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Consideration of covariates and stratification in sample size determination for survival time studies

โœ Scribed by Mari Palta; Saeid B. Amini

Book ID
115961754
Publisher
Elsevier Science
Year
1985
Weight
701 KB
Volume
38
Category
Article
ISSN
0021-9681

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Sample size considerations for the evalu
Sample size considerations for the evaluation of prognostic factors in survival analysis
โœ Claudia Schmoor; Willi Sauerbrei; Martin Schumacher ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 103 KB ๐Ÿ‘ 2 views

When the role of a new prognostic factor is investigated, careful planning of an appropriate study is required. This includes an assessment of the power of the study in terms of sample sizes. An adequate analysis of the independent prognostic e!ect of a new factor has to be adjusted for the existing