scholarly journals Sample size calculation for studies with grouped survival data

2018 ◽  
Vol 37 (27) ◽  
pp. 3904-3917
Author(s):  
Zhiguo Li ◽  
Xiaofei Wang ◽  
Yuan Wu ◽  
Kouros Owzar
Keyword(s):  
Sample Size ◽  
Survival Data ◽  
Sample Size Calculation

Sample Size Calculation for Survival Data

2012 ◽  
pp. 1200-1205
Author(s):  
Qi Jiang ◽  
Steven Snapinn ◽  
Boris Iglewicz
Keyword(s):  
Sample Size ◽  
Survival Data ◽  
Sample Size Calculation

Sample Size Calculation for Survival Data

2003 ◽  
pp. 892-898 ◽  
Author(s):  
Qi Jiang ◽  
Steven Snapinn ◽  
Boris lglewicz
Keyword(s):  
Sample Size ◽  
Survival Data ◽  
Sample Size Calculation

Sample Size Calculation for Survival Data

2010 ◽  
pp. 1200-1205
Author(s):  
Qi Jiang ◽  
Steven Snapinn ◽  
Boris Iglewicz
Keyword(s):  
Sample Size ◽  
Survival Data ◽  
Sample Size Calculation

The most frequently asked question to a statistician: The sample size

2017 ◽  
Vol 23 (5) ◽  
pp. 644-646 ◽  
Author(s):  
Maria Pia Sormani
Keyword(s):  
Clinical Study ◽  
Sample Size ◽  
Study Design ◽  
Treatment Effect ◽  
Sample Size Calculation ◽  
Ethical Implications ◽  
Number Of Patients ◽  
Reducing Costs ◽  
Correct Size

The calculation of the sample size needed for a clinical study is the challenge most frequently put to statisticians, and it is one of the most relevant issues in the study design. The correct size of the study sample optimizes the number of patients needed to get the result, that is, to detect the minimum treatment effect that is clinically relevant. Minimizing the sample size of a study has the advantage of reducing costs, enhancing feasibility, and also has ethical implications. In this brief report, I will explore the main concepts on which the sample size calculation is based.

Sample size calculation for clinical trials in which entry criteria and outcomes are counts of events

1994 ◽  
Vol 13 (8) ◽  
pp. 859-870 ◽  
Author(s):  
Robert P. McMahon ◽  
Michael Proschan ◽  
Nancy L. Geller ◽  
Peter H. Stone ◽  
George Sopko
Keyword(s):  
Clinical Trials ◽  
Sample Size ◽  
Sample Size Calculation
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