Objective: To study the relations between anthropometric parameters [body mass index (BMI), percent of body fat, waist circumference] and blood lipids of urban children in Beijing and to compare the ability of prediction effect of waist circumference, percent body fat and BMI on lipid profiles.
Methods: 852 children aged 9-10 were recruited with multi-stage sampling. Serum lipids of children were measured using automatic biochemical instrument. Fisher's exact test, trend test and median regression were used to analyze the data from 847 subjects with valid information.
Results: (1)With the rise of the BMI, percent body fat and waist circumference, total triglycerides (TG), total cholesterol (TC) and low density lipoprotein choleasterol (LDL-C) showed increasing trends while high density lipoprotein choleasterol (HDL-C) had a decreasing trend(P < 0.01). (2)TG was mainly influenced by waist circumference (t = 6.86), sex (t = 3.96) and percent of body fat (t = 1.85); TC was influenced by percent of body fat (t = 5.31); LDL-C was influenced by waist circumference (t = 4.65), height (t = -2.79) and percent age of body fat (t = 2.77); HDL-C was influenced by waist circumference (t = -12.24), sex (1= -5.83).
Conclusion: With the aggravation of children's fatness (BMI, WC and PBF), serum lipids would increase and WC seemed to be the best predictor for lipids among BMI, WC and PBF.