The long-term within- and between-laboratory variability for assay of antithrombin, and proteins C and S: Results derived from the external quality assessment program for thrombophilia screening of the ECAT Foundation

Journal of Thrombosis and Haemostasis

Volumn 1, Issue 4, 2003, Pages 748-753

  Meijer, P ^a   Kluft, C ^a   Haverkate, F ^a   De Maat, M P M ^a  

^a TNO   (Netherlands)

Author keywords

Analytical performance; External quality assessment; Hemostasis

Indexed keywords

ANTITHROMBIN III; BLOOD CLOTTING INHIBITOR; PROTEIN C; PROTEIN S;

ARTICLE; HEALTH CARE QUALITY; HUMAN; MASS SCREENING; NON PROFIT ORGANIZATION; OBSERVER VARIATION; REFERENCE VALUE; REPRODUCIBILITY; THROMBOPHILIA; TIME;

ANTITHROMBIN III; BLOOD COAGULATION FACTOR INHIBITORS; FOUNDATIONS; HUMANS; MASS SCREENING; OBSERVER VARIATION; PROTEIN C; PROTEIN S; QUALITY ASSURANCE, HEALTH CARE; REFERENCE VALUES; REPRODUCIBILITY OF RESULTS; THROMBOPHILIA; TIME FACTORS;

EID: 0142228258     PISSN: 15387933     EISSN: 15387836     Source Type: Journal    
DOI: 10.1046/j.1538-7836.2003.00141.x     Document Type: Article

References (22)

1. Rosendaal F. Venous thrombosis: a multicausal disease. Lancet 1999; 353: 1167-73.
2. Egeberg O. Inherited antithrombin deficiency causing thrombophilia. Thromb Diath Haemorrh 1965; 13: 516-30.
3. Griffin JH, Evatt B, Zimmerman TS, Kleiss AJ, Wideman C. Deficiency of protein C in congenital thrombotic disease. J Clin Invest 1981; 68: 1370-3.
4. Bertina RM, Broekmans AW, Van der Linden IK, Mertens K. Protein C deficiency in a Dutch family with thrombotic disease. Thromb Raemost 1982; 48: 1-5.
5. Broekmans AW, Veltkamp JJ, Bertina RM. Congenital protein C deficiency and venous thromboembolism. A study of three Dutch families. N Engl J Med 1983; 309: 340-4.
6. Schwarz HP, Fischer M, Hopmeier P, Batard MA, Griffin JH. Plasma protein S deficiency in familial thrombotic disease. Blood 1984; 64: 1297-300.
7. Comp PC, Nixon RR, Cooper MR, Esmon CT. Familial protein S deficiency is associated with recurrent thrombosis. J Clin Invest 1984; 74: 2082-8.
8. Mannucci PM, Tripodi A, Botasso B, Baudo F, Finazzi G, De Stefano V, Palareti G, Manotti C, Mazzucconi MG, Castaman G. Markers of procoagulant imbalance in patients with inherited thrombohilic syndromes. Thromb Haemost 1992; 67: 200-2.
9. Michiels JJ, Hamulyák K. Laboratory diagnosis of hereditary throm- bophilia. Sent Thromb Haemostas 1998; 24: 309-20.
10. Groth T, De Verdier CH. Transferability of clinical laboratory data. Uppsala J Med Sci 1993; 98: 259-74.
11. Biittner J. Reference materials and reference methods in laboratory medicine: a challenge to international co-operation. Eur J Clin Chem Clin Biochem 1994; 32: 571-7.
12. Gram J, Jespersen J, Declerck P, Kluft C. Proposal for a general strategy of standardization of fibrinolysis assays to be used in clinical practice. Fibrinol Proteolysis 1999; 13(Suppl. 1): 30-5.
13. Jackson CM, White GC, Barrowcliffe T, Esnouf MP, Jespersen J, Kluft C, Lenahan J. A reference system approach to future standardization of laboratory tests for hemostasis. Thromb Haemost 2002; 87: 165-9.
14. Ehrmeyer SS, Laessig RH. Alternative statistical approach to evaluating interlaboratory performance. Clin Chem 1985; 31: 106-8.
15. Fraser CG, Hyltoft Petersen P. Desirable standards for laboratory tests if they are to fulfil medical needs. Clin Chem 1993; 39: 1447-55.
16. Doumas BT. The evaluation and limitations of accuracy and precision standards. Clin Chim Ada 1997; 260: 145-62.
17. Meijer P, De Maat MPM, Kluft C, Haverkate F, Van Houwelingen HC. Assessment of the long-term analytical performance of field methods in haemostasis by evaluation of results of an external quality assessment programme. Clin Chem 2002; 48: 1011-5.
18. Thompson SG, Duckert F, Haverkate F, Thompson JM. The measurement of haemostatic factors in 16 European laboratories. Quality assessment for the multicentre ECAT Angina Pectoris Study. Thromb Haemost 1989; 61: 301-6.
19. Haverkate F, Walker ID, Conkie J. External quality assessment of thrombophilia testing in Europe. Fibrinolysis 1996; 10(Suppl. 2): 169.
20. Preston FE, Kitchen S. Quality control and factor VIII assays. Haemophilia 1998; 4: 651-3.
21. Meijer P, Verbruggen HW, De Weerd B, Den Dool EJ, Van Oerle R. The effect of a common reference plasma on the inter-laboratory variation of the measurement of total and free protein S. Scan J Clin Lab Invest 2002; 62: 149-58.
22. Persson KEM, Hillarp A, Dahlback B. Analytical considerations for free protein S assays in protein S deficiency. Thromb Haemost 2001; 86: 1144-7.