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Comparisons against baseline within randomised groups are often used and can be highly misleading

Overview of attention for article published in Trials, December 2011
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Title
Comparisons against baseline within randomised groups are often used and can be highly misleading
Published in
Trials, December 2011
DOI 10.1186/1745-6215-12-264
Pubmed ID
Authors

J Martin Bland, Douglas G Altman

Abstract

In randomised trials, rather than comparing randomised groups directly some researchers carry out a significance test comparing a baseline with a final measurement separately in each group.

X Demographics

X Demographics

The data shown below were collected from the profiles of 91 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 372 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 3 <1%
France 2 <1%
Australia 2 <1%
Malaysia 1 <1%
India 1 <1%
Brazil 1 <1%
Spain 1 <1%
United Kingdom 1 <1%
Unknown 360 97%

Demographic breakdown

Readers by professional status Count As %
Researcher 68 18%
Student > Ph. D. Student 65 17%
Student > Master 42 11%
Other 27 7%
Student > Postgraduate 26 7%
Other 90 24%
Unknown 54 15%
Readers by discipline Count As %
Medicine and Dentistry 101 27%
Nursing and Health Professions 36 10%
Psychology 28 8%
Agricultural and Biological Sciences 21 6%
Sports and Recreations 18 5%
Other 85 23%
Unknown 83 22%