Korean J Fam Pract 2020; 10(1): 60-67  https://doi.org/10.21215/kjfp.2020.10.1.60
Association between Physical Activity and Health-Related Quality of Life in Korean Patients with Diabetes Mellitus
Sin Na Lee, Hong Soo Lee*, Sang Wha Lee, Kyung Won Shim, Gee Youn Song, A Ri Byun
Department of Family Medicine, Ewha Womans University Mokdong Hospital, Ewha Womans University School of Medicine, Seoul, Korea
Hong Soo Lee
Tel: +82-2-2650-5165, Fax: +82-2-2654-2439
E-mail: hongslee@ewha.ac.kr
ORCID: http://orcid.org/0000-0002-8831-3946
Received: August 14, 2018; Revised: September 10, 2019; Accepted: January 15, 2020; Published online: February 20, 2020.
© The Korean Academy of Family Medicine. All rights reserved.

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Background: It is well known that physical activity has various health benefits. Therefore, this study was conducted to demonstrate the association between physical activity and health-related quality of life (HRQoL) among Korean patients with diabetes mellitus.
Methods: Our study is based on VI phases (2014–2015) of the Korea National Health and Nutrition Examination Survey. Subjects were divided into two groups according to high and low levels of physical activity. HRQoL was measured by using the Euro quality of life-5 dimension (EQ-5D). Impaired HRQoL was defined as the score within the lowest 20% of the EQ-5D index and some or extreme problems in the EQ-5D domains. Logistic regression analysis was used to calculate the odds ratio (OR) and the 95% confidence interval (CI) for the effects of physical activity on impaired HRQoL.
Results: The adjusted OR for impaired HRQoL for individuals that were more physically active compared to those who were less physically active was higher for the EQ-5D index (OR, 2.85; 95% CI, 1.82–4.44). Furthermore, compared to less physically active individuals, the adjusted ORs were higher for more physically active individuals in mobility (OR, 1.97; 95% CI, 1.28–3.02), self-care (OR, 2.20; 95% CI, 1.20–4.03), usual activities (OR, 2.83; 95% CI, 1.81–4.45), and pain/discomfort (OR, 1.75; 95% CI, 1.19–2.57) among the various EQ-5D domains.
Conclusion: A lack of physical activity is associated with lower HRQoL among Korean patients with diabetes, particularly when compared with Koreans engaged in frequent physical activity.
Keywords: Physical Activity; Health-Related Quality of Life; Diabetes Mellitus
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