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African Journal of Laboratory Medicine
versão On-line ISSN 2225-2010
versão impressa ISSN 2225-2002
Afr. J. Lab. Med. vol.12 no.1 Addis Ababa 2023
http://dx.doi.org/10.4102/ajlm.v12i1.1996
CORRECTION
Corrigendum: The application of sigma metrics in the laboratory to assess quality control processes in South Africa
Marli van HeerdenI, II; Jaya A. GeorgeI, II; Siyabonga KhozaI, II
INational Health Laboratory Service, Johannesburg, South Africa
IIFaculty of Health Sciences, Charlotte Maxeke Johannesburg Academic Hospital, University of the Witwatersrand, Johannesburg, South Africa
In the published article, Van Heerden M, George JA, Khoza S. The application of sigma metrics in the laboratory to assess quality control processes in South Africa. Afr J Lab Med. 2022;11(1):a1344. https://doi.org/10.4102/ajlm.v11i1.1344, there was an error. The incorrect Sigma metric calculation was stated.
The correction has now been made on page 2 in the Methods section, under Data collection and analysis, paragraph 4 and should read:
The original paragraph:
Sigma metrics were calculated for each analyte on two levels as follows:
The revised and updated paragraph:
Sigma metrics were calculated for each analyte on two levels as follows:
The authors apologise for this error. The correction does not change the study's findings of significance or overall interpretation of the study's results or the scientific conclusions of the article in any way.
Correspondence:
Marli van Heerden
marli.vanheerden@nhls.ac.za
Published: 15 May 2023
Note: DOI of original article published: https://doi.org/10.4102/ajlm.v11i1.1344