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Activity Number: 20
Type: Topic Contributed
Date/Time: Sunday, August 4, 2013 : 2:00 PM to 3:50 PM
Sponsor: Mental Health Statistics Section
Abstract - #307710
Title: Analysis of Longitudinal Data with Attrition and Mortality
Author(s): Ofer Harel*+
Companies: University of Connecticut
Keywords: Incomplete data ; multiple imputation ; Aging ; cognitive functioning
Abstract:

Participants' attrition and deferential mortality within longitudinal studies pose serious problems for obtaining inferences about a population of aging individuals. Attrition and mortality are often highly related to aging-related outcomes. Inferences regarding aging-related changes are better defined as conditional on the probability of surviving and/or remaining in the study. We use two-stage multiple imputation and demonstrate some approaches for dealing with the incomplete data, attrition and mortality on cognitive outcomes in longitudinal studies of aging.


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