
doi: 10.1002/pst.2052
pmid: 32808739
SummaryBy employing all the observed information and the optimal augmentation term, we propose an augmented inverse probability weighted fractional imputation method (AFI) to handle covariates missing at random in quantile regression. Compared with the existing completely case analysis, inverse probability weighting, multiple imputation and fractional imputation based on quantile regression model with missing covarites, we carry out simulation study to investigate its performance in estimation accuracy and efficiency, computational efficiency and estimation robustness. We also talk about the influence of imputation replicates in our AFI. Finally, we apply our methodology to part of the National Health and Nutrition Examination Survey data.
Models, Statistical, Data Interpretation, Statistical, Humans, Computer Simulation, Nutrition Surveys, Probability
Models, Statistical, Data Interpretation, Statistical, Humans, Computer Simulation, Nutrition Surveys, Probability
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