Difference between revisions of "Sensitivity and specificity"
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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> | ||
| Line 10: | Line 13: | ||
*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== | ||
Latest revision as of 14:12, 15 September 2017
Sensitivity and specificity are a recurring theme in medicine and pathology.
Definitions
Sensitivity
Specificity
Notes:
- TP = true positive.
- FN = false negative.
- TN = true negative.
- FP = false positive.
Memory device:[1]
- "SpPins and SnNouts" = specific positive test rules in, sensitive negative test rules out.
See also
References
- ↑ URL: http://ktclearinghouse.ca/cebm/glossary/specsen. Accessed on: 4 May 2011.