ABSTRACT
Objetivo: avaliar os níveis séricos de não HDL-colesterol (não HDL-c) e perfil lipídico em jovens entre seis e 19 anos. Método: estudo descritivo transversal e descritivo. As variáveis foram: colesterol total e frações, não HDL-c, triglicérides e IMC. Excluíram-se portadores de doença ou em uso de fármaco que alterem o perfil lipídico e pacientes com triglicérides > 400 mg/dL. Utilizado SPSS-17 para análise das variáveis. Resultados: participaram 108 jovens, sendo 63 do gênero feminino. Na amostra total, a média de não HDL-c foi 114,7 mg/dL e de LDL-c 94,9 mg/dL. Não houve diferença significativa dos valores de não HDL-c e LDL-c entre os gêneros e faixa etária. No estudo, o LDL-c e o não HDL-c tiveram forte correlação entre si R= 0,864 e com o colesterol total R= 0,890 e R= 0,907, respectivamente. O LDL-c correlacionou-se negativamente com VLDL-c. O não HDL-c correlacionou-se positivamente com VLDL-c e triglicérides.Quanto ao IMC, 3,7% estavam abaixo do normal, 49,1% eutróficos, 23,1% com sobrepeso e 24,1% obesos. Pacientes obesos apresentaram níveis significativamente maiores de não HDL-c, VLDL-c e TG e nível menor de HDL-c em relação aos eutróficos. Os valores de não HDL-c correspondentes aos percentis 75 e 95 foram 129 e 157 mg/ dL, respectivamente. Conclusão: não HDL-c obteve melhor correlação que o LDL-c com diferentes variáveis lipídicas e foi melhor parâmetro na avaliação lipídica em pacientes obesos. Assim, o não HDL-c mostrou-se método confiável e promissor para investigar dislipidemias em escolares e adolescentes.
Objective: to evaluate the serum levels of non-HDL-cholesterol (non-HDL-c) and lipid profile in young people between six and 19 years old. Method: this was a cross-sectional and descriptive, and descriptive study. The variables were: total cholesterol and fractions, non-HDL-c, triglycerides, and BMI. Those with disease or using drugs that alter the lipid profile, and patients with triglycerides > 400 mg/dL were excluded from the study. SPSS- 17 was used for the analysis of variables. Results: 108 young people participated; 63 females. The average of non-HDL-c was 114.7 mg/dL and LDL-c 94.9 mg/dL. There was no significant difference between the values of non-HDL-c and LDL-c between genders and age groups. LDL-c and non-HDL-c showed strong correlation, R = 0.864 and total cholesterol R= 0.890 and R= 0.907, respectively. LDL-c negatively correlated with VLDL-c. Non-HDL-c positively correlated with VLDL-c and triglycerides. The IMC results showed that 3.7% were below normal, 49.1% eutrophic, 23.1% overweight, 24.1% obese. Obese patients showed significantly higher levels of non-HDL-c, VLDL-c, and TG and lower levels of HDL-c compared to eutrophics. The values of non-HDL-c corresponding to 75 and 95 percentiles were 129 and 157 mg/dL, respectively. Conclusion: non-HDL-c showed better correlation than LDL-c with different lipid variables and was the best parameter for lipid assessment in obese patients. Thus, non-HDL-c showed to be a reliable and promising method of investigating dyslipidemias in schoolchildren and teenagers.
ABSTRACT
Introduction: Childhood obesity is a matter of growing public health concern worldwide and may be associated with risks of illness and premature death in adulthood. In the light of increasing numbers of individuals presenting excessive weight, studies in Brazilian schools have shown that the prevalence of obesity and overweight among children varies according to the region, age group and type of school attended (public or private). Objective: To determine the prevalence of overweight and obesity among children in private schools in Aracaju, Sergipe, Brazil. Materials and Methods: Anthropometric examinations (weight, height and calculations of body mass index (BMI) and percentiles) were conducted on 600 children aged 7 years to 12 years and 11 months at five private schools in Aracaju. All of them were asked about their physical exercise practices. To determine overweight and obesity, respectively, the 85th and 97th percentiles of the World Health Organization’s BMI curve were used. Results: Among the children studied, 21.5% (129) presented obesity (95% CI:18.3%- 24.8%) and 22.3% (134) presented overweight (95% CI:18.8-25.3). There was greater prevalence of obesity among male children (p=0.05). Only 10% of the children did not practice physical activities. Conclusions: High prevalence of childhood overweight and obesity was found in our study, which signals that there is a need to concentrate on preventive, screening and care actions in this population.