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Association of absolute and relative hand grip strength with all-cause mortality among middle-aged and old-aged peopleopen access

Authors
Jeong, WonjeongMoon, Jong YounKim, Jae-Hyun
Issue Date
May-2023
Publisher
BMC
Keywords
Grip strength; Absolute hand grip strength; Relative hand grip strength; All-cause mortality
Citation
BMC GERIATRICS, v.23, no.1
Journal Title
BMC GERIATRICS
Volume
23
Number
1
URI
https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/88213
DOI
10.1186/s12877-023-04008-8
ISSN
1471-2318
Abstract
ObjectivesThis study aimed to examine the association of absolute and relative hand grip strength (HGS) with the risk of all-cause mortality among middle-aged and old-aged people in South Korea. Considering that both absolute HGS and relative HGS could be effective measures, an in-depth investigation is necessary to compare the effects of both measures on mortality.MethodsData of 9,102 participants, derived from the Korean Longitudinal Study of Aging from 2006 to 2018, were examined. HGS was divided into two categories: absolute HGS and relative HGS (defined as HGS divided by body mass index). The risk of all-cause mortality was the dependent variable. Cox proportional hazard regression was used to analyze the association between HGS and all-cause mortality.ResultsThe average of absolute and relative HGS were 25.6 +/- 8.7 kg and 1.1 +/- 0.4 kg/BMI, respectively. The all-cause mortality rate decreased by 3.2% as absolute HGS increased by 1 kg (adjusted hazard ratio [HR] = 0.968, 95% CI = 0.958-0.978). An increase in relative HGS by 1 kg/BMI was associated with a 22% reduction in risk of all-cause mortality (adjusted HR = 0.780, 95% CI = 0.634-0.960). Individuals with more than two chronic diseases, there was a decrease in all-cause mortality as absolute HGS increased by 1 kg and relative HGS by 1 kg/BMI (absolute HGS; adjusted HR = 0.97, 95% CI = 0.959-0.982, relative HGS; adjusted HR = 0.483, 95% CI = 0.325-0.718).ConclusionsOur study findings showed that both absolute and relative HGS were inversely associated with the risk of all-cause mortality; a higher absolute/relative HGS was associated with a lower risk of all-cause mortality. Moreover, these findings highlight the importance of improving HGS to alleviate the burden of adverse health problems.
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