References
- Schwartz GJ, Brion LP, Spitzer A. The use of plasma creatinine concentration for estimating glomerular filtration rate in infants, children, and adolescents. Pediatr Clin North Am 1987;34:571–90.
- Finney H, Newman DJ, Thakkar H, Fell JM, Price CP. Reference ranges for plasma cystatin C and creatinine measurements in premature infants, neonates, and older children. Arch Dis Child 2000;82:71–5.
- Randers E, Krue S, Erlandsen EJ, Danielsen H, Hansen LG. Reference interval for serum cystatin C in children. Clin Chem 1999;45:1856–8.
- Helin I, Axenram M, Grubb A. Serum cystatin C as a determinant of glomerular filtration rate in children. Clin Nephrol 1998;49:221–5.
- Bokenkamp A, Domanetzki M, Zinck R, Schumann G, Brodehl J. reference values for cystatin C serum concentrations in children. Pediatr Nephrol 1998;12:125–9.
- Bokenkamp A, Domanetzki M, Zinck R, Schumann G, Byrd D, Brodehl J. Cystatin C – a new marker of glomerular filtration rate in children independent of age and height. Pediatrics 1998;101:875–81.
- Filler G, Witt I, Priem F, Ehrich JH, Jung K. Are cystatin C and beta 2-microglobulin better markers than serum creatinine for prediction of a normal glomerular filtration rate in pediatric subjects? Clin Chem 1997;43:1077–8.
- Abrahamson M, Olafsson I, Palsdottir A, Ulvsback M, Lundwall A, Jensson O, Grubb A. Structure and expression of the human cystatin C gene. Biochem J 1990;268:287–94.
- Tenstad O, Roald AB, Grubb A, Aukland K. Renal handling of radiolabelled human cystatin C in the rat. Scand J Clin Lab Invest 1996;56:409–14.
- Harris EK. Effects of intra- and interindividual variation on the appropriate use of normal ranges. Clin Chem 1974;20:1535–42.
- Fraser CG. Biological variation: from principles to practice. Washington, DC: AACC Press; 2001.
- Bokenkamp A, Ozden N, Dieterich C, Schumann G, Ehrich JH, Brodehl J. Cystatin C and creatinine after successful kidney transplantation in children. Clin Nephrol 1999;52:371–6.
- Podracka L, Feber J, Lepage N, Filler G. Intra-individual variation of cystatin C and creatinine in pediatric solid organ transplant recipients. Pediatr Transplant 2005;9:28–32.
- Sambasivan AS, Lepage N, Filler G. Cystatin C intrapatient variability in children with chronic kidney disease is less than serum creatinine. Clin Chem 2005;51:2215–6.
- Bandaranayake N, nkrah-Tetteh T, Wijeratne S, Swaminathan R. Intra-individual variation in creatinine and cystatin C. Clin Chem Lab Med 2007;45:1237–9.
- Delanaye P, Cavalier E, Depas G, Chapelle JP, Krzesinski JM. New data on the intraindividual variation of cystatin C. Nephron Clin Pract 2008;108:c246–8.
- Le Bricon T, Leblanc I, Benlakehal M, Gay-Bellile C, Erlich D, Boudaoud S. Evaluation of renal function in intensive care: plasma cystatin C vs. creatinine and derived glomerular filtration rate estimates. Clin Chem Lab Med 2005;43:953–7.
- Toffaletti JG, McDonnell EH. Variation of serum creati-nine, cystatin C, and creatinine clearance tests in persons with normal renal function. Clin Chim Acta 2008;395:115–9.
- Erlandsen EJ, Randers E, Kristensen JH. Evaluation of the Dade Behring N Latex Cystatin C assay on the Dade Beh-ring Nephelometer II System. Scand J Clin Lab Invest 1999;59:1–8.
- Brochner-Mortensen J, Haahr J, Christoffersen J. A simple method for accurate assessment of the glomerular filtration rate in children. Scand J Clin Lab Invest 1974;33:140–3.
- Brochner-Mortensen J, Rohbrandt K, Lauritzen RB. Precision of single injection (51Cr)EDTA plasma clearance and endogenous creatinine clearance determinations in children. Scand J Clin Lab Invest 1977;37:625–9.
- Jodal L, Brochner-Mortensen J. Reassessment of a classical single injection 51Cr-EDTA clearance method for determination of renal function in children and adults. Part I: Analytically correct relationship between total and one-pool clearance. Scand J Clin Lab Invest 2009;69:305–13.
- Fraser CG, Harris EK. Generation and application of data on biological variation in clinical chemistry. Crit Rev Clin Lab Sci 1989;27:409–37.
- Brochner-Mortensen J, Hammerich B, Christoffersen J. Assessment of renal function from plasma urea and plasma creatinine in children. Scand J Urol Nephrol 1982;16:229–36.
- Keevil BG, Kilpatrick ES, Nichols SP, Maylor PW. Biological variation of cystatin C: implications for the assessment of glomerular filtration rate. Clin Chem 1998;44:1535–9.
- Filler G, Bokenkamp A, Hofmann W, Le BT, Martinez-Bru C, Grubb A. Cystatin C as a marker of GFR – history, indications, and future research. Clin Biochem 2005;38:1–8.