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Sensitivity and specificity (view source)
Revision as of 14:12, 15 September 2017
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''' | '''Sensitivity''' and '''specificity''' are a recurring theme in medicine and pathology. | ||
==Definitions== | |||
===Sensitivity=== | |||
<math>Sensitivity = TP/(TP+FN)</math> | <math>Sensitivity = TP/(TP+FN)</math> | ||
===Specificity=== | |||
<math>Specificity = TN/(TN+FP)</math> | <math>Specificity = TN/(TN+FP)</math> | ||
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*TN = true negative. | *TN = true negative. | ||
*FP = false positive. | *FP = false positive. | ||
Memory device:<ref>URL: [http://ktclearinghouse.ca/cebm/glossary/specsen http://ktclearinghouse.ca/cebm/glossary/specsen]. Accessed on: 4 May 2011.</ref> | |||
*"SpPins and SnNouts" = '''sp'''ecific '''p'''ositive test rules '''in''', '''s'''e'''n'''sitive '''n'''egative test rules '''out'''. | |||
==See also== | ==See also== | ||
*[[Basics]]. | *[[Basics]]. | ||
*[[Positive predictive value]]. | |||
*[[Negative predictive value]]. | |||
==References== | |||
{{Reflist|1}} | |||
==External links== | ==External links== | ||