"Comorbidity" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.

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The presence of co-existing or additional diseases with reference to an initial diagnosis or with reference to the index condition that is the subject of study. Comorbidity may affect the ability of affected individuals to function and also their survival; it may be used as a prognostic indicator for length of hospital stay, cost factors, and outcome or survival.

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This graph shows the total number of publications written about "Comorbidity" by people in this website by year, and whether "Comorbidity" was a major or minor topic of these publications.
Bar chart showing 856 publications over 30 distinct years, with a maximum of 60 publications in 2016
To see the data from this visualization as text, click here.