About the Author(s)



Marli van Heerden   
National Health Laboratory Service, Johannesburg, South Africa
Faculty of Health Sciences, Charlotte Maxeke Johannesburg Academic Hospital, University of the Witwatersrand, Johannesburg, South Africa


Jaya A. George  
National Health Laboratory Service, Johannesburg, South Africa
Faculty of Health Sciences, Charlotte Maxeke Johannesburg Academic Hospital, University of the Witwatersrand, Johannesburg, South Africa


Siyabonga Khoza  
National Health Laboratory Service, Johannesburg, South Africa
Faculty of Health Sciences, Charlotte Maxeke Johannesburg Academic Hospital, University of the Witwatersrand, Johannesburg, South Africa


Citation

 Van Heerden M, George JA, Khoza S. Corrigendum: The application of sigma metrics in the laboratory to assess quality control processes in South Africa. Afr J Lab Med. 2023;12(1), a1996. https://doi.org/10.4102/ajlm.v12i1.1996

Note: DOI of original article published: https://doi.org/10.4102/ajlm.v11i1.1344






                          
                               
                                    
                                            
                                                    

	
	

Correction



	

Corrigendum: The application of sigma metrics in the laboratory to assess quality control processes in South Africa


	 Marli van Heerden, Jaya A. George, Siyabonga Khoza
Published: 15 May 2023


Copyright: © 2023. The Author(s). Licensee: AOSIS.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution,
and reproduction in any medium, provided the original work is properly cited.



	








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.