Investigating causes of heterogeneity in systematic reviews.
What causes heterogeneity in systematic reviews of controlled trials? First, it may be an artefact of the summary measures used, of study design features such as duration of follow-up or the reliability of outcome measures. Second, it may be due to real variation in the treatment effect and hence pr...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2002
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