Erratum: Confidence intervals and power calculations for within-person biological variation: Effect of analytical imprecision, number of replicates, number of samples, and number of individuals (Clinical Chemistry (2012) 58, (1306-1313) DOI: 10.1373/clinchem.2012.187781);Confidence intervals and power calculations for within-person biological variation: Effect of analytical imprecision, number of replicates, number of samples, and number of individuals

Clinical Chemistry

Volumn 58, Issue 9, 2012, Pages 1306-1313

  Røraas, Thomas ^a   Petersen, Per H ^a   Sandberg, Sverre ^b,c  

^a Haraldsplass Hospital   (Norway)

^b UNIVERSITY OF BERGEN   (Norway)

^c HAUKELAND UNIVERSITY HOSPITAL   (Norway)

Author keywords

[No Author keywords available]

Indexed keywords

ACCURACY; ARTICLE; CALCULATION; CONFIDENCE INTERVAL; RELIABILITY; SAMPLE SIZE; VARIANCE;

EID: 84865714284     PISSN: 00099147     EISSN: 15308561     Source Type: Journal    
DOI: 10.1373/clinchem.2012.196022     Document Type: Erratum

References (18)

1. Fraser CG. Biological variation: from principles to practice. 6th ed. Washington: AACC Press; 2001.
2. Braga F, Dolci A, Mosca A, Panteghini M. Biological variability of glycated hemoglobin. Clin Chim Acta 2010;411:1606 -10.
3. Sölétormos G, Semjonow A, Sibley PEC, Lamerz R, Petersen PH, Albrecht W, et al. Biological variation of total prostate-specific antigen: a survey of published estimates and consequences for clinical practice. Clin Chem 2005; 51:1342-51.
4. Wu AHB, Lu QA, Todd J, Moecks J, Wians F. Short- and long-term biological variation in cardiac troponin I measured with a high-sensitivity assay: implications for clinical practice. Clin Chem 2009;55:52- 8.
5. Vasile VC, Saenger AK, Kroning JM, Jaffe AS. Biological and analytical variability of a novel high-sensitivity cardiac troponin T assay. Clin Chem 2010;56:1086 -90.
6. Harris EK. On P values and confidence intervals (why can't we P with more confidence?). Clin Chem 1993;39:927- 8.
7. Henderson AR. Chemistry with confidence: should Clinical Chemistry require confidence intervals for analytical and other data? Clin Chem 1993;39: 929-35.
8. AACC, Clinical Chemistry. Information for authors. http://www.clinchem. org/site/info-ar/info- authors.xhtml (Accessed February 2012).
9. Fraser CG, Harris EK. Generation and application of data on biological variation in clinical chemistry. Crit Rev Clin Lab Sci 1989;27:409 -37.
10. Sokal R, Rohlf J. Biometry: the principles and practices of statistics in biological research. 3rd ed. New York: W. H. Freeman and Company; 1994.
11. Burdick R, Borror C, Montgomery D. Design and analysis of gauge R&R studies: making decisions with confidence intervals in random and mixed ANOVA models (ASA-SIAM series on statistics and applied probability). Philadelphia: Society for Industrial Applied Mathematics; Alexandria (VA): American Statistical Association; 2005.
12. Ricós C, Alvarez V, Cava F, García-Lario JV, Hernández A, Jiménez CV, et al. Current databases on biological variation: pros, cons and progress. Scand J Clin Lab Invest 1999;59:491-500.
13. Westgard QC. Desirable biological variation database specifications. http://www.westgard.com/ biodatabase1.html (Accessed January 2012).
14. Carlsen S, Petersen PH, Skeie S, Skadberg O, Sandberg S. Within-subject biological variation of glucose and HbA(1c) in healthy persons and in type 1 diabetes patients. Clin Chem Lab Med 2011;49:1501-7.
15. Sølvik UØ, Petersen PH, Monsen G, Stavelin AV, Sandberg S. Discrepancies in international normalized ratio results between instruments: a model to split the variation into subcomponents. Clin Chem 2010;56:1618 -26.
16. Burdick RK, Graybill F. Confidence intervals on variance components. New York: Marcel Dekker; 1992.
17. Costongs GM, Bas BM, Janson PC, Hermans J, Brombacher PJ, van Wersch JW. Short-term and long-term intra-individual variations and critical differences of coagulation parameters. J Clin Chem Clin Biochem 1985;23:405-10.
18. Harris EK, Yasaka T. On the calculation of a "reference change" for comparing two consecutive measurements. Clin Chem 1983;29:25-30.