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

BACKGROUND: 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 but were never before applied to the WOMAC. In this st...

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Detalles Bibliográficos
Autores principales: Ghomrawi, Hassan MK, Mandl, Lisa A, Rutledge, John, Alexiades, Michael M, Mazumdar, Madhu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2011
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3124424/
https://www.ncbi.nlm.nih.gov/pubmed/21605458
http://dx.doi.org/10.1186/1471-2474-12-109

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