More on Ear-Canal Hair and the Ear-Lobe Crease as Predictors for Coronary Artery Disease

Stephen L. Blythe, George Monteiro, Richard Wagner, Karen Wagner

Research output: Contribution to journalLetter

1 Scopus citations


To the Editor: The recent letter by Wagner et al. (Nov. 15 issue)* requires comment. When their data for combined ear-lobe crease and ear-canal hair is used, the sensitivity — which is defined as the percentage of afflicted people detected by a test — is 56.25 per cent (18 of 32), not the 90 per cent they cite, which is the predictive value of a positive test in their test population. Their false positive rate is 18 per cent (2 of 11 men without coronary artery disease). The value of this type of test in screening is a function also.

Original languageEnglish (US)
Pages (from-to)582-583
Number of pages2
JournalNew England Journal of Medicine
Issue number9
StatePublished - Feb 28 1985
Externally publishedYes


ASJC Scopus subject areas

  • Medicine(all)

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