Diagnostic Point-Of-Care Tests in Resource-Limited Settings

Lancet Infect Dis. 2014 Mar;14(3):239-49. doi: 10.1016/S1473-3099(13)70250-0. Epub 2013 Dec 10.

Abstract

The aim of diagnostic point-of-care testing is to minimise the time to obtain a test result, thereby allowing clinicians and patients to make a quick clinical decision. Because point-of-care tests are used in resource-limited settings, the benefits need to outweigh the costs. To optimise point-of-care testing in resource-limited settings, diagnostic tests need rigorous assessments focused on relevant clinical outcomes and operational costs, which differ from assessments of conventional diagnostic tests. We reviewed published studies on point-of-care testing in resource-limited settings, and found no clearly defined metric for the clinical usefulness of point-of-care testing. Therefore, we propose a framework for the assessment of point-of-care tests, and suggest and define the term test efficacy to describe the ability of a diagnostic test to support a clinical decision within its operational context. We also propose revised criteria for an ideal diagnostic point-of-care test in resource-limited settings. Through systematic assessments, comparisons between centralised testing and novel point-of-care technologies can be more formalised, and health officials can better establish which point-of-care technologies represent valuable additions to their clinical programmes.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Diagnostic Tests, Routine / economics
  • Diagnostic Tests, Routine / methods*
  • Diagnostic Tests, Routine / standards
  • Health Resources / economics*
  • Humans
  • Point-of-Care Systems / economics*
  • Point-of-Care Systems / standards