Advancing excellence in laboratory medicine for better healthcare worldwide

Task Force on Global Reference Interval Database (TF-GRID)


Name Position Country Term Time in Office
J. Zierk Chair DE 1st 2021 10 - 2024 12
E. C. Cheung Wong Member US 1st  2021 10 - 2024 12
A. Coskun Member TR 1st 2021 10 - 2024 12
A. B. Leichtle Member CH 1st 2021 10 - 2024 12 
N. Mayanskiy Member RU 1st 2021 10 - 2024 12
P. Ridefelt Member SE 1st 2021 10 - 2024 12
K. Sikaris Member AU 1st  2021 10 - 2024 12
M.K. Bohn Member/Young Scientist CA 1st 2021 10 - 2024 21
R. Müller Corp. Rep. / Abbott DE 1st 2021 10 - 2024 12
J.M. Rhea-McManus Corp. Rep. / Siemens US 1st 2021 10 - 2024 12
T. Streichert SD/C-RIDL liaison DE    


Scope & Mandate

  • Develop an IFCC website highlighting all major national and international reference interval studies/programs in clinical chemistry and hematology.
  • Create a centralized global reference interval database hosted on the IFCC website by collating data from the completed templates. This database would enable users to search for major reference interval studies and view reference interval data. It would also have an interactive component in which the user could input a patient’s test result for comparison to available reference interval data within the database.
  • Create a harmonized tool for global users to upload data and calculate reference intervals using various statistical methods. Create an IFCC mobile app for easy access to the reference interval database.
  • Analyze global reference interval data to (1) create scatterplots of reference values in individuals from regions across the world, (2) assess potential similarities and differences in reference data between countries and/regions, and (3) assess opportunities for reference interval harmonization.


List of Corresponding Members, nominated by National Societies

Name Full and Affiliate Member Societies
E. A. Chaler Confederación Unificada Bioquímica de la Republica Argentina (CUBRA)
P. A. Christensen Denmark -Danish Society of Clinical Biochemistry (DSKB)
E. Kupatadze Laboratory Medicine Association of Georgia (GLMA)
L. Franszon The Icelandic Society for Laboratory Medicine
S. Sharma Association of Clinical Biochemists of India (ACBI)
T. Hotta Japan Society of Clinical Chemistry (JSCC)
R. Vinod Mahato Nepalese Association for Clinical Chemistry (NACC)
E. Y. Arcellana-Nuqui Philippine Council for Quality Assurance in Clinical Laboratories (PCQACL)
S. Ahmed Pakistan Society of Chemical Pathologists
A. A. Al-Farwi Syrian Clinical Laboratory Association (SCLA)


Chair's contacts

Dr. med. Jacob ZIERK
Department of Pediatrics and Adolescent Medicine
University Hospital Erlangen
Loschgestraße 15, 91054 Erlangen, Germany

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