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Patients' and physicians' interpretations of graphic data displays
1Department of Veterans Affairs Medical Center, Oregon Health Sciences University, Portland 97207.
Summary
Physicians and medical students, unlike patients, frequently changed their treatment preferences when presented with graphic data displays of survival curves. This suggests data visualization significantly impacts clinical decision-making for healthcare professionals.
Area of Science:
- Medical Decision Making
- Health Communication
- Data Visualization in Medicine
Background:
- Patient and physician treatment preferences are crucial for effective healthcare.
- Graphic data displays, such as survival curves, are increasingly used in clinical settings.
- Understanding how these visualizations influence preferences is vital for informed decision-making.
Purpose of the Study:
- To evaluate the impact of graphic data displays (five-year survival curves) on patient and physician treatment preferences.
- To compare how patients, physicians, and medical students respond to variations in survival curve data.
- To identify factors influencing treatment choice when presented with graphical medical information.
Main Methods:
- A cross-sectional survey was conducted at a university-based Department of Veterans Affairs Medical Center.
- Participants included 119 general medicine patients, 43 physicians, and 67 medical students.
- Three five-year survival graphs with varying areas under the curve were presented to assess treatment preference shifts.
Main Results:
- Most patients maintained consistent treatment preferences across the three graphical displays.
- A significantly larger proportion of physicians and medical students altered their treatment preferences compared to patients (p < 0.0001).
- Respondents did not receive explicit numerical data regarding the differences between treatment curves.
Conclusions:
- Graphic data displays, specifically survival curves, can significantly influence treatment preferences, particularly among healthcare professionals.
- Physicians and medical students demonstrate greater susceptibility to framing effects in survival data compared to patients.
- Further research is needed to optimize the use of graphical data in clinical decision-making to ensure patient-centered care.
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