Abstract
ObjectivesCystatin-C is considered a more sensitive and specific marker of kidney function than creatinine since it can diagnose patients with earlier-stage of renal dysfunction. The aim of this study is to determine the levels of Cystatin-C in healthy children and adolescents as well as any correlations to age, gender, body-mass index (BMI) and blood pressure (BP). Design and methodsCystatin-C was measured in 536 healthy Greek children and adolescents (295 males and 241 females) using a nephelometric immunoassay. Additionally, the age, body mass index and blood pressure was recorded for each subject. ResultsOverall, the mean serum Cystatin-C level was 0.79±0.10mg/L. Cystatin-C was found to be statistically significantly lower in females than in males (p<0.001) as well as in prepubertal children compared to adolescents (p<0.001). Higher values of Cystatin-C were observed in subjects with increased BMI (p<0.001). Neither systolic nor diastolic blood pressure was found to significantly affect Cystatin-C levels. ConclusionsThe levels of Cystatin-C were statistically significantly higher in males, compared to age-matched females and also positively correlated with age and BMI.
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