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Longitudinal associations of dietary patterns with sociodemographic and lifestyle factors in older adults: the TASOAC study


Nguyen, HH and Wu, F and Oddy, WH and Wills, K and Brennan-Olsen, SL and Jones, G and Winzenberg, T, Longitudinal associations of dietary patterns with sociodemographic and lifestyle factors in older adults: the TASOAC study, European Journal of Clinical Nutrition, (November) pp. 1-9. ISSN 0954-3007 (2020) [Refereed Article]

Copyright Statement

Copyright 2020 The Authors, under exclusive licence to Springer Nature Limited

DOI: doi:10.1038/s41430-020-00802-4


Background/objectives: To derive dietary patterns and examine their longitudinal associations with sociodemographic and lifestyle factors in the Tasmanian Older Adult Cohort.

Subjects/methods: This is a corrected analysis of a retracted paper. We followed 1098 adults aged ≥50 years for 5 years. Dietary intake was assessed using a validated food frequency questionnaire. Baseline dietary patterns were identified using exploratory factor analysis and scores at each time point calculated using the weighted sum score method. Associations of energy-adjusted dietary pattern scores with participant characteristics were assessed using linear mixed-effects models.

Results: The four dietary patterns identified were: fruit and vegetable (vegetables, potatoes, fruits); animal protein (poultry, red meats, fish); snack (snacks, sweets, nuts); western (meat pies, hamburgers, pizzas). Fruit and vegetable pattern scores were lower in men and current smokers at baseline. Animal protein scores were lower in older and retired people but higher in men and smokers at baseline. The sex difference in animal protein score increased over time (p = 0.012). At baseline, snack score was positively associated with age and physical activity, but lower in men and current smokers. The effect of age on snack score lessened over time (p = 0.035). Western scores were lower in older people but higher in men, current smokers and those living in disadvantaged areas at baseline. The effect of age on western score reduced over time (p = 0.001).

Conclusions: The higher scores for healthy and/or lower scores for unhealthy patterns in men, smokers, retirees and those experiencing social disadvantage suggest these could be target groups for interventions to improve diet quality in older adults.

Item Details

Item Type:Refereed Article
Research Division:Biomedical and Clinical Sciences
Research Group:Nutrition and dietetics
Research Field:Clinical nutrition
Objective Division:Health
Objective Group:Public health (excl. specific population health)
Objective Field:Nutrition
UTAS Author:Nguyen, HH (Miss Hoa Nguyen)
UTAS Author:Wu, F (Dr Feitong Wu)
UTAS Author:Oddy, WH (Professor Wendy Oddy)
UTAS Author:Wills, K (Dr Karen Wills)
UTAS Author:Jones, G (Professor Graeme Jones)
UTAS Author:Winzenberg, T (Professor Tania Winzenberg)
ID Code:141843
Year Published:2020
Web of Science® Times Cited:1
Deposited By:Menzies Institute for Medical Research
Deposited On:2020-11-26
Last Modified:2020-12-08

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