In Ratios - AMA Manual of Style

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In Ratios 


Cheryl Iverson

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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: 27 November 2015

Although a forward slash may be used to express a ratio (eg, the male/female [M/F] ratio was 2/1), JAMA and the Archives Journals recommend use of a colon to express ratios involving numbers or abbreviations (the Apo B:Apo A-I ratio was 2:1) and the word to to express ratios involving words (the male to female ratio). (See , Colon, Numbers.)

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