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A comparison of multiple imputation methods for missing data in longitudinal studies

Open access
Huque, Md Hamidul, Carlin, John B., Simpson, Julie A., Lee, Katherine J.·2018·BMC Medical Research Methodology

Abstract

BACKGROUND: Multiple imputation (MI) is now widely used to handle missing data in longitudinal studies. Several MI techniques have been proposed to impute incomplete longitudinal covariates, including standard fully conditional specification (FCS-Standard) and joint multivariate normal imputation (JM-MVN), which treat repeated measurements as distinct variables, and various extensions based on generalized linear mixed models. Although these MI approaches have been implemented in various software packages, there has not been a comprehensive evaluation of the relative performance of these methods in the context of longitudinal data. METHOD: Using both empirical data and a simulation study based on data from the six waves of the Longitudinal Study of Australian Children (N = 4661), we investigated the performance of a wide range of MI methods available in standard software packages for investigating the association between child body mass index (BMI) and quality of life using both a linear regression and a linear mixed-effects model. RESULTS: In this paper, we have identified and compared 12 different MI methods for imputing missing data in longitudinal studies. Analysis of simulated data under missing at random (MAR) mechanisms showed that the generally available MI methods provided less biased estimates with better coverage for the linear regression model and around half of these methods performed well for the estimation of regression parameters for a linear mixed model with random intercept. With the observed data, we observed an inverse association between child BMI and quality of life, with available data as well as multiple imputation. CONCLUSION: Both FCS-Standard and JM-MVN performed well for the estimation of regression parameters in both analysis models. More complex methods that explicitly reflect the longitudinal structure for these analysis models may only be needed in specific circumstances such as irregularly spaced data.

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Metadata

Authors
Huque, M. H., Carlin, J. B., Simpson, J. A., & Lee, K. J.
Venue
BMC Medical Research Methodology
Published
2018-12
Volume
18
Issue
1
Pages
168-168
ISSN
1471-2288 (ISSN-L)
OpenAlex
W2904561288
Cited by
320
References
39
FWCI
17.74
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: A comparison of multiple imputation methods for missing data in longitudinal studies. https://app.cochat.ai/papers/10.1186/s12874-018-0615-6
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Huque, M. H., Carlin, J. B., Simpson, J. A., & Lee, K. J. (2018). A comparison of multiple imputation methods for missing data in longitudinal studies. BMC Medical Research Methodology. https://doi.org/10.1186/s12874-018-0615-6

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