• Journal of the Korea Convergence Society
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• v.12 no.9
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• pp.351-360
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• 2021

The aim of the study was to assess the prevalence of young adults obesity, morbid obesity and severe obesity and to identify associated factors. Data for 50,095 participants aged 20-39 from Community Health Survey 2019. Chi-square test and multiple logistic regression were used for the analysis. Prevalence for young adults obesity, morbid obesity and severe obesity were 23.60%, 5.86% and 1.31%. Aged of 20's, male, low income, low educational level and marital status were found to be associated with all stages of obesity. Current smoking, high risk drinking, physical activity, health promotion practices, subjective health, EQ-5D, stress, depressive symptoms and comorbidities increased the prevalence of obesity in young adults. Health check-up, subjective health, EQ-5D, stress, depressive symptoms and comorbidities increased the prevalence of severe obesity in young adults. Based on the results, it is necessary to develop and provide focused intervention consisting of characteristics of young adults and stages of obesity.

• Journal of Life Science
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• v.12 no.2
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• pp.226-232
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• 2002

In this study, the researcher classified primary school boys with obesity into light(% fat : 20∼24.9%), moderate(25∼29.9%) and heavy(30% or more) obese group and then analyzed and evaluated their own levels of insulin, leptin and lipids in blood. The level of insulin was significantly high in primary school students with heavy obese rather than in the other two groups. While that of leptin, significantly high in those children with moderate and heavy obese rather than in the other group of light obese. The level of T-C was significantly high in primary school students with light obese rather than in those students with heavy obese. HDL-C tended to increase as %fat went up, but there was no significant difference. The level of TG was significantly high in the group of heavy obese compared to the other groups. LDL-C tended to increase gradually as %fat became high. Thus, depending on %fat, primary school students with obesity were significantly different with each other in insulin, leptin T-C and TG levels. This suggests the urgent necessity of developing systematic and separate programs to treat such obese children.

• Journal of agricultural medicine and community health
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• v.31 no.2
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• pp.177-185
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• 2006

Objectives: This study was carried out with 31, 519(16,653 boys, 14,857 girls) of elementary school students to investigate the prevalence of obesity at a district in Gwangju City. It can be applied to develope an educational program of the obesity control as basic data in this local area Methods: The data collected from May, 2004 to July, 2004 were analyzed by SAS PC+ 8.0 program. Children were selected depending on criteria from obesity index (%) by using physical index (height, body weight), and then subjects were classified into one of three groups according to the degree of obesity: mild(20~29.9%), moderate(30~49.9%), and severe($?50%{\cdot}$) obesity. Results: It showed that male elementary school students were higher and heavier than female elementary school students(p< .001) in every grade except the 4th grade(height) and the 6th grade ( body weight). The obesity rates of male students(11.6%) showed higher(p< .001) than those of female students(8.8%). Specially the 4th grade elementary school boys were higher than any other groups in obesity(13.7%). As a whole, the prevalence of obestiy showed mild(5.9%), moderate(3.8%), and severe(0.6%). Male students showed higher rate of obesity than those of female students. The obesity of male students showed higher rate than that of female students except 2-3rd grade elementary school students(p< .001). The obesity of 4~6th grade elementary school students showed higher rate than those of 1~3rd grade students(p< .001). Conclusions: The obesity rates of male students are higher than that of female students, and the obesity rates of 4~6th grade students are higher than those of 1-3rd grade students in the elementary school. Additionally, these results suggest that the program may be needed to prevent obesity of children.

• Journal of Nutrition and Health
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• v.53 no.4
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• pp.381-389
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• 2020

Purpose: This study examined the relationships among serum ferritin, vitamin D, folate, iron, and vitamin B₁₂ as indicators of obesity. The results provide the basic data for the prevention and treatment of obese and severely obese people. Methods: This study selected 44 people from 18 years of age or older to 59 years. This study used the indicators of the body mass index (BMI) to analyze obesity as the obesity group (BMI of 25.0-29.9 kg/㎡) and as the severe obesity group (BMI ≥ 30.0 kg/㎡). Of the 44 subjects, 23 and 21 subjects were in the obesity and severe obesity groups, respectively. Their height, weight, body fat, skeletal muscle mass measured using bioimpedance analysis, and measured serum nutrients and biochemical parameters. Results: The obesity group showed a significantly lower age, body weight, BMI and body composition, body fat mass, and body fat percentage, and the height was significantly lower in the severe obesity group. The results of the biochemical parameters of the subjects showed that the levels of aspartate transaminase, alanine transaminase, hemoglobin A1c, total cholesterol, and triglyceride were within the normal range, and there was no significant difference between the 2 groups. The levels of folate, vitamin B₁₂, 25-hydroxyvitamin D₃, iron, and ferritin were almost normal, and there was no significant difference between the 2 groups. Conclusion: This study revealed an association with the serum nutrients and obesity, but there was no difference between the obesity group and severe obesity group. Observations of the nutrient levels in not only the blood in obesity and severe obesity but also in red blood cells and tissues will be necessary.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.9 no.2
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• pp.218-225
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• 2006

Purpose: With a remarkable increase in the prevalence of childhood obesity, the prevalence of nonalcoholic fatty liver disease is assumed to be increasing. The aim of this study is to evaluate the prevalence of nonalcoholic fatty liver disease, hyperlipidemia, and glucose intolerance in normal and obese children. Methods: A total of 2,206 elementary students (boys: 1340, girls: 866) were grouped according to obesity index; normal group and obesity group (mild, moderate, severe). Aspartate aminotransferase (AST, SGOT) and alanine aminotransferase (ALT, SGPT) were measured with total cholesterol, triglyceride, and fasting blood glucose. Results: Compared with the 4.6% of elevated aminotransferases in normal group, obese groups showed significantly higher prevalence; 12.1% in mild obesity group, 19.4% in moderate group, and 21.6% in severe group (p<0.0001). The prevalence of hypertriglyceremia was 16.9% in normal weight group, which was significantly lower than obesity group (mild obesity group 30.3%, moderate and severe 37.6%, 38.2% each). In boys, the prevalences of elevated aminotransferases in normal weight and obese groups (mild, moderate, severe) were 6.8%, 18.0%, 23.0%, and 26.0%, respectively (p<0.0001). In girls, those were 2.1%, 5.1%, 12.0%, and 12.6%, respectively (p< 0.0001). The prevalence of hypertriglyceremia was relative to severity of obesity in boys and girls (p<0.0001). Conclusion: The prevalence of elevated serum liver enzymes increased with severity of obesity. For the prevention and treatment of fatty liver and hypertriglycemia, it is important to lower the obesity degree and enforce the education for a weight loss in the student and the parents.

• 건강소식
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• v.32 no.2 s.351
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• pp.28-31
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• 2008

최근 가정생활과 식생활의 변화로 인해 소아비만이 점점 늘고있다. 고도 소아비만 환자 중 60% 이상은 고지혈증, 40% 이상은 지방간 소견을 보이며 고혈압 환자도 7%를 넘는다고 한다. 1981년까지 남녀 모두 0%대였지만 1997년도 이후 급증해 2002년도에는 남학생 1.5%, 여학생 0.7%로 늘어난 것이 고도 소아비만 환자다. 2006년도 조사에서 계속 증가하던 중고생들의 평균 신장이 최초로 줄었다는 통계도 나왔는데 이는 비만이 적지 않은 영향을 미친 것으로 알려져 있다. 우리 아이의 비만을 이대로 방치할 수 없는 수준에 이르렀다.

• Proceedings of the Korean Nutrition Society Conference
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• 2001.05a
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• pp.133.1-133
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• 2001

• Clinical and Experimental Pediatrics
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• v.45 no.5
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• pp.588-595
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• 2002

Purpose : The incidence of obesity has increased in Korea recently. Obesity leads to higher risks of hypertension, hyperlipidemia and insulin resistance. It also leads to risks of respiratory complications. This study was performed to see the effects of obesity on children's pulmonary functions and on developed bronchospasm after exercise loading according to their obesity degrees. Methods : 257 obese children and 150 non-obese children were enrolled. Obese children were divided into 3 groups by the obesity degrees. Pre- and post-exercise loading $FEV_1$(forced expiratory volume at one second), FVC(forced vital capacity) and PEFR(peak expiratory flow rate) were checked in all subjects. The percent predicted values of each parameter was compared according to obesity degrees and the differences between pre-exercise and post-exercise values. Results : The percent predicted value of $FEV_1$, FVC decreased only in the severe obesity group compared with those in the control group. However percent predicted PEFR declined according to obesity degrees. The percent predicted value of $FEV_1$, FVC and PEFR after exercise loading were much lower than those before exercise loading in all groups. Conclusion : As the degree of obesity was higher, the percent predicted value of pulmonary function was lower. And after exercise loading, as the degree of obesity was higher, the reduction of percent predicted value of pulmonary function was larger. Therefore the pulmonary function in obese children must be observed carefully. Further studies on the effects of pulmonary functions in obese children are necessary.

• Journal of the Korean Society of Radiology
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• v.5 no.6
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• pp.363-367
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• 2011

Generally, the osteoporosis of a middle-aged women have been reported that was a high risk in underweight, but the obese women have feasible osteoporosis. Therefor, the subjects were 120 middle-aged women that were diagnosed with osteoporosis in the bone mineral densitometer (BMD), this study was done for the purpose of analyzing the relationship between osteoporosis and body mass index (BMI) of the middle-aged women. We were determined BMI which was less than 18.5 underweight, 18.5 to 22.9 normal, 23.0 to 24.9 overweight, 25.0 to 29.9 obesity and extremely obesity were more than 30. When we examined the BMI distribution of the subjects, it was 2 women (1.7%) for underweight, 18 women (15.0%) for normal, 19 women (15.8%) for overweight, 75 women (62.5%) for obesity and 6 women (5.0%) for extremely obesity. Also, the relationship between osteoporosis and BMI of the subjects, it was the osteoporosis in 13 cases out of 18 (72.2%) with normal, in 14 case out of 19 (73.7%) with overweight, in 63 case out of 75 (84%) with obesity, in 5 case out of 6 (83.3%) with extremely obesity, besides, the osteoporosis usually marks the highest in a BMI with obesity. In conclusion, the result of analyzing the relationship between osteoporosis and BMI, we found out that the osteoporosis of the middle-aged women was high risk with obesity, and that was mostly higher the osteopenia rather than osteoporosis.

• Korean Journal of Community Nutrition
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• v.5 no.4
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• pp.759.2-760
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• 2000