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Inaccurate risk perceptions and individualized risk estimates by patients with type 2 diabetes
Meyers Primary Care Institute Publications and Presentations
  • Barry G. Saver, University of Massachusetts Medical School
  • Kathleen M. Mazor, University of Massachusetts Medical School
  • J. Lee Hargraves, University of Massachusetts Medical School
  • Marcela Hayes, University of Massachusetts Medical School
UMMS Affiliation
Meyers Primary Care Institute; Department of Family Medicine and Community Health
Date
7-1-2014
Document Type
Article
Abstract

BACKGROUND: We evaluated how diabetic patients understand and respond to the presentation of personalized risk information.

METHODS: This was a mixed methods study involving 56 patients with type 2 diabetes and at least 1 additional cardiovascular risk factor. We assessed participants' perceptions of diabetes-related risks; asked them to rank order 6 events (death, heart attack, stroke, blindness, amputation, and kidney failure) by likelihood of occurrence in a specified time frame; presented them with personalized risk estimates; and asked them to re-rank the risks. The final 18 participants were tested to verify understanding before re-ranking risks. Qualitative analysis of interview transcripts identified themes and concepts underlying participants' ways of perceiving and reacting to risk.

RESULTS: While mortality was the most likely outcome for almost all participants, nearly all estimated it to be least likely; only 28% adjusted their mortality rankings to match model predictions. Some did not understand the risk information: only two thirds of those asked could rank risks according to the information presented. Risk perceptions were influenced by factors including "knowing myself," powerful anecdotes, and belief that a "warning shot" would occur before death.

CONCLUSIONS: Personalized risk estimates, particularly about mortality, had limited salience. Some participants could not understand the information, despite presentation in ways suggested by previous research.

Rights and Permissions
Citation: J Am Board Fam Med. 2014 Jul-Aug;27(4):510-9. doi: 10.3122/jabfm.2014.04.140058. Link to article on publisher's site
Related Resources
Link to Article in PubMed
PubMed ID
25002005
Citation Information
Barry G. Saver, Kathleen M. Mazor, J. Lee Hargraves and Marcela Hayes. "Inaccurate risk perceptions and individualized risk estimates by patients with type 2 diabetes" Vol. 27 Iss. 4 (2014) ISSN: 1557-2625 (Linking)
Available at: http://works.bepress.com/barry_saver/41/