Development and demonstration of a state model for the estimation of incidence of partly undetected chronic diseases
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CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners. As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
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Development and demonstration of a state model for the estimation of incidence of partly undetected chronic diseases

Filetype[PDF-1.38 MB]


English

Details:

  • Alternative Title:
    BMC Med Res Methodol
  • Personal Author:
  • Description:
    Background

    Estimation of incidence of the state of undiagnosed chronic disease provides a crucial missing link for the monitoring of chronic disease epidemics and determining the degree to which changes in prevalence are affected or biased by detection.

    Methods

    We developed a four-part compartment model for undiagnosed cases of irreversible chronic diseases with a preclinical state that precedes the diagnosis. Applicability of the model is tested in a simulation study of a hypothetical chronic disease and using diabetes data from the Health and Retirement Study (HRS).

    Results

    A two dimensional system of partial differential equations forms the basis for estimating incidence of the undiagnosed and diagnosed disease states from the prevalence of the associated states. In the simulation study we reach very good agreement between the estimates and the true values. Application to the HRS data demonstrates practical relevance of the methods.

    Discussion

    We have demonstrated the applicability of the modeling framework in a simulation study and in the analysis of the Health and Retirement Study. The model provides insight into the epidemiology of undiagnosed chronic diseases.

    Electronic supplementary material

    The online version of this article (doi:10.1186/s12874-015-0094-y) contains supplementary material, which is available to authorized users.

  • Subjects:
  • Source:
  • Pubmed ID:
    26560517
  • Pubmed Central ID:
    PMC4642685
  • Document Type:
  • Volume:
    15
  • Collection(s):
  • Main Document Checksum:
  • Download URL:
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