Talk:Levine's sign

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http://www.med.uiuc.edu/m1/ihd/qafrost0405.htm mentions the history of the sign, but I could find nothing more on the good Dr Levine. JFW | T@lk 21:47, 17 May 2005 (UTC)

[edit] Sensitivity v Specificity

The article states:

The sign has a sensitivity of 80% for myocardial infarction (MI), i.e. in patients with cardiac pain and a heart attack, Levine's sign was positive in 80%; however, it is not very specific, as the absence of the sign in patients with cardiac pain would falsely miss 51% (Edmonstone 1995).

To clarify, specificity means the degree to which the presence of the sign confirms the presence of the disease. If the sign is absent when the disease is present, it lessens the sensitivity, not the specificity. This paragraph contradicts itself (or is written in a confusing way). MoodyGroove 06:03, 5 February 2007 (UTC)MoodyGroove

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