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Specific guide to this web site for:
1. Medical
School
Educators
in
Statistics
2. Medical Students
3. Science media writers
4. High School & College
Statistic Teachers
Misadventures:
1. Harvard led MI study
2. JACC
study
(J. of Amer. Coll.
Cardio.)
3. NEJM
cath study
4. Amer. J. of Cardio.
review of literature
5. ALLHAT
controversy
6. Oat bran study
7. Pregnancy & Alcohol
8. Are Geminis
really
different?
9. Columbia 'Miracle' Study
Additional
Topics:
Celebrex
Limitations of Meta-Analyses
Large Randomized Clinical
Trials
Tale of Two Large
Trials
Advocate
meta-analyses
Network
meta-analyses
| |
Limitations
of Meta-Analyses (details)
A meta-analysis is subject to potential problems and pitfalls just as a clinical
trial is subject to potential limitations. Despite the perception by some
that a meta-analysis is always the final word on a topic, a meta-analysis can
result in incorrect or incomplete conclusions.
The
Very Large Randomized Clinical Trial: Strengths and Weaknesses (details)
A very large randomized clinical trial is the gold standard for assessing the
benefits of a medical treatment. Though large randomized trials have many
strengths, this is not an inherent guarantee that a trial is constructed well or
reaches appropriate conclusions.
A Tale of Two Large Trials (details)
The Heart Protection Study (HPS) is a superbly designed and interpreted large
randomized clinical trial in contrast to the ALLHAT trial which is a large
randomized trial which reached conclusions not proven by the trial data.
Beware of Meta-analyses Bearing False Gifts (details)
Meta-analyses performed by strong advocates of a particular position in an
ongoing controversy are particularly at risk for bias.
Network
meta-analyses (details) Network
meta-analyses are more prone to unreliable conclusions.
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