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  • 19 Numbers and Percentages x
  • 19.7 Forms of Numbers. x
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Decimals

Stephen J. Lurie and Margaret A. Winker

in AMA Manual of Style: A Guide for Authors and Editors (10th edition)

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.588
Item type: 
section
The decimal form should be used when a fraction is given with an abbreviated unit of measure (eg, 0.5 g, 2.7 mm) to reflect the precision of the measurement (eg, 38.0 kg should not be rounded to 38 kg ... More
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Percentages

Stephen J. Lurie and Margaret A. Winker

in AMA Manual of Style: A Guide for Authors and Editors (10th edition)

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.589
Item type: 
section
The term percent derives from the Latin per centum, meaning by the hundred, or in, to, or for every hundred. The term percent and the symbol % should be used with specific numbers. Percentage is a more ... More
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Reporting Proportions and Percentages

Stephen J. Lurie and Margaret A. Winker

in AMA Manual of Style: A Guide for Authors and Editors (10th edition)

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.590
Item type: 
section
Whenever possible, proportions and percentages should be accompanied by the actual numerator (n) and denominator (d) from which they were derived. The numerator and denominator should be expressed as ... More
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Reporting Rates and Ratios

Stephen J. Lurie and Margaret A. Winker

in AMA Manual of Style: A Guide for Authors and Editors (10th edition)

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.591
Item type: 
section
Use the virgule construction for rates when placed in parentheses (eg, 1/2) but never in running text. A colon is used for ratios (eg, 1:2). Rates should use the decimal format when the denominator is ... More
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Roman Numerals

Stephen J. Lurie and Margaret A. Winker

in AMA Manual of Style: A Guide for Authors and Editors (10th edition)

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.592
Item type: 
section
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 ... More

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