Diagnostics (May 2024)

External Quality Assessment (EQA) for SARS-CoV-2 RNA Point-of-Care Testing in Primary Healthcare Services: Analytical Performance over Seven EQA Cycles

  • Susan J. Matthews,
  • Kelcie Miller,
  • Kelly Andrewartha,
  • Melisa Milic,
  • Deane Byers,
  • Peter Santosa,
  • Alexa Kaufer,
  • Kirsty Smith,
  • Louise M. Causer,
  • Belinda Hengel,
  • Ineka Gow,
  • Tanya Applegate,
  • William D. Rawlinson,
  • Rebecca Guy,
  • Mark Shephard

DOI
https://doi.org/10.3390/diagnostics14111106
Journal volume & issue
Vol. 14, no. 11
p. 1106

Abstract

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In April 2020, the Aboriginal and Torres Strait Islander COVID-19 Point-of-Care (POC) Testing Program was initiated to improve access to rapid molecular-based SARS-CoV-2 detection in First Nations communities. At capacity, the program reached 105 health services across Australia. An external review estimated the program contributed to averting between 23,000 and 122,000 COVID-19 infections within 40 days of the first infection in a remote community, equating to cost savings of between AU$337 million and AU$1.8 billion. Essential to the quality management of this program, a customised External Quality Assessment (EQA) program was developed with the Royal College of Pathologists of Australasia Quality Assurance Programs (RCPAQAP). From July 2020 to May 2022, SARS-CoV-2 EQA participation ranged from 93 to 100%. Overall concordance of valid EQA results was high (98%), with improved performance following the first survey. These results are consistent with those reported by 12 Australian and 4 New Zealand laboratories for three SARS-CoV-2 RNA EQA surveys in March 2020, demonstrating that SARS-CoV-2 RNA POC testing in primary care settings can be performed to an equivalent laboratory analytical standard. More broadly, this study highlights the value of quality management practices in real-world testing environments and the benefits of ongoing EQA program participation.

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