Consecutive Numerical Expressions - AMA Manual of Style

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Consecutive Numerical Expressions 

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: 27 November 2015

When 2 numbers appear consecutively in a sentence, either reword the sentence or spell out 1 of the numbers for clarity.Study participants were provided twenty 5-mL syringes. Avoid: In the cohort of 1500, 690 were men. Better: In the cohort of fifteen hundred, 690 were men. Or: In the cohort, 690 of the 1500 individuals were men. The envelope contained 3 copies of the manuscript and one 3.5-in diskette. However, numerals may be listed consecutively if they refer to items in an array. As always, clarity and common sense should guide usage.The life expectancy of groups 1, 2, and 3

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