A Study on the Obesity Incidence Rate and Fat Intake, Serum Total Cholesterol/Triglyceride Concentrations by Obese Index in the Elementary School Students

초등학생의 비만 이환율 및 비만도에 따른 지방 섭취량ㆍ혈청 총콜레스테롤/중성지질 수준 연구

The obesity incidence rate of children in Korea has increased from 2 to 3% in 1970 to 15% in 2004. The purpose of this study was to evaluate the effect of diet on obesity, and serum cholesterol and triglyceride concentrations by obese index in Korean elementary school students. The subjects were three hundred and thirteen students(male 157, female 156). Height, weight and body fat were measured. Dietary records by the 24-hr recall method were taken for 3 days, and serum cholesterol and triglyceride concentrations were determined. The obesity index was calculated by the Korean of Pediatrics Association standards. Nutrient intakes were calculated by CAN PRO. Almost twenty percent(19.8%) of the subjects were underweight, 60.1 % were normal, 10.2% were overweight and 9.9% were obesity. The obesity incidence rate of the males was not different from the females. Energy and nutrients intakes containing fatty acids were not significantly different by the obesity index. All the subjects had 59.7%～61.1% of carbohydrate and 24.2%～25.6% of fat for energy. Serum cholesterol concentrations of the obesity group(177.3 mg/dl) was higher than those of the underweight group(161.8 mg/dl) and normal weight group(163.5 mg/dl) and overweight group(163.8 mg/dl). Twenty nine percent of the obesity group had serum cholesterol concentrations over 200mg/dl, as compared with 4.8% of the normal and underweight group. Serum triglyceride in the obesity group(103.0mg/dl) was higher than those of the underweight group(79.7 mg/dL), normal weight group(81.0 mg/dl) and overweight group(81.1 mg/dl). Serum total cholesterol concentrations were correlated with the obese index, PIBW, R hrer index at p<0.001, with BMI at p<0.01 and with waist/hip ratio at p<0.05. Serum triglyceride concentrations were correlated with the obese index, PIBW, R hrer index at p<0.01. It is concluded that obesity increases serum total cholesterol concentrations and triglyceride concentrations, and that the obesity preventive program for normal weight children, and weight reduction program for obese children are necessary for elementary school children's education.