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65세 이상 고령자에서 비만과 악력의 상호작용이 건강관련 삶의 질에 미치는 영향: 제7기(2016-2018) 국민건강 영양조사 자료를 기반으로

The Effect of Interaction between Obesity and Grip Strength on Health-Related Quality of Life in Elderly: Based on the Korea National Health and Nutrition Examination Survey (2016-2018)

보건정보통계학회지 2021년 46권 1호 p.28 ~ 35
현승재, 우다래, 박상신,
소속 상세정보
현승재 ( Hyun Seung-Jae ) - University of Seoul Graduate School of Urban Public Health
우다래 ( Woo Da-Rae ) - University of Seoul Graduate School of Urban Public Health
박상신 ( Park Sang-Shin ) - University of Seoul Graduate School of Urban Public Health

Abstract


Objectives: The aim of this study is to determine interaction between obesity and grip strength in health-related quality of life (HRQOL).

Methods: This study analyzed the data of 4,119 Korean men and women aged 65 years or older who participated in Korea Health and Nutrition Examination Survey, 2016-2018. Body mass index was divided into normal and obesity. Grip strength was defined as the maximum value of the measured data. Sarcopenia was considered as the average of grip strength less than 26 kg in men and 18 kg in women. HRQOL was measured based on the Euro quality of life-5 dimensions questionnaire. We conducted a linear regression analysis to examine interaction effect between obesity and grip strength, and to estimate the interaction term between obesity and sarcopenia in HRQOL.

Results: We identified that obesity interacted with grip strength to affect HRQOL (p= 0.022) in aged people. Obese elderly men and women were more likely to have lower HRQOL scores compared to those who had normal weight among participants with low grip strength values. However, there was no significant difference between obesity and normal weight at high grip strength (34.3 kg52.7 kg) in HRQOL significantly (p= 0.41). Moreover, we identified interaction effect between obesity and sarcopenia (p= 0.019). Participants who had sarcopenia with normal weight were not different from those who were obese in HRQOL (p= 0.61).

Conclusions: Obesity and grip strength were associated with HRQOL. Also, those two factors were interacted to affect HRQOL. Obesity was interacted with sarcopenia to shape HRQOL. Therefore, we need to give a more attention to the elderly who were obese with low grip strength.

키워드

Obesity; Grip strength; Sarcopenia; Quality of life; Elderly

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