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The combined effect of anemia and dynapenia on mortality risk in older adults: 10-Year evidence from the ELSA cohort study

Luiz, Mariane Marques; Schneider, Ione Jayce Ceola; Kuriki, Heloyse Uliam; Fattori, André; Corrêa, Vanessa Pereira; Steptoe, Andrew; Alexandre, Tiago da Silva; (2022) The combined effect of anemia and dynapenia on mortality risk in older adults: 10-Year evidence from the ELSA cohort study. Archives of Gerontology and Geriatrics , 102 , Article 104739. 10.1016/j.archger.2022.104739. Green open access

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Abstract

BACKGROUND/OBJECTIVE: Anemia and dynapenia can occur simultaneously. Separately, both conditions increase the mortality risk with advancing age. However, there is no epidemiological evidence on the combined effect of these conditions on mortality in older adults. We investigated whether combined anemia and dynapenia increase the mortality risk, and whether there are gender differences. METHODS: A 10-year follow-up study was conducted involving 5,310 older adults from the English Longitudinal Study of Ageing (ELSA). According to the diagnosis of anemia (hemoglobin concentration < 13.0 g/dL in men and < 12.0 g/dL in women) and dynapenia (grip strength < 26 kg for men and < 16 kg for women), individuals at baseline were categorized as "non-anemic/non-dynapenic", "dynapenic", "anemic" and "anemic/dynapenic". The outcome was all-cause mortality during the follow-up period. RESULTS: A total of 984 deaths were computed during the follow-up (63.7% in non-anemic/non-dynapenic, 22.8% in dynapenic, 7.5% in anemic and 6.0% in anemic/dynapenic). Adjusted Cox proportional hazard models stratified by sex showed that anemia and dynapenia combined was associated with an increased mortality risk in men (HR: 1.64; 95% IC 1.08 - 2.50) and women (HR: 2.17; 95% CI 1.44 - 3.26). Anemia in men (HR: 1.68; 95% CI 1.22 - 2.32) and dynapenia in women (HR: 1.37; 95% CI 1.09 - 1.72) were also risk factors for mortality. CONCLUSIONS: The coexistence of anemia and dynapenia increases the mortality risk, highlighting the need for early identification, prevention, and treatment of these conditions to reduce their complications and the mortality risk.

Type: Article
Title: The combined effect of anemia and dynapenia on mortality risk in older adults: 10-Year evidence from the ELSA cohort study
Location: Netherlands
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.archger.2022.104739
Publisher version: https://doi.org/10.1016/j.archger.2022.104739
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third-party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Keywords: Anemia, Dynapenia, Handgrip strength, Hemoglobin levels, Mortality
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health > Behavioural Science and Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health > Epidemiology and Public Health
URI: https://discovery.ucl.ac.uk/id/eprint/10150503
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