Roman Numerals - AMA Manual of Style

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Roman Numerals 

Numbers and Percentages

Stephen J. Lurie

and Margaret A. Winker

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PRINTED FROM AMA MANUAL OF STYLE ONLINE ( © American Medical Association, 2009. All Rights Reserved. Under the terms of the license agreement, an individual user may print out a PDF of a single chapter of a title in AMA Manual of Style Online for personal use (for details see Privacy Policy). date: 24 November 2015

Use roman numerals with proper names (eg, Henry Ford III). Note that no comma is used before the numeral. However, arabic numerals should be used as designators in all other cases (eg, round 2, Table , year 5; see also , Capitalization, Designators) unless roman numerals are part of formally established nomenclature (see , Nomenclature). Use roman numerals for cancer stages and arabic numerals for cancer grades (see also , Nomenclature, Cancer). In pedigree charts, use roman numerals to indicate generations and arabic numerals to indicate families or individual family members (see also Pedigrees in , Visual Presentation of Data,

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