• Nutrition Research and Practice
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• v.9 no.2
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• pp.199-206
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• 2015

BACKGROUND/OBJECTIVE: Even though the prevalence of metabolic syndrome in adolescents is increasing, little is presently known about this syndrome in adolescents. This study aimed to cluster metabolic risk factors as well as examine the associations between identified patterns and nutrient intake using data from the Korean National Health Examination and Nutritional Assessment (KNHANES). SUBJECTS/METHODS: A total of 2,958 subjects aged 10 to 18 years along with both biochemical and dietary data information were obtained from KNHANES 2007-2010. Six components of metabolic syndrome were used to identify any patterns via factor analysis. Individuals were categorized into quartile groups according to their pattern score. RESULTS: Three clustering patterns with high loadings were identified and named as follows: 1) high blood pressure, 2) dyslipidemia, and 3) glucose abnormality patterns. The high blood pressure pattern showed high loadings of systolic and diastolic blood pressures, the dyslipidemia pattern showed high loadings of triglyceride and HDL-cholesterol levels, and the glucose abnormality pattern showed high loadings of fasting blood glucose levels. Intakes of fat and riboflavin were significantly decreased, whereas those of sodium and niacin were significantly increased across the quartiles in the dyslipidemia pattern. No nutrient intake except that of thiamin was significantly associated with the high blood pressure or glucose abnormality pattern. CONCLUSION: Our findings show that metabolic syndrome risk factors in the Korean adolescent population are characterized by three distinct patterns, which are differentially associated with dietary factors. Characterizing metabolic risk factors and providing specific dietary guidelines for target groups are important.

• Physical Therapy Korea
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• v.28 no.3
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• pp.177-185
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• 2021

Background: Muscle undergoes change continuously with aging. Sarcopenia, in which muscle mass decrease with aging, is associated with various diseases, the risk of falling, and the deterioration of quality of life. Obesity and sarcopenia also have a synergy effect on the disease of the older adults. Objects: This study examined the risk factors for sarcopenia, sarcopenic obesity, and sarcopenia without obesity and developed prediction models. Methods: This machine-learning study used the 2008-2011 Korea National Health and Nutrition Examination Surveys in the analysis. After data curation, 5,563 older participants were selected, of whom 1,169 had sarcopenia, 538 had sarcopenic obesity, and 631 had sarcopenia without obesity; the remaining 4,394 were normal. Decision tree and random forest models were used to identify risk factors. Results: The risk factors for sarcopenia chosen by both methods were body mass index (BMI) and duration of moderate physical activity; those for sarcopenic obesity were sex, BMI, and duration of moderate physical activity; and those for sarcopenia without obesity were BMI and sex. The areas under the receiver operating characteristic curves of all prediction models exceeded 0.75. BMI could predict sarcopenia-related disease. Conclusion: Risk factors for sarcopenia-related diseases should be identified and programs for sarcopenia-related disease prevention should be developed. Data-mining research using population data should be conducted to enhance the effectiveness of early treatment for people with sarcopenia-related diseases through predictive models.

• Journal of East-West Nursing Research
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• v.27 no.1
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• pp.51-60
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• 2021

Purpose: The purpose of this study was to identify factors associated with high risk drinking in adults. Methods: Multi-variate logistic regression was used to analyze the data of 15,949 adults age 19 years or older from the sixth (2013-2015) Korea National Health and Nutrition Examination Survey. Results: Factors associated with high risk drinking included education level, employment and smoking status among the age group of 19-39. In the 40-59 year age group, the associated factors were gender, employment, smoking, obesity, and depressive mood. In the over 60 year age group, related factors included gender, employment, smoking, abdominal obesity, and subjective health status. Conclusion: The result of this study suggests that early risk factor screening may be helpful to avoid the progression to high-risk drinking. An individualized approach for each age group can be used as a preventive measure.

• Safety and Health at Work
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• v.14 no.3
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• pp.279-286
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• 2023

Background: This study aimed to evaluate the association between exposure to occupational hazards and the metabolic syndrome. A secondary objective was to analyze the additive and multiplicative effects of exposure to risk factors. Methods: This retrospective cohort was based on 31,615 health examinees at the Pusan National University Yangsan Hospital in Republic of Korea from 2012-2021. Demographic and behavior-related risk factors were treated as confounding factors, whereas three physical factors, 19 organic solvents and aerosols, and 13 metals and dust were considered occupational risk factors. Time-dependent Cox regression analysis was used to calculate hazard ratios. Results: The risk of metabolic syndrome was significantly higher in night shift workers (hazard ratio = 1.45: 95% confidence interval = 1.36-1.54) and workers who were exposed to noise (1.15:1.07-1.24). Exposure to some other risk factors was also significantly associated with a higher risk of metabolic syndrome. They were dimethylformamide, acetonitrile, trichloroethylene, xylene, styrene, toluene, dichloromethane, copper, antimony, lead, copper, iron, welding fume, and manganese. Among the 28 significant pairs, 19 exhibited both positive additive and multiplicative effects. Conclusions: Exposure to single or combined occupational risk factors may increase the risk of developing metabolic syndrome. Working conditions should be monitored and improved to reduce exposure to occupational hazards and prevent the development of the metabolic syndrome.

• Journal of the Korean Society of Physical Medicine
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• v.19 no.3
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• pp.103-110
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• 2024

PURPOSE: This study aims to analyze the prevalence and risk factors of stroke in Korean older adults and provide basic data for stroke prevention. METHODS: Based on the data from the 2019-2021 Korea National Health and Nutrition Examination Survey, 5,750 adults aged 65 or older who participated in the health survey were selected. Risk factors for stroke were analyzed through complex sample multiple logistic regression analysis. RESULTS: As a result of this study, the prevalence of stroke among the subjects was 6.20%. Stroke risk factors were elderly, male, low personal income level, and current and past smoking experience. The risk of stroke prevalence was OR 1.076 (95% CI 1.048-1.104) higher with each age increase. According to gender, the risk of stroke prevalence was OR 1.587 (95% CI 1.068-2.358) higher in males compared to females. In the case of individual income level, the risk of stroke prevalence was OR 1.509 (95% CI 1.011-2.253) higher in Q1, the lowest compared to Q4, which has the highest income level, and it was not significant in Q2, and Q3. Compared to non-smokers, current smokers had an OR 1.717 (95% CI 1.087-2.712), and past smokers had an OR 1.546 (95% CI 1.095-2.183). CONCLUSION: The prevalence of stroke in Korean older adults was 6.20%, and the risk factors for stroke were old age, men, low individual income level, and smoking. Therefore, prevention programs and smoking cessation education are needed for subjects with stroke risk factors.

• Journal of Korean Public Health Nursing
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• v.28 no.1
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• pp.71-86
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• 2014

Purpose: This study was conducted in order to identify factors that predict suicidal ideation and depression according to gender among Korean adults. Method: From the data base of the fifth Korean National Health and Nutritional Examination Survey(KNHANESV-1, 2010), data on 4,894 adults aged 19~64 were used. Data were analyzed by application of the Rao-Scott Chi-Square test and logistic analysis with SAS 9.2. Results: Overall, 8.5% of men and 18.1% of women had suicidal ideation during the last year; 7.5% of men and 17.0% of women had depression during the last two weeks. Risk factors for suicidal ideation include perceived high stress(OR male 3.649, female 2.941), depression(OR male 10.109, female 6.033), poor cognition of health status(OR male 8.115, female 6.664), low economic status(OR male 1.898), and low educational status(OR female 1.631). Risk factors for depression include perceived high stress(OR male 2.678, female 3.686), suicidal ideation(OR male 9.925, female 6.022), non-employed(OR female 1.525), married(OR female 2.392), and physical discomfort(OR female 1.545). Conclusions: Based on the above mentioned results, risk factors of suicidal ideation and depression differed according to gender. Development of various policies and appropriate intervention programs according to gender, that lessen the risk of suicidal ideation and depression for adults is needed.

• Journal of Society of Preventive Korean Medicine
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• v.15 no.1
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• pp.89-98
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• 2011

Objectives : The aim of this study was to investigate the prevalence of metabolic syndrome and the association between lifestyle factors and the risk of metabolic syndrome in Korean adolescents. Methods : The metabolic syndrome was defined with ${\geq}$ 3 metabolic abnormalities using the age-modified criteria of the Adult Treatment panel III specified by National Cholesterol Education Program in adolescents aged 12 to 18 years who have participated in the Kroean National Health and Nutrition Examination Survey in 1998(n＝936) and 2008(n＝620). Physical activity and dietary intakes were assessed. Results : The overall prevalence of metabolic syndrome in Korean adolescents declined over 10 years (P < 0.01). Adolescents engaging regular exercise significantly increased over 10 years (P < 0.001). Physically activity was associated with a lower risk of metabolic syndrome (P < 0.001). Dietary intake patterns were not associated with a risk of metabolic syndrome. Conclusions : The prevalence of metabolic syndrome among Korean adolescents declined over 10 years which may be in part due to the increased regular physical activity. The risk of metabolic syndrome is lower in individuals who are physically active.

• Nutrition Research and Practice
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• v.12 no.3
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• pp.233-242
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• 2018

BACKGROUND/OBJECTIVES: The effects of fish consumption by subjects with prediabetes on the metabolic risk factors were examined based on the data from the $6^{th}$ Korea National Health and Nutrition Examination Surveys in 2015. SUBJECTS/METHODS: A total of 1,520 subjects who agreed to participate in a blood test and dietary intake survey were divided into a prediabetes group and normal blood glucose group, and the level of the subjects' fish consumption was divided into ${\leq}17.0g/day$, 18.0-93.0 g/day, and ${\geq}94g/day$. The correlation between the level of fish intake and the metabolic risk factors was evaluated by multinomial logistic regression analysis. RESULTS: A significant difference in the gender distribution was observed in the prediabetes group, which is a group with a high risk of non-communicable diseases, according to the fish intake, and there were significant differences in the total energy intake, protein intake, n-3 fatty acids intake, and the intakes of sodium and micro-nutrients according to the intake group (P < 0.05). In addition, the blood total cholesterol (TC) decreased 0.422 fold in model 1 (unadjusted) [95% confidence interval (CI): 0.211-0.845] and 0.422 fold in model 2 (adjusted for sex) (95% CI: 0.210-0.846) in those with a fish intake of 18.0-93.0 g/day (P < 0.05) compared to those with a fish intake of ${\leq}17.0g/day$. The blood TC decreased 0.555 fold (95% CI: 0.311-0.989) in model 1 and 0.549 fold (95% CI: 0.302-0.997) in model 2 in those with a fish intake of ${\geq}94g/day$ compared to those with a fish intake of ${\leq}17.0g/day$ (P < 0.05). CONCLUSION: Subjects with prediabetes or the metabolic risk factors can maintain their blood low density lipoprotein cholesterol (LDL-C) and blood TC concentrations at the optimal level by consuming fish (18.0-93.0 g/day).

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.3
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• pp.1641-1649
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• 2014

This study aimed to analyze the occurrence of colon polyps and also risk factors of colon polyps. Among health examination examinees, 508 people were included who underwent colonoscopy and abdominal ultrasonography at the same time. Physical measurements also performed such as height, weight, blood pressure, waist measurement and BMI. General characteristics including age, sex, smoking, drinking and exercise as a risk factors were checked. At the same time, we analyzed various blood tests and fasting blood sugar through blood-gathering. In the results, regarding risk factors of colon polyps, AST, ALT, TC, fatty liver, obesity and smoking were shown significantly high. As a dependent variable with colon polyps, the highest relation was fatty liver(3.4 times), and then T-C(2.3 times). Smoking factor showed 2.3 times higher relation than non-smokers.

• Journal of the Ergonomics Society of Korea
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• v.29 no.4
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• pp.435-444
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• 2010

To identify and evaluate the risk factors in WMSD work, a number of ergonomic workload evaluation methods have been developed. In the legal examination of WMSD risk factors, simple observational workload evaluation methods are widely used instead of using costly measurement equipments such as EMG and motion analyzer. The simple workload evaluation methods can be categorized into three groups; risk factor checklist methods, posture observation methods, and manual material handling task evaluation methods. In terms of the categories, this survey summarized several representative workload evaluation methods and compared them each other. Then some industrial application cases referring each the workload evaluation methods were surveyed. Due to the characteristics of each method, the selection and application procedure of workload evaluation method should be appropriate for the corresponding work. Therefore, some guidelines for the selection and application procedure of workload evaluation method were suggested.