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Open Access Research article

Profound influence of different methods for determination of the ankle brachial index on the prevalence estimate of peripheral arterial disease

Stefan F Lange*, Hans-Joachim Trampisch, David Pittrow, Harald Darius, Matthias Mahn, Jens R Allenberg, Gerhart Tepohl, Roman L Haberl, Curt Diehm and the getABI Study Group

BMC Public Health 2007, 7:147  doi:10.1186/1471-2458-7-147

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Numerator, not nominator is top of a fraction

Ebm Audit   (2012-09-27 11:20)  Private

The ankle brachial index is defined in the abstract by an invalid nomenclature despite being the center piece of the article. It is a fraction of arterial blood pressure values with a value representing the legs (ankle) on the top of the fraction and a value representing the arms (brachial) on the bottom of the fraction. In the English language, the numerator is the top and the denominator the bottom of the fraction. Reference: http://en.wikipedia.org/wiki/Fraction_(mathematics).

A nominator is not a mathematical term. The verb nominate expresses, for example, to propose a person by name as a candidate or to appoint to an office. A nominator may be a person who enters a horse in a race. Reference: http://www.merriam-webster.com/dictionary/nominator.

Competing interests

None

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