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  • 20 Study Design and Statistics x
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Abstract and Introduction  

Margaret A. Winker and Stephen J. Lurie

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

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.594
Item type: 
section
UPDATE: We will discontinue using quotation marks to identify parts of an article, but retain the capitalization; eg, This is discussed in the Methods section (not the “Methods” section). This change ... More
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Methods  

Margaret A. Winker and Stephen J. Lurie

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

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.595
Item type: 
section
UPDATE: We will discontinue using quotation marks to identify parts of an article, but retain the capitalization; eg, This is discussed in the Methods section (not the “Methods” section). This change ... More
This content has an associated quiz

Results  

Margaret A. Winker and Stephen J. Lurie

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

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.596
Item type: 
section
UPDATE: We will discontinue using quotation marks to identify parts of an article, but retain the capitalization; eg, This is discussed in the Methods section (not the “Methods” section). This change ... More
This content has an associated quiz

Discussion (Comment)  

Margaret A. Winker and Stephen J. Lurie

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

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.597
Item type: 
section
Whether the hypothesis was supported or refuted by the results should be addressed. The study result should be placed in context of published literature. The limitations of the study should be discussed, ... More

Parallel-Design Double-blind Trials  

AMA Manual of Style Committee

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

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.599
Item type: 
section
In this study design, participants are assigned to only 1 treatment group of the study. These trials are generally designed to assess whether 1 or more treatments are superior to the others. Participants ... More

Crossover Trials  

Margaret A. Winker and Stephen J. Lurie

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

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.600
Item type: 
section
In a crossover trial, participants receive more than 1 of the treatments under investigation, usually in a randomly determined sequence, and with a prespecified amount of time (a ) between sequential ... More

Equivalence and Noninferiority Trials  

Margaret A. Winker and Stephen J. Lurie

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

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.601
Item type: 
section
It is sometimes desirable to compare a less expensive treatment or intervention against a treatment or intervention that is already known to be effective. In these cases, it would be unethical to expose ... More

Cohort Studies  

Margaret A. Winker and Stephen J. Lurie

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

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.603
Item type: 
section
A prospective cohort study follows a group or of individuals who are initially free of the outcome of interest. Individuals in a cohort generally share some underlying characteristic, such as age, sex, ... More

Case-Control Studies  

Margaret A. Winker and Stephen J. Lurie

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

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.604
Item type: 
section
Case-control studies, which are always retrospective, compare those who have had an outcome or event () with those who have not (). Cases and controls are then evaluated for exposure to various and thus ... More

Case Series  

Margaret A. Winker and Stephen J. Lurie

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

Print Publication Year: 
2007
Published Online: 
2009
DOI: 
10.1093/jama/9780195176339.022.605
Item type: 
section
A case series describes characteristics of a group of patients with a particular disease or patients who have undergone a particular procedure. A case series may also involve observation of larger units ... More

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