Abstract
Abstract Missing data is a common complication in data analysis. In many medical settings missing data can cause difficulties in estimation, precision and inference. Multiple imputation (MI) ( Multiple Imputation for Nonresponse in Surveys . Wiley: New York, 1987) is a simulation‐based approach to deal with incomplete data. Although there are many different methods to deal with incomplete data, MI has become one of the leading methods. Since the late 1980s we observed a constant increase in the use and publication of MI‐related research. This tutorial does not attempt to cover all the material concerning MI, but rather provides an overview and combines together the theory behind MI, the implementation of MI, and discusses increasing possibilities of the use of MI using commercial and free software. We illustrate some of the major points using an example from an Alzheimer disease (AD) study. In this AD study, while clinical data are available for all subjects, postmortem data are only available for the subset of those who died and underwent an autopsy. Analysis of incomplete data requires making unverifiable assumptions. These assumptions are discussed in detail in the text. Relevant S‐Plus code is provided. Copyright © 2007 John Wiley & Sons, Ltd.
Keywords
Imputation (statistics)Computer scienceMissing dataInferenceSoftwareData miningData scienceArtificial intelligenceMachine learning
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Publication Info
- Year
- 2007
- Type
- article
- Volume
- 26
- Issue
- 16
- Pages
- 3057-3077
- Citations
- 418
- Access
- Closed
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Cite This
Ofer Harel,
Xiao‐Hua Zhou
(2007).
Multiple imputation: review of theory, implementation and software.
Statistics in Medicine
, 26
(16)
, 3057-3077.
https://doi.org/10.1002/sim.2787
Identifiers
- DOI
- 10.1002/sim.2787