Journal List > Endocrinol Metab > v.27(3) > 1085957

Kim, Ahn, Joung, and Park: Lipid Profiles and Prevalence of Dyslipidemia in Korean Adolescents

Abstract

Background

The aim of this study is to investigate the distribution of plasma cholesterol and triglyceride levels as well as the prevalence of dyslipidemia among Korean adolescents.

Methods

We analyzed data for 3,045 adolescents aged 10-18 years (1,622 boys and 1,423 girls) who participated in the Korea National Health and Nutrition Examination Surveys from 2007 to 2010.

Results

The mean values of total cholesterol, triglycerides, low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C) were 159, 89, 89, and 52 mg/dL, respectively. Plasma cholesterol levels were significantly higher in girls than those in boys (162.1 mg/dL vs. 155.6 mg/dL, P < 0.0001). The 90th percentile values of total cholesterol, triglycerides, and LDL-C were 192, 149, 117 mg/dL for boys, and 195, 147, 119 mg/dL for girls. The 10th percentile value of HDL-C was 38 mg/dL for boys and 40 mg/dL for girls. Triglyceride, LDL-C cholesterol levels increased, whereas plasma HDL-C levels decreased with increasing the body mass index (P < 0.0001) in both genders. Total cholesterol levels significantly increased with increasing the body mass index, especially in boys (P < 0.0001). The prevalence of dyslipidemia was 25.2% for boys and 21.7% for girls; this value significantly increased with overweight (37-40%) and obesity (53-56%). Independent predictors (odds ratio) of dyslipidemia were age (1.49), overweight (2.06), and obesity (5.11) for boys; overweight (1.95) and obesity (3.22) for girls.

Conclusion

Adolescent dyslipidemia is strongly associated with obesity. Lipid screening for overweight or obese youths should be emphasized. Further, longitudinal studies examining the impact of childhood obesity and dyslipidemia on subsequent cardiovascular diseases are needed.

Figures and Tables

Fig. 1
Prevalence of dyslipidemia stratified by body mass index (BMI) and age.
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Table 1
General characteristics of the participants
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Values are expressed as mean ± SD or number (%).

BMI, body mass index; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; WC, waist circumference.

Table 2
Distributions of cholesterol and triglyceride levels by gender and age
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HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol.

Table 3
Mean values of cholesterol and triglycerides by body mass index
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HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol.

Table 4
Prevalence of dyslipidemia by body mass index
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Values are expressed as percentage.

*Total cholesterol > 200 mg/dL; Triglycerides > 150 mg/dL; LDL-cholesterol > 130 mg/dL; §HDL-cholesterol < 40 mg/dL; Having at least one of the lipid profiles among hypercholesterolemia, hypertriglyceridemia, hyper-LDL cholesterol and hypo-HDL-cholesterol.

HDL, high-density lipoprotein; LDL, low-density lipoprotein.

Table 5
Independent risk factors for dyslipidemia
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*Energy intake-adjusted odds ratios for dyslipidemia by multivariate logistic regression analyses.

BMI, body mass index; CI, confidence intervals; OR, odds ratio.

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