[Evaluation of microalbuminuria in children].

Microalbuminuria has been shown to be important for the diagnosis and prognosis of glomerular nephropathy. A few studies in normal healthy children were performed. The concentration of albumin was determined in 171 samples of the first morning urine by an immunoturbidimetric method. Microalbumin/creatinine ratio values were 4.07 +/- 0.11 mg/mmol, 1.16 +/- 0.10 mg/mmol and 0.88 +/- 0.11 mg/mmol in children of ages 4 days-1 year, 1-7 years and 7-15 years, respectively. We found a negative inverse correlation (r = 0.31; p < 0.05) between age and microalbumin/creatinine ratio.