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J Pediatr Gastroenterol Nutr. 2017 Jul 6. doi: 10.1097/MPG.0000000000001674. [Epub ahead of print]

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

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*Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 69978, Israel †Dana-Dwek Children's Hospital, Tel Aviv 64239, Israel ‡The Jesse Z. and Sara Lea Shafer Institute for Endocrinology and Diabetes, National Center for Childhood Diabetes, Schneider Children's Medical Center of Israel, Petah Tikva 49202, Israel §Health Planning and Policy Wing, Clalit Health Services, Tel Aviv 62098, Israel ||Institute of Gastroenterology, Nutrition and Liver Diseases, Schneider Children's Medical Center of Israel, Petah Tikva 49202, Israel.



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.


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.


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 < .001), 11 mg/dl higher LDL-C levels, 15 mg/dl higher non-HDL-C levels and 5 mg/dl lower HDL-C levels (P < .001). Obese girls had 6 mg/dl higher TC levels, 7 mg/dl higher LDL-C, 11 mg/dl higher non-HDL-C levels and 6 mg/dl lower HDL-C levels (P < .001).


Across a large, nationally representative cohort of children and adolescents, lipoprotein levels were found to vary in relation to weight status. On the basis of these findings, it is suggested that when evaluating the lipid profile in the pediatric population, in addition to gender-based curves, clinical decision-making may require consideration of BMI-stratified curves.

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