Dietary patterns and functional disability in older Korean adults

Area of Science:

• Gerontology
• Nutritional Science
• Public Health

Background:

• Functional disability is a significant concern among the elderly population.
• Dietary patterns play a crucial role in maintaining health and independence in older adults.
• Understanding the link between diet and disability can inform public health interventions.

Purpose of the Study:

• To investigate the association between distinct dietary patterns and functional disability in Korean elderly individuals.
• To identify specific dietary components that may influence the risk of activities of daily living (ADL) and instrumental ADL (IADL) disability.

Main Methods:

• Cross-sectional study utilizing data from the 2005 Korea National Health and Nutrition Examination Survey (KNHANES).
• Inclusion of 327 men and 460 women aged 65 years and older.
• Dietary patterns identified using cluster analysis based on a 24-hour dietary recall; functional disability assessed using ADL and IADL scales; logistic regression analysis performed adjusting for multiple covariates.

Main Results:

• Two primary dietary patterns were identified: a 'modified traditional' pattern (lower white rice, higher fruits, dairy, legumes) and a 'traditional' pattern (high white rice).
• In men, the modified traditional dietary pattern was associated with a significantly lower likelihood of ADL disability (OR=0.17).
• In women, the modified traditional dietary pattern showed a significantly decreased risk for both ADL (OR=0.45) and IADL disability (OR=0.45).

Conclusions:

• The modified traditional dietary pattern is associated with a reduced risk of functional disability in older Korean adults.
• Promoting dietary patterns rich in fruits, dairy, and legumes, while moderating white rice intake, may be beneficial for maintaining functional independence in the elderly.
• These findings highlight the importance of diet in geriatric health and disability prevention.