A comparative evaluation of six sigma metrics and quality goal index ratio 3 months prior to first lockdown due to COVID-19 pandemic and 3 months during lockdown in a NABL accredited central laboratory

Authors

  • Shirin Sulthana P.K.
  • Raghavendra U.
  • Shaheena Yassir
  • Ganesh Prasad V.
  • Mohammed Ansar

DOI:

https://doi.org/10.51248/.v42i5.2038

Keywords:

Imprecision, inaccuracy, quality goal index, six sigma metrics

Abstract

Introduction and Aim: Sigma represents Standard Deviation (SD) which indicates the degree of variation in a process, where the higher sigma value implies that less likely the laboratory reports false test results. Using a newer parameter called Quality Goal Index (QGI) we can find the reason behind the lower sigma value. Our study aimed to compare the six-sigma metric and QGI ratio 3 months prior to first lockdown due to COVID-19 pandemic and 3 months during the first lockdown.

 

Methodology: A retrospective study was used to compare the six-sigma metric and QGI ratio 3 months prior to first lockdown due to COVID-19 pandemic and 3 months during the first lockdown for the selected ten analytes from 1st of January 2020 to 30th of June 2020 from the clinical biochemistry section of Yenepoya Medical College Hospital, Deralakatte, Mangalore.

 

Results: The sigma metrics from January to March (level 1) indicated that urea, TSH, beta-HCG fell short of meeting Six Sigma quality performance and from April to June, glucose, creatinine, urea and ALT had metrics less than 3 at both the Internal Quality Control levels. QGI ratio indicated that from January to March, the problem was imprecision for urea, TSH and beta-HCG (QGI < 0.8). From April to June, urea and creatinine showed imprecision, glucose and ALT showed inaccuracy, urea and ALT showed both imprecision and inaccuracy.

 

Conclusion: This study highlights the necessity for stringent Internal Quality Control and External Quality Assurance monitoring even during the lockdown period of the pandemic. By implementing six sigma and finding QGI ratio, quality of laboratory services can be improved immensely.

Author Biographies

Shirin Sulthana P.K.

Department of Biochemistry, Yenepoya Medical College and Hospital, Yenepoya Deemed to be University, Deralakatte, Mangalore, 575022, Karnataka, India

Raghavendra U.

Department of Biochemistry, Yenepoya Medical College and Hospital, Yenepoya Deemed to be University, Deralakatte, Mangalore, 575022, Karnataka, India

Shaheena Yassir

Department of Biochemistry, Yenepoya Medical College and Hospital, Yenepoya Deemed to be University, Deralakatte, Mangalore, 575022, Karnataka, India

Ganesh Prasad V.

Department of Biochemistry, Yenepoya Medical College and Hospital, Yenepoya Deemed to be University, Deralakatte, Mangalore, 575022, Karnataka, India

Mohammed Ansar

Quality Assurance Department, Yenepoya Medical College and Hospital, Yenepoya Deemed to be University, Deralakatte, Mangalore, 575022, Karnataka, India

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Published

2022-11-14

How to Cite

1.
Sulthana P.K. S, U. R, Yassir S, Prasad V. G, Ansar M. A comparative evaluation of six sigma metrics and quality goal index ratio 3 months prior to first lockdown due to COVID-19 pandemic and 3 months during lockdown in a NABL accredited central laboratory. Biomedicine [Internet]. 2022 Nov. 14 [cited 2022 Nov. 27];42(5):1051-7. Available from: https://biomedicineonline.org/home/article/view/2038

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