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• W2997144920 abstract "Comorbidity network analysis (CNA) is a graph-theoretic approach to systems medicine based on associations revealed from disease co-occurrence data. Researchers have used CNA to explore epidemiological patterns, differentiate populations, characterize disorders, and more; but these techniques have not been comprehensively evaluated. Our objectives were to assess the stability of common CNA techniques.We obtained seven co-occurrence data sets, most from previous CNAs, coded using several ontologies. We constructed comorbidity networks under various modeling procedures and calculated summary statistics and centrality rankings. We used regression, ordination, and rank correlation to assess these properties' sensitivity to the source of data and construction parameters.Most summary statistics were robust to variation in link determination but somewhere sensitive to the association measure. Some more effectively than others discriminated among networks constructed from different data sets. Centrality rankings, especially among hubs, were somewhat sensitive to link determination and highly sensitive to ontology. As multivariate models incorporated additional effects, comorbid associations among low-prevalence disorders weakened while those between high-prevalence disorders shifted negative.Pairwise CNA techniques are generally robust, but some analyses are highly sensitive to certain parameters. Multivariate approaches expose additional conceptual and technical limitations to the usual pairwise approach.We conclude with a set of recommendations we believe will help CNA researchers improve the robustness of results and the potential of follow-up research." @default.
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• W2997144920 date "2019-12-31" @default.
• W2997144920 modified "2023-10-16" @default.
• W2997144920 title "Sensitivity of comorbidity network analysis" @default.
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• W2997144920 doi "https://doi.org/10.1093/jamiaopen/ooz067" @default.
• W2997144920 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7309234" @default.
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• W2997144920 hasPublicationYear "2019" @default.
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