Associations between socioeconomic status and obesity, sarcopenia, and sarcopenic obesity in community-dwelling older adults: The Tasmanian Older Adult Cohort Study.
Obesity
Older adults
Sarcopenia
Socioeconomic status
Journal
Experimental gerontology
ISSN: 1873-6815
Titre abrégé: Exp Gerontol
Pays: England
ID NLM: 0047061
Informations de publication
Date de publication:
12 2021
12 2021
Historique:
received:
10
09
2021
revised:
08
11
2021
accepted:
10
11
2021
pubmed:
18
11
2021
medline:
4
3
2022
entrez:
17
11
2021
Statut:
ppublish
Résumé
Social disadvantage may contribute to increased prevalence of sarcopenia and obesity. This study investigated if socioeconomic factors are associated with obesity, sarcopenia, or sarcopenic obesity (SO), in community-dwelling older adults. This was a cross-sectional analysis of data from the Tasmanian Older Adult Cohort study. Obesity was defined by body fat percentage (Men: ≥25%; Women: ≥35%) and sarcopenia was defined as the lowest 20% of sex-specific appendicular lean mass (ALM)/height (m 1099 older adults (63.0 ± 7.5 years; 51.1% women) participated. Older adults with a tertiary degree were significantly less likely to have obesity (0.68; 0.47, 0.98) and SO (0.48; 0.24, 0.94) compared with those who had no secondary schooling. No associations were found for occupation. Similarly, older adults living in advantaged areas were significantly less likely to have obesity (0.61; 0.39, 0.95). Steps per day mediated the association between residential area and body fat percentage by 51%. Lower educational attainment, but not occupation, was associated with increased likelihood for both obesity and SO in community-dwelling older adults. Low physical activity levels in disadvantaged areas substantially contributed to higher obesity prevalence in this population. Further research is necessary to confirm whether similar associations exist in populations with greater levels of social disadvantage and to design effective community-based interventions.
Sections du résumé
BACKGROUND
Social disadvantage may contribute to increased prevalence of sarcopenia and obesity. This study investigated if socioeconomic factors are associated with obesity, sarcopenia, or sarcopenic obesity (SO), in community-dwelling older adults.
METHODS
This was a cross-sectional analysis of data from the Tasmanian Older Adult Cohort study. Obesity was defined by body fat percentage (Men: ≥25%; Women: ≥35%) and sarcopenia was defined as the lowest 20% of sex-specific appendicular lean mass (ALM)/height (m
RESULTS
1099 older adults (63.0 ± 7.5 years; 51.1% women) participated. Older adults with a tertiary degree were significantly less likely to have obesity (0.68; 0.47, 0.98) and SO (0.48; 0.24, 0.94) compared with those who had no secondary schooling. No associations were found for occupation. Similarly, older adults living in advantaged areas were significantly less likely to have obesity (0.61; 0.39, 0.95). Steps per day mediated the association between residential area and body fat percentage by 51%.
CONCLUSION
Lower educational attainment, but not occupation, was associated with increased likelihood for both obesity and SO in community-dwelling older adults. Low physical activity levels in disadvantaged areas substantially contributed to higher obesity prevalence in this population. Further research is necessary to confirm whether similar associations exist in populations with greater levels of social disadvantage and to design effective community-based interventions.
Identifiants
pubmed: 34785261
pii: S0531-5565(21)00409-5
doi: 10.1016/j.exger.2021.111627
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
111627Informations de copyright
Copyright © 2021 Elsevier Inc. All rights reserved.