Σάββατο 8 Ιουλίου 2017

Distinct Lipoprotein Curves in Normal Weight, Overweight and Obese Children and Adolescents.

Objectives: Pediatric lipoprotein curves are based on population-based samples. As obesity, may alter lipoprotein levels, cut-offs not adjusted for body mass index (BMI) are potentially inappropriate. We aimed to develop distinct serum lipid curves based on sex and BMI-percentiles for children and adolescents. Methods: Cross-sectional analysis included all healthy children and adolescents (age range 2-17 years) with available serum lipid concentrations (n = 152,820 of approximately 1.2 million children and adolescents per study year). These children and adolescents were categorized according to sex- and age-stratified BMI-percentiles: 100,375 normal weight (5th-85th percentile), 26,028 overweight (85th-95th percentile) and 26,417 obese (>=95th percentile) individuals. Excluded were individuals with hyperlipidemia, gastrointestinal disease, thyroid disease and lipid-lowering medications. Lambda-Mu-Sigma, smoothed percentile lipid curves were computed. Results: Obese children had a lipid profile pattern throughout childhood and adolescence similar to that of normal weight subjects but with a significant upward shift in total cholesterol (TC), low-density lipoprotein-cholesterol (LDL-C), non-high-density lipoprotein-cholesterol (non-HDL-C) and triglycerides (TG) and a downward shift in high-density lipoprotein-cholesterol (HDL-C). Obese boys had 13 mg/dl higher TC levels (P

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