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Background <p>Dietary diversity is widely recommended to promote health, but its association with activities of daily living (ADL) in older adults needs to be clarified.</p> Objectives <p>To examine the association of dietary diversity score (DDS) with ADL among older Chinese adults.</p> Methods <p>A total of 17,464 adults aged ≥ 65 y without disability in ADL at baseline were enrolled in the Chinese Longitudinal Healthy Longevity Study (CLHLS). The DDS at baseline was constructed based on 9 items of a food frequency questionnaire. Disability in ADL was defined as dependence on eating, toileting, bathing, dressing, indoor activities, and continence. Cox proportional hazard models were used to examine the association between DDS (categorized by quartile) and disability in ADL.</p> Results <p>During the mean follow-up of 5.25 y, 10,750 participants with disability in ADL were identified. In comparison with individuals in the first quartile for DDS, the adjusted HR for disability in ADL was 0.91 (95% CI, 0.85–0.96) in the second quartile, 0.87 (95% CI, 0.82–0.92) in the third quartile, and 0.87 (95% CI, 0.83–0.92) in the fourth quartile (<i>P</i> &lt; 0.001 for trend). Meat, eggs, beans, vegetables, and fruits were also associated with a lower risk of disability in ADL.</p> Conclusion <p>Our findings suggest that a higher DDS was associated with a lower risk of disability in ADL among older Chinese adults. Greater efforts to promote a diverse diet should be targeted towards older adult for preventing disability in ADL.</p>

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Association of dietary diversity with disability in activities of daily living among older Chinese people: a longitudinal study

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年10月13日

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  • Li Huang,
  • Zheng Liu,
  • Weiming Wang,
  • Rencheng Zhao,
  • Panpan Sun,
  • Ying Xu,
  • Yanfang Guo,
  • Qing Yuan,
  • Hongmin Zhang,
  • Jian Xu

摘要

Background

Dietary diversity is widely recommended to promote health, but its association with activities of daily living (ADL) in older adults needs to be clarified.

Objectives

To examine the association of dietary diversity score (DDS) with ADL among older Chinese adults.

Methods

A total of 17,464 adults aged ≥ 65 y without disability in ADL at baseline were enrolled in the Chinese Longitudinal Healthy Longevity Study (CLHLS). The DDS at baseline was constructed based on 9 items of a food frequency questionnaire. Disability in ADL was defined as dependence on eating, toileting, bathing, dressing, indoor activities, and continence. Cox proportional hazard models were used to examine the association between DDS (categorized by quartile) and disability in ADL.

Results

During the mean follow-up of 5.25 y, 10,750 participants with disability in ADL were identified. In comparison with individuals in the first quartile for DDS, the adjusted HR for disability in ADL was 0.91 (95% CI, 0.85–0.96) in the second quartile, 0.87 (95% CI, 0.82–0.92) in the third quartile, and 0.87 (95% CI, 0.83–0.92) in the fourth quartile (P < 0.001 for trend). Meat, eggs, beans, vegetables, and fruits were also associated with a lower risk of disability in ADL.

Conclusion

Our findings suggest that a higher DDS was associated with a lower risk of disability in ADL among older Chinese adults. Greater efforts to promote a diverse diet should be targeted towards older adult for preventing disability in ADL.