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Distribution of HDL-cholesterol and non-HDL-cholesterol in Brazilian children and adolescents--the Floripa study
I Giuliano1, S Freitas, M Coutinho
1Universidade Federal de Santa Catarina, Departamento de Pediatria, Trindade, Florianópolis, SC, Brazil. isabela@ccs.ufsc.br
Insights
Low HDL-cholesterol (HDL-C) levels in Brazilian children were linked to inflammation and obesity indicators. High non-HDL-cholesterol (nHDL-C) was associated with abdominal obesity, darker skin color, and higher income.
Area of Science:
- Pediatric Cardiology
- Lipid Metabolism
- Public Health
Background:
- High-density lipoprotein cholesterol (HDL-C) and non-HDL-cholesterol (nHDL-C) play roles in atherosclerosis.
- Understanding their distribution in pediatric populations is crucial for early cardiovascular risk assessment.
Purpose of the Study:
- To determine the distribution of HDL-C and nHDL-C in a Brazilian pediatric sample.
- To investigate associations between HDL-C and nHDL-C levels and cardiovascular and socio-cultural variables.
Main Methods:
- Random selection of children and adolescents from Florianopolis.
- Administration of questionnaires, physical examinations, and blood sample collection.
- Enzymatic and Direct methods for cholesterol level determination; logistic regression for association analysis.
Main Results:
- 23% of participants had low HDL-C, and 25% had high nHDL-C.
- Low HDL-C associated with high C-reactive protein, paternal tobacco use, and high triceps-to-subscapular index.
- High nHDL-C associated with high waist circumference, black skin color, and high income.
Conclusions:
- Low HDL-C levels in this pediatric sample were linked to clinical factors like C-reactive protein and a centripetal fat pattern.
- High nHDL-C levels were associated with abdominal obesity, skin color, and economic class.
Background And Aims:
HDL-cholesterol (HDL-C) and non-HDL-cholesterol (nHDL-C) are involved in atherosclerosis. The aim of this study was to determine the distribution of HDL-C and nHDL-C and its association with cardiovascular and socio-cultural variables in a pediatric Brazilian sample.
Methods And Results:
Children and adolescents from Florianopolis were randomly selected and a structured questionnaire was administered, a physical examination was performed and a blood sample was collected. Enzymatic and Direct methods in vitro were used to determine the total cholesterol and HDL-cholesterol levels. The associations among HDL-C and nHDL-C and the described variables were tested by odds ratio and logistic regression. A total of 1009 individuals were examined. Based on the Brazilian criteria, 23% were classified with low levels of HDL-C and 25% with high levels of non-HDL-C. After multivariate analysis there were significant associations among low HDL-C and high C-reactive protein (OR, 3.3; 95% CI, 2.1-5.2), paternal tobacco use (OR, 1.5; 95% CI,1.1-2.1), and high triceps-to-subscapular index (OR, 1.5; 95% CI, 1.1-2.2). There were also significant associations among high nHDL-C and high waist circumference (OR, 1.95; 95% CI, 1.16-3.29), black skin color (OR, 1.78; 95% CI, 1.06-3.06), and high income (OR, 1.48; 95% CI, 1.09-2.02).
Conclusions:
In this sample, low levels of HDL-C were associated with other clinical variables such as a centripetal fat pattern and C-reactive protein, and n-HDL-C was associated with abdominal obesity, skin color and economic class.
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