OBJECTIVES: This study examined the relationship between dietary patterns and disability in the Korean elderly.
STUDY DESIGN: We used data from a cross-sectional study of 327 men and 460 women aged ≥65 years who completed the 2005 Korea National Health and Nutrition Examination Survey.
MAIN OUTCOME MEASURES: A single 24-h dietary recall method was used to assess dietary intake and dietary patterns were identified by cluster analysis. Functional disability was assessed by the activities of daily living (ADL) and instrumental ADL (IADL) scales. The association of dietary patterns with ADL and IADL disability was analyzed by logistic regression adjusting for age, marital status, education, household income, region, chronic conditions, body mass index, smoking, alcohol drinking, physical activity, and energy intake.
RESULTS: Two dietary patterns were identified in both men and women: the modified traditional dietary pattern, characterized by a relatively lower consumption of white rice, but higher consumption of fruits, dairy products, and legumes, and the traditional dietary pattern, characterized by high consumption of white rice. After controlling for covariates, in men, those who engaged in modified traditional dietary pattern, compared with traditional dietary pattern, showed a lower likelihood of ADL disability (odds ratio [OR]=0.17, 95% confidence interval [CI]: 0.05-0.56). In women, the modified traditional dietary pattern compared with the traditional pattern was associated with a significantly decreased risk of ADL (OR=0.45, 95% CI: 0.23-0.90) and IADL disability (OR=0.45, 95% CI: 0.28-0.72).
CONCLUSIONS: The modified traditional dietary pattern is associated with a decreased risk of functional disability in older Korean adults.
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