Potential misinterpretations caused by collapsing upper categories of comorbidity indices: An illustration from a cohort of older breast cancer survivors

BACKGROUND: Comorbidity indices summarize complex medical histories into concise ordinal scales, facilitating stratification and regression in epidemiologic analyses. Low subject prevalence in the highest strata of a comorbidity index often prompts combination of upper categories into a single strat...

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Bibliographic Details
Main Authors: Ahern, Thomas P, Bosco, Jaclyn LF, Silliman, Rebecca A, Yood, Marianne Ulcickas, Field, Terry S, Wei, Feifei, Lash, Timothy L
Format: Text
Language:English
Published: Dove Medical Press 2009
Subjects:
Methodology
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2943165/
https://www.ncbi.nlm.nih.gov/pubmed/20865090

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