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Identification of dementia: agreement among national survey data, medicare claims, and death certificates.

Publication ,  Journal Article
Ostbye, T; Taylor, DH; Clipp, EC; Scoyoc, LV; Plassman, BL
Published in: Health Serv Res
February 2008

OBJECTIVE: To estimate the proportion of seniors with dementia from three independent data sources and their agreement. DATA SOURCES: The longitudinal Asset and Health Dynamics among the Oldest Old (AHEAD) study (n=7,974), Medicare claims, and death certificate data. STUDY DESIGN: Estimates of the proportion of individuals with dementia from: (1) self- or proxy-reported cognitive status measures from surveys, (2) Medicare claims, and (3) death certificates. Agreement using Cohen's kappa; multivariate logistic regression. PRINCIPAL FINDINGS: The proportion varied substantially among the data sources. Agreement was poor (kappa: 0.14-0.46 depending upon comparison assessed); the individuals identified had relatively modest overlap. CONCLUSIONS: Estimates of dementia occurrence based on cognitive status measures from three independent data sources were not interchangeable. Further validation of these sources is needed. Caution should be used if policy is based on only one data source.

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Published In

Health Serv Res

DOI

ISSN

0017-9124

Publication Date

February 2008

Volume

43

Issue

1 Pt 1

Start / End Page

313 / 326

Location

United States

Related Subject Headings

  • United States
  • Research Design
  • Medicare
  • Mass Screening
  • Male
  • Insurance Claim Review
  • Incidence
  • Humans
  • Health Surveys
  • Health Policy & Services
 

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Ostbye, T., Taylor, D. H., Clipp, E. C., Scoyoc, L. V., & Plassman, B. L. (2008). Identification of dementia: agreement among national survey data, medicare claims, and death certificates. Health Serv Res, 43(1 Pt 1), 313–326. https://doi.org/10.1111/j.1475-6773.2007.00748.x
Ostbye, Truls, Donald H. Taylor, Elizabeth C. Clipp, Lynn Van Scoyoc, and Brenda L. Plassman. “Identification of dementia: agreement among national survey data, medicare claims, and death certificates.Health Serv Res 43, no. 1 Pt 1 (February 2008): 313–26. https://doi.org/10.1111/j.1475-6773.2007.00748.x.
Ostbye T, Taylor DH, Clipp EC, Scoyoc LV, Plassman BL. Identification of dementia: agreement among national survey data, medicare claims, and death certificates. Health Serv Res. 2008 Feb;43(1 Pt 1):313–26.
Ostbye, Truls, et al. “Identification of dementia: agreement among national survey data, medicare claims, and death certificates.Health Serv Res, vol. 43, no. 1 Pt 1, Feb. 2008, pp. 313–26. Pubmed, doi:10.1111/j.1475-6773.2007.00748.x.
Ostbye T, Taylor DH, Clipp EC, Scoyoc LV, Plassman BL. Identification of dementia: agreement among national survey data, medicare claims, and death certificates. Health Serv Res. 2008 Feb;43(1 Pt 1):313–326.
Journal cover image

Published In

Health Serv Res

DOI

ISSN

0017-9124

Publication Date

February 2008

Volume

43

Issue

1 Pt 1

Start / End Page

313 / 326

Location

United States

Related Subject Headings

  • United States
  • Research Design
  • Medicare
  • Mass Screening
  • Male
  • Insurance Claim Review
  • Incidence
  • Humans
  • Health Surveys
  • Health Policy & Services