High tracking of apolipoprotein B levels from the prepubertal age to adolescence in Spanish children

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To assess tracking of lipid and apolipoproteins from the prepubertal age (baseline, 6–8 years old) to adolescence (follow-up, 13–16 years old) in Spanish children.


The sample population included 385 healthy children (179 boys and 206 girls). Tracking was estimated by correlations between baseline and follow-up levels, multiple regression models in which the follow-up lipid was the dependent variable and analysing the percentage of individuals who remained in the same lipid levels status from prepubertal age to adolescence.


Correlations between baseline and follow-up levels for low density lipoprotein (LDL)-cholesterol and apolipoprotein B (apo B) were stronger in boys and for high density lipoprotein-cholesterol and apo A-I stronger in girls. Regression analyses showed that, after adjusting by body mass index (BMI), baseline LDL-cholesterol and apo B levels explain 23% and 39% of the variation of follow-up LDL-cholesterol and apo B levels, respectively, in boys and 13% and 22%, respectively, in girls. The strength of tracking for LDL-cholesterol and apo B was 79% and 89%, respectively, in boys and 72% and 82%, respectively, in girls.


Apolipoprotein B showed the strongest tracking in both sexes, stronger than for LDL-cholesterol, which supports the importance of determining apo B levels as a marker of dyslipidaemia in children.

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