Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Friederike M-S Barthel"'
Autor:
Ella Marley-Zagar, Ian R. White, Patrick Royston, Friederike M.-S. Barthel, Mahesh K. B. Parmar, Abdel G. Babiker
Publikováno v:
The Stata Journal: Promoting communications on statistics and Stata. 23:24-52
We describe the command artbin, which offers various new facilities for the calculation of sample size for binary outcome variables that are not otherwise available in Stata. While artbin has been available since 2004, it has not been previously desc
Autor:
Junjing Lin, Junshan Qiu, Margaret Gamalo-Siebers, Freda Cooner, Yodit Seifu, Shiling Ruan, Friederike M.-S. Barthel, Rosalind Walley
Publikováno v:
Therapeutic innovationregulatory science. 54(6)
The US Food and Drug Administration (FDA) has shown scientific discretion in interpreting the substantial evidence requirement for the approval of new drugs with its considerations on the use of single controlled or uncontrolled trials (Federal Food,
Publikováno v:
Statistics in medicine. 38(14)
Publikováno v:
The Stata Journal: Promoting communications on statistics and Stata. 5:123-129
Royston and Babiker (2002) presented a menu-driven Stata program for the calculation of sample size or power for complex clinical trial designs under a survival time or binary outcome. In the present article, the package is updated to Stata 8 under t
Publikováno v:
Eating behaviors. 12(3)
Whilst neuropsychological testing provides the most accurate profile of cognitive functioning, the time consuming nature of individual assessment deems it impossible for many research and clinical settings. This paper presents the development and val
Publikováno v:
Statistics in medicine. 25(15)
We present a general framework for sample size calculation in survival studies based on comparing two or more survival distributions using any one of a class of tests including the logrank test. Incorporated within this framework are the possible pre
Autor:
Friederike M-S Barthel
Publikováno v:
Statistical Methods in Medical Research. 17:665-665