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KMID : 1100920200410010053
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Korean Journal of Family Medicine
2020 Volume.41 No. 1 p.53 ~ p.60
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Association between Hand Grip Strength and Self-Rated Health in Middle- and Old-Aged Korean Citizens
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Jang Sae-Kyun
Kim Jae-Hyun
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Abstract
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Background: To investigate the relationship between hand grip strength (HGS) and self-rated health in middleand old-aged Korean subjects.
Methods: The data used for this study were derived from the Korean Longitudinal Study of Aging. A total of 9,132 participants were enrolled using the year 2006 as the baseline, with additional data collected throughout the followup period until 2016. Chi-square test and generalized estimating equation regression models were used for data analysis. HGS was measured in a sitting position with the elbow fixed at 90° on both sides using a dynamometer, and calculated using the values measured from both sides. Relative HGS was measured by dividing HGS by the subject’s body mass index. Self-rated health was assessed with the question “How would you rate your current health in general?” and answers were categorized as “excellent,” “moderate,” or “poor.”
Results: HGS was shown to be inversely associated with self-rated health (odds ratio [OR], 0.94; 95% confidence interval [CI], 0.93?0.94; P<0.0001). Patients aged 65 years or older with lower scores were more likely to report poor self-rated health. Similar results were obtained with relative HGS (OR, 0.40; 95% CI, 0.36?0.45; P<0.0001), but standard HGS had better model fitting (quasi-likelihood under independence model criteria=33,890).
Conclusion: HGS may be considered an index for the diagnosis of sarcopenia and may also affect self-rated health, which is a multidimensional indicator of an individual’s health status and can identify patients who may require special attention.
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KEYWORD
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Hand Grip Strength, Korean Longitudinal Study of Aging, Self-Rated Health
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