Abstract:
BACKGROUND:The aetiology of age-related sarcopenia is not known. OBJECTIVES:To investigate if risk of developing sarcopenia differs by gender and to identify gender-specific risk factors of incident sarcopenia in a large population-based cohort of older English adults. METHODS:The sample (n=3404; age 63.4 (SD 7.7) years; 54.1% women) comprised older community-dwelling adults recruited from the English Longitudinal Study of Ageing. Sarcopenia was defined as handgrip <26 kg in men and <16 kg in women. Handgrip strength was assessed at baseline (2004/2005) and repeated at follow-up (2012/2013). Analysed risk factors included baseline anthropometric measures, smoking, vigorous and moderate physical activity, depressive symptoms, chronic illnesses and wealth. After excluding participants with sarcopenia at baseline, multivariable logistic regressions were used to explore baseline risk factors for incident sarcopenia. RESULTS:During 8-year follow-up, 208 and 287 cases of sarcopenia were identified in men (n=1564) and women (n=1840), respectively. Women were at 20% (age adjusted OR=1.20, 95% CI 0.98 to 1.47) higher risk of developing sarcopenia than men. The inverse association between physical activity and sarcopenia risk was observed at moderate (OR=0.44, 95% CI 0.27 to 0.67) and vigorous (0.53, 95% CI 0.31 to 0.82) intensities in men and only vigorous (OR=0.44, 95% CI 0.28 to 0.68) intensity in women. Social factors, such as wealth, and chronic health conditions appeared to be more strongly associated with sarcopenia in men. CONCLUSION:Women are at higher risk of developing incident sarcopenia than men, and this is likely explained by a range of gender-specific risk factors.
journal_name
J Epidemiol Community Healthjournal_title
Journal of epidemiology and community healthauthors
Yang L,Smith L,Hamer Mdoi
10.1136/jech-2018-211258subject
Has Abstractpub_date
2019-01-01 00:00:00pages
86-88issue
1eissn
0143-005Xissn
1470-2738pii
jech-2018-211258journal_volume
73pub_type
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