title: Age-dependent serum sulfate levels in children and adolescents.
abstract: We measured inorganic sulfate in 100 microliters of deproteinized serum by microassay, using the 133Ba precipitation method. Infants and children under 3 yr (n = 46), children from 3 to 9 yr of age (n = 27) and adolescents (10-18 yr, n = 12) in a hospitalized population, and healthy adults (n = 10), were studied. An age-dependent curvilinear regression for serum sulfate characterizes the first group: the mean serum sulfate value falls from 0.47 mmol/l on the first day of life to 0.33 mmol/l at 36 months. Thereafter the mean value is about 0.33 mmol/l. The 95% confidence intervals were defined for each group.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007676:Kidney Failure, Chronic / Q000097:blood*; D008297:Male; D013431:Sulfates / Q000097:blood*
chemical_list: D013431:Sulfates