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J Med Assoc Thai. 2001 Apr;84(4):461-7.

Prevalence estimation of dementia among Thai elderly: a national survey.

Author information

1
Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.

Abstract

OBJECTIVE:

To determine the prevalence of dementia and its associated factors among Thai elderly.

DESIGN:

A one-stage cross-sectional national survey.

SETTING:

National communities in Thailand.

SUBJECTS:

4,048 elderly subjects aged 60 and above.

RESULTS:

There were 668 (16.5%) elderly with a CMT score below 15. Among these elderly, 132 were dependent as to certain aspects of self-care. According to the definition of dementia used in this one-stage survey design (i.e. subjects with a low CMT score and self-care dependence), 3.3 per cent of Thai elderly (95% confidence interval = 2.7-3.8) were classified as having dementia. After adjusting to geographic and municipal area, the prevalence rate was 3.4 per cent (95% confidence interval = 2.8-4). Age-specific prevalence rate increased dramatically from 1.0 per cent in the 60-64 age-group to 31.3 per cent in the 90+ age-group. The prevalence rate of dementia among Thai elderly found in this study did not differ from the prevalence rates among the elderly in other Asian and developed countries. Using a logistic regression analysis, 3 independent factors associated with dementia were age, literacy (writing) and geographic area.

CONCLUSION:

With a one-stage survey design for determining the prevalence of dementia, the prevalence rate and age-specific prevalence rate among the Thai elderly did not differ from those found in other Asian and developed countries.

PMID:
11460954
[Indexed for MEDLINE]

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