Dietary quality may enhance survival related to cognitive impairment in Taiwanese elderly
Impaired cognition increases mortality in the aged. It is unclear how dietary quality might affect this relationship.To examine how dietary diversity and cognition might interact to determine survival.In a Nutrition and Health Survey in Taiwan (NAHSIT 1999–2000), 1,839 representative elde...
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| Format: | Article |
| Language: | English |
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Swedish Nutrition Foundation
2011-10-01
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| Series: | Food & Nutrition Research |
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| Online Access: | http://www.foodandnutritionresearch.net/index.php/fnr/article/view/7387/13197 |
| _version_ | 1819054682038861824 |
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| author | Rosalind Chen Yu-Hung Chang Meei-Shyuan Lee Mark L. Wahlqvist |
| author_facet | Rosalind Chen Yu-Hung Chang Meei-Shyuan Lee Mark L. Wahlqvist |
| author_sort | Rosalind Chen |
| collection | DOAJ |
| description | Impaired cognition increases mortality in the aged. It is unclear how dietary quality might affect this relationship.To examine how dietary diversity and cognition might interact to determine survival.In a Nutrition and Health Survey in Taiwan (NAHSIT 1999–2000), 1,839 representative elderly were followed for mortality up to 10 years. The dietary quality measure was a dietary diversity score (DDS, range: 0–6) to present six food groups (dairy, meat, rice and grains, fruit, vegetable,fat and oil) derived from a 24-h dietary recall. Cognitive function was evaluated by the validated Short Portable Mental Status Questionnaire (SPMSQ).Those with cognitive impairment (SPMSQ ≥ 3 errors) had 2.56 (95% confidence intervals (CI), 1.99–3.28) times the all-cause-mortality risk of those with intact cognition. After control for potential confounders, the adjusted hazard ratio (HR) remained significant (1.46, 95% CI: 1.06–2.02). Significant interactions for DDS and cognition were found (p<0.001). Jointly, compared to normal-SPMSQ-highest DDS, the greatest HR is where impaired cognition is combined with the lowest DDS (HR 2.24, 95% CI: 1.19–4.24). Increased DDS was associated with improvement in survival that is especially evident in those with 1–2 errors where the greatest HR reduction was found, and for fruit. Attributability for mortality amounted to 18% for impaired cognition and 33% for least diverse diet.Dietary diversity may improve survival in relation to impaired cognitive function. |
| first_indexed | 2024-12-21T12:55:30Z |
| format | Article |
| id | doaj.art-14532849cc9d4b0398fdcc991ca3726f |
| institution | Directory Open Access Journal |
| issn | 1654-6628 1654-661X |
| language | English |
| last_indexed | 2024-12-21T12:55:30Z |
| publishDate | 2011-10-01 |
| publisher | Swedish Nutrition Foundation |
| record_format | Article |
| series | Food & Nutrition Research |
| spelling | doaj.art-14532849cc9d4b0398fdcc991ca3726f2022-12-21T19:03:21ZengSwedish Nutrition FoundationFood & Nutrition Research1654-66281654-661X2011-10-0155011010.3402/fnr.v55i0.7387Dietary quality may enhance survival related to cognitive impairment in Taiwanese elderlyRosalind ChenYu-Hung ChangMeei-Shyuan LeeMark L. WahlqvistImpaired cognition increases mortality in the aged. It is unclear how dietary quality might affect this relationship.To examine how dietary diversity and cognition might interact to determine survival.In a Nutrition and Health Survey in Taiwan (NAHSIT 1999–2000), 1,839 representative elderly were followed for mortality up to 10 years. The dietary quality measure was a dietary diversity score (DDS, range: 0–6) to present six food groups (dairy, meat, rice and grains, fruit, vegetable,fat and oil) derived from a 24-h dietary recall. Cognitive function was evaluated by the validated Short Portable Mental Status Questionnaire (SPMSQ).Those with cognitive impairment (SPMSQ ≥ 3 errors) had 2.56 (95% confidence intervals (CI), 1.99–3.28) times the all-cause-mortality risk of those with intact cognition. After control for potential confounders, the adjusted hazard ratio (HR) remained significant (1.46, 95% CI: 1.06–2.02). Significant interactions for DDS and cognition were found (p<0.001). Jointly, compared to normal-SPMSQ-highest DDS, the greatest HR is where impaired cognition is combined with the lowest DDS (HR 2.24, 95% CI: 1.19–4.24). Increased DDS was associated with improvement in survival that is especially evident in those with 1–2 errors where the greatest HR reduction was found, and for fruit. Attributability for mortality amounted to 18% for impaired cognition and 33% for least diverse diet.Dietary diversity may improve survival in relation to impaired cognitive function.http://www.foodandnutritionresearch.net/index.php/fnr/article/view/7387/13197dietary diversitycognitionmortalityelderlyfruit |
| spellingShingle | Rosalind Chen Yu-Hung Chang Meei-Shyuan Lee Mark L. Wahlqvist Dietary quality may enhance survival related to cognitive impairment in Taiwanese elderly Food & Nutrition Research dietary diversity cognition mortality elderly fruit |
| title | Dietary quality may enhance survival related to cognitive impairment in Taiwanese elderly |
| title_full | Dietary quality may enhance survival related to cognitive impairment in Taiwanese elderly |
| title_fullStr | Dietary quality may enhance survival related to cognitive impairment in Taiwanese elderly |
| title_full_unstemmed | Dietary quality may enhance survival related to cognitive impairment in Taiwanese elderly |
| title_short | Dietary quality may enhance survival related to cognitive impairment in Taiwanese elderly |
| title_sort | dietary quality may enhance survival related to cognitive impairment in taiwanese elderly |
| topic | dietary diversity cognition mortality elderly fruit |
| url | http://www.foodandnutritionresearch.net/index.php/fnr/article/view/7387/13197 |
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