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Cited by 485

The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.

Multiple imputation of covariates by fully conditional specification: Accommodating the substantive model

Open access
Bartlett, Jonathan W, Seaman, Shaun R, White, Ian R, Carpenter, James R, for the Alzheimer's Disease Neuroimaging Initiative*·2015·Statistical Methods in Medical Research

Abstract

Missing covariate data commonly occur in epidemiological and clinical research, and are often dealt with using multiple imputation. Imputation of partially observed covariates is complicated if the substantive model is non-linear (e.g. Cox proportional hazards model), or contains non-linear (e.g. squared) or interaction terms, and standard software implementations of multiple imputation may impute covariates from models that are incompatible with such substantive models. We show how imputation by fully conditional specification, a popular approach for performing multiple imputation, can be modified so that covariates are imputed from models which are compatible with the substantive model. We investigate through simulation the performance of this proposal, and compare it with existing approaches. Simulation results suggest our proposal gives consistent estimates for a range of common substantive models, including models which contain non-linear covariate effects or interactions, provided data are missing at random and the assumed imputation models are correctly specified and mutually compatible. Stata software implementing the approach is freely available.

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Metadata

Authors
Bartlett, J. W., Seaman, S. R., White, I. R., Carpenter, J. R., & Initiative*, F. T. A. D. N.
Venue
Statistical Methods in Medical Research
Published
2014-02-12
Volume
24
Issue
4
Pages
462-487
ISSN
  • 0962-2802 (ISSN-L)
  • 1477-0334
OpenAlex
W2157235443
Cited by
485
References
7
FWCI
22.34
Type
journal article
Language
en
Open access
hybrid

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