한국 노인에서 체질량지수에 따른 좌식시간과 건강 관련 삶의 질 간의 연관성 = The Association between Sitting Time and Health-Related Quality of Life According to Body Mass Index inElderly Korean

다국어 초록 (Multilingual Abstract)

Background:Although obesity and health-related quality of life (HRQOL) in elderly are well known to be associated with obesity and sitting time, it is unclear whether effect of sedentary lifestyle on HRQOL is affected by body mass index (BMI) or not. So we analyzed the relationship between sitting time and HRQOL according to BMI groups in elderly Korean.
Methods:Participants aged over 60 from the 6th Korea National Health and Nutrition Examination Survey(2014 and 2015) were included. Participants were classified as normal weight and overweight/obese groups. Mean sitting times were compared between groups according to the EuroQol 5 dimension (EQ-5D) And logistic regression analyses were performed.
Results:Men with mobility, usual activity, or pain/discomfort domain problem had longer sitting time. Women with a problem in every domain had longer sitting time. Overweight/obese women with problem showed longer sitting time. Odds ratios (ORs) of mobility, usual activity, pain or discomfort, and low EQ-5D score domain were increased regardless of BMI groups in men. But, ORs of all domains were increased only in overweight/obese group in women.
Conclusions:In elderly Korean, prolonged sitting time associated with decreased HRQOL. Impaired HRQOL is associated with increased sitting time regardless of BMI in men. But only overweight/obese group showed association between prolonged sitting time and impaired HRQOL in women. These results represents that decrease in quality of life according to the increase of the sitting time differs according to the BMI in elderly Korean women

국문 초록 (Abstract)

연구배경: 노인에서 비만과 삶의 질 저하, 비만과 좌식 시간이 연관 관계가 있는 것으로 알려져 있지만 좌식 시간과삶의 질 간의 연관성이 체질량지수에 따라 차이가 있는지는 잘 알려져 있지 않다. 본 연구에서는 노인에서 좌식 시간이 삶의 질에 미치는 영향이 체질량지수 수준에 따라 차이가 있는지 알아보고자 한다.
방법: 제6기 국민건강영양조사(2014년과 2015년)에 참여한 만 60세 이상 노인을 대상으로 하여 대상자는 정상 체중군과, 과체중/비만군으로 분류하였다. 삶의 질 문제 여부에따른 평균 좌식 시간을 비교하였고, 삶의 질 저하 상태를종속변수로 로지스틱회귀분석을 시행하였다.
결과: 남자는 이동성, 일상활동능력, 통증/불편 영역에 문제가 있는 경우 평균 좌식 시간이 길었다. 여자는 모든 영역에서 문제가 있으면 좌식 시간이 길었다. 과체중/비만군여자에서는 문제가 있는 경우 좌식 시간이 길었으나, 정상군에서는 이동성 영역에 문제가 있는 경우만 좌식 시간이길었다. 남자는 정상군과 과체중/비만군 모두 좌식 시간이길어질수록 이동성, 일상활동능력, 통증/불편 영역, 낮은EQ-5D score에서 교차비가 증가하였다. 여자는 과체중/비만군에서는 좌식 시간이 길어지면 모든 영역에서 교차비가증가하였으나 정상군에서는 두드러진 교차비 증가가 확인되지 않았다.
결론: 한국 노인에서 좌식 시간의 증가는 삶의 질 저하와연관되어 있고, 남자에서는 체질량지수 수준과 상관없이좌식 시간의 증가가 삶의 질 저하와 연관된 반면, 여자의경우 과체중, 비만에 해당하는 경우 좌식 시간 증가에 의한삶의 질 저하가 더 두드러진다. 본 결과는 한국 노인 여자에서 좌식 시간 증가에 따른 삶의 질 저하가 체질량지수에따라 차이가 있다는 점을 시사한다.

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