to base the planning of services, provided that the inferential nature of the estimates is fully recognized.

Download Full-text

Is Dementia Differentially Distributed? A Study on the Prevalence of Dementia in Migrant, Urban, Rural, and Tribal Elderly Population of Himalayan Region in Northern India

North American Journal of Medical Sciences ◽

10.4103/1947-2714.131243 ◽

2014 ◽

Vol 6 (4) ◽

pp. 172 ◽

Cited By ~ 11

Author(s):

SunilKumar Raina ◽

Sujeet Raina ◽

Vishav Chander ◽

Ashoo Grover ◽

Sukhjit Singh ◽

...

Keyword(s):

Elderly Population ◽

Himalayan Region ◽

Northern India ◽

Urban Rural ◽

Prevalence Of Dementia

Download Full-text

Risk factors for 6-year mortality by gender in a Japanese elderly population

Archives of Gerontology and Geriatrics ◽

10.1016/j.archger.2007.02.002 ◽

2007 ◽

Vol 45 (3) ◽

pp. 335-341 ◽

Cited By ~ 5

Author(s):

Kazushi Okamoto ◽

Yuko Harasawa ◽

Yumiko Momose ◽

Kiyomi Sakuma

Keyword(s):

Risk Factors ◽

Elderly Population ◽

Japanese Elderly

Download Full-text

Trends in dementia prevalence, incidence, and survival rate in a Japanese community

Neurology ◽

10.1212/wnl.0000000000003932 ◽

2017 ◽

Vol 88 (20) ◽

pp. 1925-1932 ◽

Cited By ~ 79

Author(s):

Tomoyuki Ohara ◽

Jun Hata ◽

Daigo Yoshida ◽

Naoko Mukai ◽

Masaharu Nagata ◽

...

Keyword(s):

Survival Rate ◽

Elderly Population ◽

Secular Trends ◽

Secular Change ◽

Age Group ◽

Cross Sectional ◽

Dementia Prevalence ◽

Japanese Elderly ◽

Comprehensive Manner ◽

Adjusted Incidence

Objective:To investigate secular trends in the prevalence, incidence, and survival rate of dementia in a Japanese elderly population in a comprehensive manner.Methods:Five cross-sectional surveys of dementia were conducted among residents of a Japanese community, aged ≥65 years, in 1985, 1992, 1998, 2005, and 2012. We also established 2 cohorts consisting of the residents of this age group without dementia in 1988 (n = 803) and 2002 (n = 1,231), and each was followed for 10 years.Results:The age-standardized prevalence of all-cause dementia and Alzheimer disease (AD) increased with time (for all-cause dementia: 6.8% in 1985, 4.6% in 1992, 5.3% in 1998, 8.4% in 2005, and 11.3% in 2012, p for trend <0.01; for AD: 1.5%, 1.4%, 2.4%, 3.9%, and 7.2%, respectively, p for trend <0.01), while no secular change was observed for vascular dementia (VaD) (2.4%, 1.6%, 1.5%, 2.4%, and 2.4%, respectively, p for trend = 0.59). The age- and sex-adjusted incidence of all-cause dementia and AD, but not VaD, increased from the 1988 cohort to the 2002 cohort (for all-cause dementia: adjusted hazard ratio [aHR] 1.68, 95% confidence interval [CI] 1.38–2.06; for AD: aHR 2.07, 95% CI 1.59–2.70; for VaD: aHR 1.18, 95% CI 0.83–1.69). The 5-year survival rate of all-cause dementia and AD improved from the 1988 cohort to the 2002 cohort (for all-cause dementia: 47.3% to 65.2%; for AD: 50.7% to 75.1%; all p < 0.01).Conclusions:The increased incidence and improved survival rate of AD could have resulted in the steep increase in AD prevalence in the Japanese elderly.

Download Full-text

The Features of Dry Eye Disease in a Japanese Elderly Population

Optometry and Vision Science ◽

10.1097/01.opx.0000232814.39651.fa ◽

2006 ◽

Vol 83 (11) ◽

pp. 797-802 ◽

Cited By ~ 106

Author(s):

MIKI UCHINO ◽

MURAT DOGRU ◽

YUKIKO YAGI ◽

EIKI GOTO ◽

MASAO TOMITA ◽

...

Keyword(s):

Dry Eye ◽

Elderly Population ◽

Dry Eye Disease ◽

Eye Disease ◽

Japanese Elderly

Download Full-text

Association Between Habitual Green Tea Consumption and Comprehensive Frailty Risk Assessed by Kihon Checklist Indexes Among Japanese Elderly Population

10.21203/rs.3.rs-798460/v1 ◽

2021 ◽

Author(s):

Hinako Nanri ◽

Tsukasa Yoshida ◽

Yuya Watanabe ◽

Hiroyuki Fujita ◽

Misaka Kimura ◽

...

Keyword(s):

Green Tea ◽

Lower Risk ◽

Elderly Population ◽

Age Groups ◽

Cross Sectional Study ◽

Tea Consumption ◽

Cross Sectional ◽

Cognitive Problem ◽

Japanese Elderly ◽

Stratified Analysis

Abstract Background: It is unclear whether habitual green tea consumption is related to comprehensive frailty. Objective: We conducted this study to investigate this relationship among a Japanese elderly population.Methods: This was a cross-sectional study of baseline data from 2012. The study included 5668 Japanese participants (2766 men and 2902 women, aged 65 years or older). The subjects completed a validated self-administered food frequency questionnaire that included green tea consumption. We evaluated comprehensive frailty by using a 25-item Kihon Checklist (KCL), which comprised seven domains (instrumental activities of daily living [IADL], physical function, malnutrition, oral or eating function, socialization and housebound, cognitive function, and depression). Frailty was defined as a KCL score ≥7. Results: We found that higher consumption of green tea was associated with a lower risk of frailty in both sexes. Further age-stratified analysis showed that higher consumption of green tea among women was associated with a lower risk of frailty, regardless of age. In men, however, these associations were found only in the older age groups. An analysis of the association between green tea consumption and frailty subdomains showed that green tea consumption was associated with a lower risk of oral dysfunction and cognitive problem in both sexes. In addition, only in women, higher green tea consumption was inversely associated with a lower risk of IADL and mobility-related disability problems.Conclusions: Green tea consumption is inversely associated with the prevalence of comprehensive frailty in Japanese men and women. Longitudinal studies are required to confirm this association.

Download Full-text