Secondary analysis of clinical trials--a cautionary note.

Abstract:

:There is concern in published reports and reviews that patients are being harmed or denied effective treatment by the use of questionable results from secondary analyses of data from clinical trials. A well-reported secondary analysis must make clear to the reader the uncertainty of the result--so clear, in fact, that it should be an obvious part of the conclusions that implementation should await confirmation as the primary outcome in an adequately powered trial. Those who write, review and publish these reports have a responsibility to ensure that reports accurately describe the sources of uncertainty, explain complex methods and their weaknesses with clarity, and convince readers to require better evidence before changing their practice.

journal_name

Prog Cardiovasc Dis

authors

Marler JR

doi

10.1016/j.pcad.2011.09.006

subject

Has Abstract

pub_date

2012-01-01 00:00:00

pages

335-7

issue

4

eissn

0033-0620

issn

1873-1740

pii

S0033-0620(11)00180-0

journal_volume

54

pub_type

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