Review
doi: 10.1136/bmj.323.7321.1123.
Statistics notes: Analysing controlled trials with baseline and follow up measurements
Affiliations
- PMID: 11701584
- PMCID: PMC1121605
- DOI: 10.1136/bmj.323.7321.1123
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Review
Statistics notes: Analysing controlled trials with baseline and follow up measurements
BMJ.
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No abstract available
Figures
Pretreatment and post-treatment scores in each group showing fitted lines. Squares show mean values for the two groups. The estimated difference between the groups from analysis of covariance is the vertical distance between the two lines
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