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Association of plant-based diet index with sleep quality in middle-aged and older adults: The Healthy Dance Study.
- Source :
-
Sleep health [Sleep Health] 2023 Oct; Vol. 9 (5), pp. 698-703. Date of Electronic Publication: 2023 Jun 04. - Publication Year :
- 2023
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Abstract
- Objectives: To investigate the association between plant-based diet indices and sleep quality in Chinese middle-aged and older adults.<br />Methods: The study included 2424 participants aged 45 years and older. Dietary data were collected using a semi-quantitative food frequency questionnaire, and sleep quality was assessed by the Pittsburgh Sleep Quality Index scale. Plant-based diet was categorized based on 3 indices (score range, 17-85) covering 17 food groups: the overall plant-based diet index, healthful plant-based diet index, and unhealthful plant-based diet index. The associations between these plant-based diet indices and sleep quality were examined using logistic and linear regression analyses.<br />Results: After controlling for sociodemographic, lifestyle, and multiple disease-related factors, participants in the highest quartile of the healthful plant-based diet index had 0.55 higher odds of better sleep quality (95% CI: 0.42, 0.72; P <subscript>trend</subscript> < .001). In contrast, participants in the highest quartile of the unhealthful plant-based diet index had 2.03 higher odds of poor sleep quality (95% CI: 1.51, 2.72; P <subscript>trend</subscript> < .001). In addition, plant-based diet index and healthful plant-based diet index were inversely associated with Pittsburgh Sleep Quality Index scores, while unhealthful plant-based diet index and Pittsburgh Sleep Quality Index scores were positively associated.<br />Conclusions: We found unhealthy plant-based diets are significantly associated with poor sleep quality. Adherence to overall plant-based diets, especially healthy plant-based diets, was positively associated with optimal sleep quality.<br /> (Copyright © 2023 National Sleep Foundation. Published by Elsevier Inc. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 2352-7226
- Volume :
- 9
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- Sleep health
- Publication Type :
- Academic Journal
- Accession number :
- 37280140
- Full Text :
- https://doi.org/10.1016/j.sleh.2023.04.003