Informed Medical Decisions Foundation Funded Research

The Impact of Visuals and an Interactive, Personalized Risk Calculator on Knowledge, Comprehension and Decision Quality Related to the Carotid Endarterectomy Decision Aid

  • Primary Investigator:
    Ethan A. Halm
  • Primary Location:
    University of Texas Southwestern Medical Center
  • Grant Type & Year:
    IIG 2009
  • Publications:
    Publication1
    Publication2

Purpose

This proposal aims to leverage the existing investment by the Informed Medical Decisions Foundation in a CEA decision aid (DA) to answer two applied research questions with implications for both the CEA DA and future (new and/or revised or cross-nationally adapted) DAs.  How well can a DA’s main message (the ‘gist’) and key risk/benefit data be communicated with a lower budget, more pragmatic, lower tech written booklet (Version A) compared to two more sophisticated alternatives better-suited to web-based delivery channels, but which are still less involved than a full production DVD?

Our specific aims are:

Specific aim 1: To assess the incremental gain in knowledge, message comprehension, and decision quality for a DA Version B that adds simple animated graphics and diagrams to the base program of static text and graphics (Version A).

Specific aim 2: To assess the incremental gain in knowledge, message comprehension, and decision quality for a DA Version C that adds an interactive, personal risk/benefit calculator compared to Version B (& A) which present generic, average risk/benefit information

While these alternative strategies are attractive from a common sense and risk communication/health psychology theoretical perspective, there is scant published data about how much better relative to the increased time and money. Is the “extra juice worth the squeeze?”

Posted in Decision Aid Components, Decision Quality, Investigator-Initiated Grants, Investigator-Initiated Research, Patient Knowledge, Patient Preferences | Tagged , , Comments Off