Abstract
Few reports have been issued on the relationship between anemia and dynapenia in older people. This study aimed to assess the independent association between anemia and dynapenia in older adults. This study was based on an analysis of the Korea National Health and Nutrition Examination Survey database (2015-2018). A total of 4812 subjects aged ≥ 65years were included. Dynapenia was defined by a handgrip strength (HGS). The independent association between dynapenia and anemia was examined by complex-sample multivariable logistic regression analyses. The geometric mean serum hemoglobin level for all study subjects was 13.73g/dL, and the prevalence of anemia was 13.1% (men, 12.8%; women 13.4%). Anemic subjects had a significantly lower adjusted mean HGS than non-anemic controls (23.14 ± 0.45kg vs. 24.50 ± 0.38kg, P < 0.001). Furthermore, anemic subjects had a significantly higher odds ratio for dynapenia (OR, 1.68; 95% CI, 1.30-2.17) than subjects without anemia after adjusting for multiple confounders, and the odds ratio of dynapenia was higher for anemic men (OR, 2.06, 95% CI, 1.38-3.09). This study indicates anemia is independently associated with dynapenia in older Koreans, especially in men, and indicates that dynapenia screening is needed in older people with anemia.
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