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Ageing accounts for much of the association between decreasing grip strength and subsequent loneliness: the English Longitudinal Study of Ageing
Örebro University, School of Medical Sciences. (Clinical Epidemiology and Biostatistics)ORCID iD: 0000-0003-1030-3470
Örebro University, School of Medical Sciences. Department of Public Health Sciences, Stockholm University, Stockholm, Sweden; Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Osaka, Japan; Department of Epidemiology and Public Health, University College London, London, UK. (Clinical Epidemiology and Biostatistics)ORCID iD: 0000-0002-2088-0530
Örebro University, School of Medical Sciences. (Clinical Epidemiology and Biostatistics)ORCID iD: 0000-0003-4713-907x
Örebro University, School of Medical Sciences. (Clinical Epidemiology and Biostatistics)ORCID iD: 0000-0002-3649-2639
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2023 (English)In: Journal of Epidemiology and Community Health, ISSN 0143-005X, E-ISSN 1470-2738, Vol. 77, no 3, p. 175-181Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Loneliness at older ages has been associated with higher morbidity and mortality. One of the risk factors for loneliness may be age-related decline in skeletal muscle strength, which may limit the possibilities for engagement in usual social activities and maintaining relationships. We aimed to identify if decrease in grip strength is an independent determinant of subsequent change in loneliness.

METHODS: Prospective cohort study of participants aged 50 years or older living in private households and provided data in the English Longitudinal Study of Ageing waves 2 (2004/2005), 4 (2008/2009) and 6 (2012/2013) (n=6118). We used fixed effects linear models to estimate β coefficients and 95% confidence intervals.

RESULTS: The adjusted estimates for a 5-kilogramme decrease in grip strength and loneliness score (ranging from 3 to 9) are β 0.04 and 95% CI -0.003 to 0.08 among men and β 0.03 and 95% CI -0.02 to 0.09 among women. In age-stratified analysis, a statistically significant association was observed among men below the age of 80 years (0.04, 0.0001 to 0.08) but not among older men (0.04, -0.28 to 0.35), and among women below the age of 80 years (0.03, -0.002 to 0.09) or above (-0.02, -0.32 to 0.28).

CONCLUSION: Muscle strength declines with age and may help explain the greater social isolation that occurs at older ages. Decline in strength was only independently associated with modestly increased loneliness among men younger than 80 years of age, indicating its limitation as a potential marker of loneliness risk.

Place, publisher, year, edition, pages
BMJ Publishing Group Ltd, 2023. Vol. 77, no 3, p. 175-181
Keywords [en]
Aging, epidemiology, gerontology, longitudinal studies, public health
National Category
Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
URN: urn:nbn:se:oru:diva-97904DOI: 10.1136/jech-2021-218635ISI: 000766735700001PubMedID: 35256526Scopus ID: 2-s2.0-85142665246OAI: oai:DiVA.org:oru-97904DiVA, id: diva2:1643181
Note

Funding agency:

Orebro University doctoral studentship MV3028

Available from: 2022-03-09 Created: 2022-03-09 Last updated: 2023-12-08Bibliographically approved

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Vingeliene, SnieguoleHiyoshi, AyakoLentjes, MarleenFall, KatjaMontgomery, Scott

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