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Quality assessment of diagnostic accuracy

Posted Jan 22 2009 5:14pm

I was taking a moment or two to looked through some of my RSS feeds, and came across this post on the quality of diagnostic accuracy.  QUADAS stands for:

  • Q – Quality
  • A – Assessment of
  • D – Diagnostic
  • A – Accuracy
  • S – Studies

It’s especially developed for people who use physical assessment, and in this post written by physiotherapist Harrison Vaughan, PT, DPT who has a business called In Touch Therapy. I found the post on Mike Reinold’s blog which has a heap of information on physical rehabilitation written for occupational therapists, physiotherapists, exercise physiologists etc.

Back to the QUADAS - it’s always worth asking good questions of any study, and this approach has been developed to evaluate the quality of evidence.  I won’t go through the questions here - but instead refer you to this paper which is freely available on the net.

I hope you take the time to look this up - and see how some of your tests hold up under this sort of scrutiny!

Penny Whiting, Anne WS Rutjes, Johannes B Reitsma, Patrick MM Bossuyt, Jos Kleijnen (2003). The development of QUADAS: a tool for the quality assessment of studies of diagnostic accuracy included in systematic reviews BMC Medical Research Methodology, 3 (1) DOI:10.1186/1471-2288-3-25

While you’re over at Mike’s blog, take a look at some of the other topics.  While they’re mainly about sports-related rehabilitation, there are some good links to journals, and he’s having some guests posting over the next little while.  Don’t forget that you can bookmark my blog, or subscribe using the RSS link above.  I love comments - and do reply! And if there is something you want to see, let me know, and I’ll do my best to find it out.

      
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