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Utilization of Continuous "Spinners" to Communicate Risk.

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Visual aids like spinners and icon arrays improve patient understanding of medical treatment risks compared to numbers alone. Spinners particularly helped patients choose treatments with fewer side effects.

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Area of Science:

  • Health communication
  • Medical decision-making
  • Patient education

Background:

  • Patients increasingly participate in medical decisions, requiring understanding of treatment outcome probabilities.
  • Low numeracy skills can hinder patients' ability to interpret risk information.
  • Effective risk communication is crucial for informed patient choices.

Purpose of the Study:

  • To compare the effectiveness of different risk presentation formats for medical information.
  • To evaluate how visual aids impact patient understanding and preference for treatments.
  • To assess the utility of spinners and icon arrays in communicating probabilistic outcomes.

Main Methods:

  • 151 subjects with chronic back pain were randomized into three groups.
  • Each group received information on two medications with different side effect profiles using distinct formats: numeric only, numeric with icon arrays, or numeric with spinners.
  • Participants answered questions on risk knowledge, medication preference, and presentation format likeability.

Main Results:

  • Both spinner and icon array formats significantly improved risk knowledge compared to the numeric-only format.
  • Visual formats, especially spinners, were rated as more likeable by participants.
  • Patients using the spinner format were more inclined to select the medication with a lower side-effect burden.

Conclusions:

  • Continuous spinners offer a novel and effective method for presenting risk information to patients.
  • Visual risk communication tools can enhance patient comprehension and support better treatment decisions.
  • The spinner format shows promise in guiding patients toward treatments with reduced adverse effects.