CORRECTION

 

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

 

 

Marli van Heerden^{I, II}; Jaya A. George^{I, II}; Siyabonga Khoza^{I, II}

^INational Health Laboratory Service, Johannesburg, South Africa
^IIFaculty of Health Sciences, Charlotte Maxeke Johannesburg Academic Hospital, University of the Witwatersrand, Johannesburg, South Africa

Correspondence

 

 

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