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Activity Number: 198
Type: Contributed
Date/Time: Monday, July 30, 2007 : 2:00 PM to 3:50 PM
Sponsor: Biopharmaceutical Section
Abstract - #308927
Title: Partial FEFI for Incomplete Tables with Covariates
Author(s): Shin-Soo Kang*+ and Kenneth Koehler and Michael D. Larsen
Companies: Iowa State University and Iowa State University and Iowa State University
Address: 3308 Valley View, Ames, IA, 50014,
Keywords: Complete Case Analysis ; Fractional Imputation ; Multiple Imputation ; Wald Statistic
Abstract:

The information of covariates are available to do a partial fully efficient fractional imputation (FEFI). The new method, PFEFI with logistic regression is proposed to construct complete contingency tables. Jackknife method is used to get a standard errors of log-odds ratio from the completed table by the new method. Simulation results, when covariates have more information about categorical variables, reveal that the new method provides more efficient estimates of log-odds ratio than either multiple imputation (MI) based on data augmentation or complete case analysis.

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Revised September, 2007