Factors affecting sensitivity and specificity of a diagnostic test: the exercise thallium scintigram☆
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2013, Journal of Clinical EpidemiologyCitation Excerpt :The direction of the association varied, with sensitivity more commonly affected than specificity. Fourteen studies reported an association between the factors investigated and sensitivity [14,16,19,20,22–31], 10 studies reported associations with specificity [14,16,22,23,25,27–29,32,33], and 4 studies reported an association with overall accuracy [30,34–36]. Eight studies (six DTA studies and two reviews) found no evidence of an association between the features investigated and estimates of accuracy [37–44].
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2009, Journal of the American Society of EchocardiographyCitation Excerpt :Because the authors never reported the nonblinding of test analysis, we therefore assumed that studies used blinded analysis only when it was reported as such. In contradiction to reports on exercise thallium scintigraphy,4 blind reading of coronary angiograms did not affect the sensitivity of DSE. Again, the validity of our conclusion that blinding does not affect the sensitivity of DSE significantly rests on this assumption.
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Dr. Janosi is a National Institutes of Health Research Fellow in Cardiology from The Hungarian Institute of Cardiology, Budapest, Hungary.