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Ko, Min Jung,Yun, Sungha,Oh, Kyungwon,Kim, Kirang Cambridge University Press 2015 The British journal of nutrition Vol.114 No.11
<B>Abstract</B><P>The objective of this study was to examine whether high serum 25-hydroxyvitamin D (25(OH)D) concentration was associated with high skeletal muscle mass, taking into account the effects of sex and age among the participants of the Korea National Health and Nutrition Examination Survey (KNHANES) aged 40 years or older. This was a cross-sectional study using data from the 2009 to 2010 KNHANES; a total of 8406 subjects (3671 men and 4735 women) were included. The appendicular skeletal muscle mass index (ASMMI, kg/m<SUP>2</SUP>) was estimated to measure the skeletal muscle mass. Hypovitaminosis was classified when the level of serum 25(OH)D was <20 ng/ml. The general linear model adjusted for confounding factors was used to determine differences in means of ASMMI by 25(OH)D status. The mean values of ASMMI were higher for men when compared with women. Women had a greater proportion of hypovitaminosis (71·1 %) compared with men (53·2 %). After adjusting for multiple factors, men were seen to have significant differences in ASMMI based on 25(OH)D status regardless of age, showing a lower mean value of ASSMI in those with hypovitaminosis. However, there was no difference in ASMMI by 25(OH)D status among women in both younger and older age groups. In conclusion, we found that there might be a positive relationship between 25(OH)D and skeletal muscle mass in men, indicating that interventions to improve 25(OH)D levels that are aimed at increasing muscle mass could be beneficial for men with more rapid decreased rate of skeletal muscle mass.</P>
Oh Kyungwon,Park Suyeon,Park Sihyun,Yun Sungha,Choi Hongseok,Jeong Eun Kyeong 한국역학회 2023 Epidemiology and Health Vol.45 No.-
Objectives: This study was to examine the changes in dietary habits and food and nutrient intakes between before (2019) and during (2020) the coronavirus disease 2019 (COVID-19) pandemic from the Korea National Health and Nutrition Examination Survey (KNHANES).Methods: A total of 54,995 participants aged ≥19 years who participated in the 2011-2020 KNHANES were included. The 10-year trend (2011-2020) and differences between 2019 and 2020 for dietary habits and food and nutrient intakes were estimated using SAS.Results: In the past 10 years (2011–2020), the dietary habits (increase in skipping meals and eating out), food intake (increase in meats and decrease in fruits and vegetables), and nutrient intake (increase in fat and decrease in sodium) in adults have changed. When comparing between 2019 and 2020, there were 4.6%p decrease in the eating out more than once a day. On the other hand, there were no significant differences in the intakes of food, energy and most of nutrients between 2019 and 2020, except for the proportion of energy intake from fat (1%p increase) and carbohydrate (1%p decrease).Conclusions: Although a change in dietary habits from before to during the COVID-19 pandemic was observed, food and nutrient intakes have not deteriorated markedly and appear similar to the trends in the past 10 years. Throughout the COVID-19 pandemic, it is necessary to monitor the effects of changes in dietary habits on health as well as food and nutrient intakes.
오경원(Kyungwon Oh),이정미(Jeongmi Lee),이봉숙(Bongsuk Lee),권상희(Sanghui Kweon),이연경(Yeonkyung Lee),김영택(Youngtaek Kim) 한국역학회 2007 Epidemiology and Health Vol.29 No.2
The general aim of Korea National Health and Nutrition Examination Survey (KNHANES) was to assess the health and nutritional status in the Korean population. The KNHANES began in 1998 and has been conducting as a series of surveys: 1998(1st), 2001(2nd), 2005(3rd) and 2007-2009(4th). Specific aims were, in a cross-sectional study of nationally representative samples of the noninstitutionalized civilian Korean population aged > 1 year (4,600 households each year), to monitor trends the prevalence, awareness, treatment and control of selected chronic diseases, monitor trends in nutritional status and risk behaviors, and analyze risk factors for chronic diseases. For these purposes, with standardized high-quality methods, extensive data on health and nutrition are collected by health interview, health examination (physical examination, clinical measurements and tests) and dietary interview. In 2007, the 4th KNHANES became a continuous annual survey by highly trained field staff. In addition, the 4th KNHANES expanded examination components (addition of oral examination, pulmonary function test and laboratory test items such as ferritin, vitamin D, insulin, manganese, and arsenic), simplified survey procedure, and strengthened quality control. Further works will be focused on the selection of new examination and interview components, planning of KNHANES follow-up survey, continuous training of field staff and quality control, and improvement of dietary survey method.