Is there a role for expectation maximization imputation in addressing missing data in research using WOMAC questionnaire? Comparison to the standard mean approach and a tutorial
<p>Abstract</p> <p>Background</p> <p>Standard mean imputation for missing values in the Western Ontario and Mc Master (WOMAC) Osteoarthritis Index limits the use of collected data and may lead to bias. Probability model-based imputation methods overcome such limitations...
Main Authors: | , , , , |
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Format: | Article |
Language: | English |
Published: |
BMC
2011-05-01
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Series: | BMC Musculoskeletal Disorders |
Online Access: | http://www.biomedcentral.com/1471-2474/12/109 |