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Sample size calculation for planning group sequential longitudinal trials
Author(s) -
Liu Aiyi,
Boyett James M.,
Xiong Xiaoping
Publication year - 2000
Publication title -
statistics in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.996
H-Index - 183
eISSN - 1097-0258
pISSN - 0277-6715
DOI - 10.1002/(sici)1097-0258(20000130)19:2<205::aid-sim295>3.0.co;2-7
Subject(s) - sample size determination , group (periodic table) , sample (material) , statistics , computer science , longitudinal data , econometrics , mathematics , data mining , physics , thermodynamics , quantum mechanics
Procedures are developed in this paper for sample size calculations for planning a group sequential longitudinal trial with various correlation structures, using a test statistic based on generalized estimating equations (Lee, Kim and Tsiatis) and group sequential boundaries based on type I error spending functions (Lan and DeMets). Copyright © 2000 John Wiley & Sons, Ltd.