• 한국학교보건학회지
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• 제30권2호
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• pp.146-153
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• 2017

Purpose: The purpose of this study was to identify the association between physical activity and vitamin D deficiency status among Korean adolescents. Methods: This is cross-sectional analysis of Korean adolescents aged 10-18 years from the 5th Korea National Health and Nutrition Examination Survey(KNHANES 2010-2012; n=2,384). We estimated the prevalence of vitamin D deficiency and identified the correlations with the strength of physical activity. $x^2$ test, t-test, and multiple logistic regression using complex sample analysis were done. The odds ratio of vitamin D deficiency by physical activity was calculated using complex sample multivariate logistic regression analysis. Results: The prevalence of vitamin D deficiency was 78.2%. The mean serum 25 (OH) D level in deficiency group and non-deficiency group was 14.4ng/mL, 23.7ng/mL respectively. Differences by age strata (the prevalence ranging from 68.5% to 86.3%) and gender (78.6% for boy and 84.5% for girl) were identified. Among adolescents aged 16-18 or girl in vigorous physical activity, a significant correlation between vitamin D deficiency and physical activity was observed, whereas no significant correlation were found among adolescents in moderate physical activity. Conclusion: In conclusion, vigorous physical activity was associated with vitamin D deficit in Korean adolescents. Thus, intervention programs enhancing vigorous activity than moderate activity need to be developed in schools and community.

• Clinical and Experimental Pediatrics
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• 제58권5호
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• pp.165-171
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• 2015

Purpose: To analyze the correlation between serum alanine aminotransferase (ALT) and obesity indices including body mass index (BMI), body fat percentage (BFP), total fat mass (FM), truncal fat mass (TFM), waist circumference (WC), and waist-to-height ratio (WHtR) in Korean adolescents. Methods: This was a cross-sectional study based on data derived from the 2010-2011 Korean National Health and Nutrition Examination Surveys (KNHANES). Subjects were Korean adolescents aged 10-18 years (871 total; 475 boys and 396 girls) who participated in KNHANES. Results: In both sexes, BMI, FM, TFM, WC, and WHtR were higher when ALT levels were in the 4th quartile. In boys, there was a significant positive correlation between ALT level and BMI, BFP, FM, TFM, WC, and WHtR (r=0.55, P<0.0001 for BMI; r=0.52, P<0.0001 for BFP; r=0.58, P<0.0001 for FM; r=0.61, P<0.0001 for TFM; and r=0.56, P<0.0001 for WC; r=0.62, P<0.0001 for WHtR), and the correlation coefficient was higher than that in girls. Conclusion: Our results suggest a significant positive association between serum ALT level and obesity indices in male adolescents.

• 한국시뮬레이션학회논문지
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• 제29권1호
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• pp.11-21
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• 2020

암을 제외한 한국인의 가장 높은 사망원인은 심뇌혈관질환으로 사망원인의 24%를 차지한다. 현재 국내 환자의 심혈관질환의 위험도 산출은 프레밍험 위험지수를 기반으로 하지만, 국외의 가이드라인에 의존하고 있어 정확도가 떨어지는 편이며, 뇌혈관질환의 예측에 대한 위험도는 산출할 수 없다. 심뇌혈관질환은 예방을 위한 조기증상들의 특징 분석이 어려워 질환예측이 힘들며, 한국인에 적합한 예측 방법이 필요하다. 본 연구의 목적은 심뇌혈관질환 데이터를 이용하여, 특징집합 IG-MLP 평가 기반의 특징선택 방법론을 시뮬레이션 하여 검증하는 것이다. 제안하는 방법은 제4~7기 국민건강영양조사 원시자료를 이용한다. 심뇌혈관질환의 예측에 중요한 특징들을 선별하기 위해, 속성들의 심뇌혈관질환에 대한 정보이득-다층신경망을 이용한 분석을 실시하며, 최종적으로 선별된 특징을 이용한 심뇌혈관질환 예측 모델을 제공한다. 제안하는 방법으로 한국인의 심뇌혈관질환에 관련된 중요한 특징들을 찾을 수 있으며, 최적화된 특징들로 구성된 예측 모델은 한국인에 대해 더욱 정확한 심뇌혈관 예측을 할 수 있다.

• 한국식품위생안전성학회지
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• 제33권4호
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• pp.248-254
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• 2018

본 연구에서 소비-섭취 시나리오와 온도-시간의 장염비브리오 생육모델을 활용하여 국내 생굴의 병원성 장염 비브리오균의 위해평가를 실시하였다. 장염 비브리오균의 오염 수준 및 병원성 인자 데이터를 활용하였으며, 국민건강영양조사와 농촌진흥청의 표준레시피를 활용하여 섭취량을 조사하였고 용량반응관계는 Beta-Poisson모델을 활용하였다. 국내 소비자가 생굴을 섭취할 때 병원성 장염 비브리오균으로 발생하는 위해는 식중독이 주로 발생하는 4월, 10월, 11월에 $5.71{\times}10^{-5}$ (5퍼센타일 $2.71{\times}10^{-8}$, 95퍼센타일 $1.03{\times}10^{-4}$로 추정되었다. 본 연구에서 생굴의 장염비브리오 위해의 영향인자는 소비시점 생굴의 장염비브리오균의 오염수준, 생굴 섭취량, 병원성 인자(tdh or trh 유전자)의 존재 여부, 상온의 노출온도 및 시간으로 나타났으며 위해관리방안을 제시하였다.

• 대한지역사회영양학회지
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• 제22권4호
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• pp.347-355
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• 2017

Objectives: Although dietary supplements use in Korea has been rapidly increasing and women are more likely to take dietary supplements more than men, only a few studies have been conducted to investigate factors contributing to gender differences in dietary supplement use in the Korean population. The aim of this study is to evaluate the prevalence of dietary supplement use and also identify gender-specific key factors that contribute to it using the data of the 4th KNHANES. Methods: Subjects were divided into user and non-user groups according to the answer given to the question that asked whether they had used any dietary supplement for more than 2 weeks on a regular basis during the previous year. Factors related to dietary supplement use were examined by general characteristics, health behavior and eating behavior. Results: Prevalence of dietary supplement use was 13.6% for men and 20.6% for women. Users were more likely to be middle-aged, have higher income and education, have a spouse, or reside in dong areas in both men and women. Regarding health behaviors, men with desirable lifestyle behavior were more likely to take dietary supplements, while men who smoked were less likely to take dietary supplements. Regarding disease history, both men and women with a current disease had higher odds of taking supplements. With regard to dietary behavior, frequent eating out and nutrition attitude were associated with higher odds of taking supplements in both men and in women. Conclusions: Health or dietary behavior related factors that were associated with taking supplements differed by gender. These findings can be useful for planning gender-specific dietary education and health programs.

• 한국식품영양학회지
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• 제34권5호
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• pp.430-440
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• 2021

This study was conducted to investigate the intake status of beverages and water in Korean adults using data from the 8th National Health and Nutrition Examination Survey. The 'total water' intake was 2,250.6 g for men and 1,871.2 g for women. Men and women consumed an average of 314.9 g of 'total beverages', of which 'coffee' was the largest at 107.5 g, followed by 'others'(65.4 g), 'milk' (44.8 g), 'soda' (44.1 g), 'teas' (20.9 g), and 'fruits and vegetables' (18.5 g). The intake of 'plain water' was 1,059.9 g, and the intake of 'water from food' consumed was 547.3 g. The 'total water' intake decreased with increasing age in males and females (p<0.001). Both men and women showed a tendency toward increased 'total water' intake as income levels increased. 'Plain water' intake accounted for 51.4% of the 'total water' intake in males and females. The intake of all nutrients significantly increased from the Q1 group to the Q4 group by quartile ranges of total water intake. The results of this study showed that the intake of healthy water should be considered, and care and educational programs are needed, especially for older people, to ensure adequate water intake.

• 한국식품영양학회지
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• 제33권4호
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• pp.399-405
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• 2020

The purpose of this study was to analyze existence of active senior and their sodium intake using the 7th Korea National Health and Nutrition Survey. The samples used for this study were 1,336 males and 1,857 females older than age 45. We used the K-means cluster analysis to distinguish the elderly and one-way analysis of variance (ANOVA) to compare the means statistically among the groups. The analysis confirmed the existence of active seniors and showed different characteristics from other clusters. Also, the sodium intake in active seniors varies with other clusters depending on gender, economic status, social participation and health. In conclusion to reduce the unnecessary social cost of health deterioration of the elderly caused by aging, it is desirable to implement a class-specific policy based on the results of this study.

• 성인간호학회지
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• 제26권1호
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• pp.67-77
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• 2014

Purpose: The purpose of this study is to investigate the prevalence of metabolic syndrome and its components and to examine the related factors in urban and rural community, South Korea. Methods: The data from the 5th Korea National Health and Nutrition Examination Survey (KNHANES-V) conducted in 2010 were utilized in this study. The subjects were 5,760 adults 20 years or over. The data were consisted with health survey questionnaire and health examination. $x^2$-test and logistic regression was used for the analysis SAS 9.3 applying sampling weights. Results: The prevalence of metabolic syndrome based on the latest definition proposed the joint scientific meeting was 23.4% and 29.0% respectively in urban and rural community. Rural community showed higher prevalence of abdominal obesity (29.9% vs 38.5%), elevated blood pressure (31.3% vs 38.5%), elevated blood glucose (24.3% vs 28.4%) than urban community. The related factors were age, marital status, high risk drinking, obesity in urban community and age, marital status high risk drinking, severe physical activity, obesity in rural community. Conclusion: This study showed there was difference in prevalence and the related factors of metabolic syndrome and these findings have important implications to prevent and manage metabolic syndrome in public health field.

• 한국의료질향상학회지
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• 제23권2호
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• pp.57-66
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• 2017

Purpose:The purpose of this study was to identify the patient's characteristics influencing patient's comprehensibleness of doctor's explanation. Methods: This study was conducted as a secondary data analysis using the raw data of The 6th Korea National Health and Nutrition Examination Survey (KNHANES VI) conducted in 2015. The survey sampled 22,948 adults, and 4,469 of them were included in this analysis. Multiple regression analysis was performed to determine the patient's characteristics influencing patient's comprehensibleness of doctor's explanation. Results: The patient's comprehensibleness of doctor's explanation were more higher as age (t=5.65, p<.001), female (t=4.40, p<.001), subjective good health status (t=3.48, p=.001) were higher. On the other hand, the patient's comprehensibleness of doctor's explanation were more higher education level (t=-6.80, p<.001), not-recent outpatient experience (t=-6.04, p<.001), pain/discomfort (t=-2.64, p=.008), anxiety/depression (t=-2.58, p=.010) were lower. Conclusion:It is necessary to be provided the patients who are higher education level, pain/discomfort and anxiety/depression with applying the doctor's detailed explanation and intervention programs.

• 운동영양학회지
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• 제25권4호
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• pp.1-9
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• 2021

[Purpose] This study analyzed data from the 7^th Korean National Health and Nutrition Examination Survey (2016-2018) to compare the differences in energy intake and physical activity (PA) levels in middle-aged Korean men aged 40-59 years according to household type and the presence of metabolic syndrome (MetS). [Methods] Data from 2,266 young adults (aged >39 years and <60 years) were obtained from the KNHANES. We analyzed the differences in energy intake and PA levels according to household type and MetS. The presence or absence of MetS was determined by measuring waist circumference, blood pressure, fasting blood glucose, triglyceride, and HDL-C levels. [Results] Regarding total nutritional intake, no relationship with MetS was observed regardless of household type (interaction between MetS and household type: p = 0.875). No differences in total PA were observed between multiple- and single-person households (interaction between MetS and household type: p = 0.122). The relationship between MetS and MetS components according to nutritional intake showed that participants with a higher energy intake had a 27% lower prevalence of low high-density lipoprotein cholesterol (HDL-C) (p < 0.05) and a 36% higher prevalence of high blood pressure (p < 0.01). The relationship between MetS and MetS components according to the PA level showed significantly reduced prevalence of MetS by approximately 39%, 35%, and 43% (p < 0.01, 0.01, and 0.001) in subjects who were somewhat active, active, and very active, respectively, compared to inactivity. [Conclusion] Middle-aged men showed no difference in nutritional intake and PA between multiple- and single-person households. However, the risk of MetS was significantly higher in participants with approximately 1.5 times the energy intake compared to the group with the lowest energy intake. Moreover, higher levels of PA had a marked positive effect on the risk factors and prevalence of MetS. Therefore, we suggest that reducing the total energy intake and increasing total PA are important for preventing MetS in middle-aged men regardless of household type.