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- Title
Association between Body Mass Index and Cognitive Function among Chinese Nonagenarians/Centenarians.
- Authors
Yan Zhou; Flaherty, Joseph H.; Chang-Quan Huang; Zhen-Chan Lu; Bi-Rong Dong
- Abstract
Aims: We examined the individual association between body mass index (BMI) and cognitive function among the very elderly. Methods: The present study analyzed data from a survey that was conducted on all residents aged 90 years or more from a district which had 2,311,709 inhabitants in 2005. The subjects were divided into 4 groups according to quartiles of BMI (<16.6, 16.6-18.9, 18.9-21.1 and >21.1), and according to classification criteria of underweight, normal weight, overweight and obesity in BMI (<18.5, 18.5-23.0, 23.0-27.5 and >27.5), respectively. Results: The subjects included in the statistical analysis were 211 men and 427 women. Those in the 3rd quartile of BMI (18.9-21.1) had higher cognitive function scores (p < 0.001) and were less likely to present possible dementia (p = 0.016) than the others. However, there was no difference in cognitive function scores (p = 0.350) or prevalence of possible dementia (p = 0.263) among obesity, overweight, normal weight and underweight groups. Conclusions: Concerning longevity in Chinese, there is an association between BMI and cognitive function. BMI of around 20 (18.9-21.1) is associated with the lowest risk of prevalence of possible dementia and the highest cognitive function scores. Copyright © 2011 S. Karger AG, Basel
- Subjects
ANALYSIS of variance; CHINESE people; COGNITION; COMPUTER software; STATISTICAL correlation; FISHER exact test; RESEARCH funding; DATA analysis; MULTIPLE regression analysis; BODY mass index
- Publication
Dementia & Geriatric Cognitive Disorders, 2011, Vol 30, Issue 6, p517
- ISSN
1420-8008
- Publication type
Article
- DOI
10.1159/000322110