JSM 2005 - Toronto

Abstract #304617

This is the preliminary program for the 2005 Joint Statistical Meetings in Minneapolis, Minnesota. Currently included in this program is the "technical" program, schedule of invited, topic contributed, regular contributed and poster sessions; Continuing Education courses (August 7-10, 2005); and Committee and Business Meetings. This on-line program will be updated frequently to reflect the most current revisions.

To View the Program:
You may choose to view all activities of the program or just parts of it at any one time. All activities are arranged by date and time.



The views expressed here are those of the individual authors
and not necessarily those of the ASA or its board, officers, or staff.

The Program has labeled the meeting rooms with "letters" preceding the name of the room, designating in which facility the room is located:

Minneapolis Convention Center = “MCC” Hilton Minneapolis Hotel = “H” Hyatt Regency Minneapolis = “HY”

Back to main JSM 2005 Program page
Legend: = Applied Session, = Theme Session, = Presenter
Activity Number: 138
Type: Contributed
Date/Time: Monday, August 8, 2005 : 10:30 AM to 12:20 PM
Sponsor: Biopharmaceutical Section
Abstract - #304617
Title: How Does Stratified Randomization Affect the Balance of a Clinical Trial?
Author(s): Xiaohui Luo*+ and Matilde Sanchez
Companies: Merck & Co., Inc. and Merck & Co., Inc.
Address: 181 Buttonwood Dr, Piscataway, NJ, 08854-6513, United States
Keywords: Imbalance ; Markov chain ; Minimization ; Incomplete permuted block ; Post-randomization ; Simple randomization
Abstract:

Used properly, stratification can assure the balance of a clinical trial, improve the power of the hypothesis tests, and provide more accurate estimates. But as more factors are involved, the gain in power diminishes. This paper demonstrates how stratification affects the balance of clinical trials and promotes the use of stratification with only important factors and minimal permuted block size.

  • The address information is for the authors that have a + after their name.
  • Authors who are presenting talks have a * after their name.

Back to the full JSM 2005 program

JSM 2005 For information, contact jsm@amstat.org or phone (888) 231-3473. If you have questions about the Continuing Education program, please contact the Education Department.
Revised March 2005