Dietary diversity and its association with changes in anthropometric indices of community-dwelling older adults in Tehran, Iran: a longitudinal study (2017-2021)

Dietary diversity refers to the consumption of a variety of foods or food groups over a given reference period, which is crucial for improving nutrition and overall health. This longitudinal study aimed to investigate the association between dietary diversity and anthropometric indices in community-...

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Bibliographic Details
Published in:BMC public health 2024-08, Vol.24 (1), p.2253-16
Main Authors: Rezaei, Mahshid, Forouzan, Kimia, Eini-Zinab, Hassan, Omidvar, Nasrin, Jafaripour, Samaneh, Rezazadeh, Arezoo
Format: Article
Language:English
Subjects:
Adults
Age
Aged
Analysis
Anthropometric indices
Anthropometry
Body mass index
Body size
Dairy products
Data collection
Demographic aspects
Diet
Diet - statistics & numerical data
Dietary diversity score
Dietary intake
Disease
Female
Food
Food and nutrition
Food consumption
Food groups
Food habits
Food intake
Fruits
Health aspects
Humans
Independent Living
Interviews
Iran
Longitudinal Studies
Male
Middle Aged
Nutrition research
Nutritional status
Nutritionists
Obesity
Older adults
Older people
Population
Questionnaires
Sample size
Software
Statistical analysis
Statistical models
Variables
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Summary:Dietary diversity refers to the consumption of a variety of foods or food groups over a given reference period, which is crucial for improving nutrition and overall health. This longitudinal study aimed to investigate the association between dietary diversity and anthropometric indices in community-dwelling older adults living in Tehran in 2017 and 2021. The current study was conducted on 368 older adults [204 (55.4%) women and 164 (44.6%) men] over 60 years of age living in Tehran, who were selected by a systematic cluster sampling method at two-time points, 2017 and 2021. Anthropometric measures (weight, height, hip circumference, and waist circumference) were assessed with standard methods. The participants' dietary intake was assessed by completing two non-consecutive 24-hour recalls, and dietary diversity score (DDS) was calculated based on Kant's method. Statistical analysis was performed using R software by the mixed effect model method. The mean DDS of the participants in 2017 (5.07 ± 1.20) was higher than that in 2021 (4.94 ± 1.09) (p 
ISSN:1471-2458
1471-2458
DOI:10.1186/s12889-024-19635-y