Understanding Treatment Effectiveness Through Postponement of Heart Attacks
Author Information
Author(s): Dahl Rasmus, Gyrd-Hansen Dorte, Kristiansen Ivar Sønbø, Nexøe Jørgen, Bo Nielsen Jesper
Primary Institution: University of Southern Denmark
Hypothesis
Lay people's preferences for a preventive therapy against heart attack are influenced by the magnitude of its effect when expressed in terms of postponement of disease.
Conclusion
Lay people can discriminate between levels of treatment effectiveness when they are presented in terms of postponement of an adverse event.
Supporting Evidence
- 58% of respondents accepted the hypothetical treatment.
- Acceptance increased with the length of postponement, from 39% for 1 month to 73% for 8 years.
- Participants who found the effectiveness information easy to understand were more likely to consent to therapy.
Takeaway
This study shows that people can better understand how effective a treatment is if it's explained as delaying a heart attack instead of using complicated numbers.
Methodology
A random sample of 1,367 non-institutionalized Danes aged 40+ was interviewed in person about their willingness to accept a hypothetical preventive drug treatment.
Potential Biases
Participants may have misinterpreted the effectiveness information, assuming guaranteed benefits.
Limitations
The response rate was relatively low (50%), and the study sample was not entirely representative of the Danish population.
Participant Demographics
Mean age of respondents was 60 years, 52% were female, and 74% had education beyond elementary school.
Statistical Information
P-Value
0.004
Confidence Interval
95% CI 0.61–0.97
Statistical Significance
p = 0.004
Digital Object Identifier (DOI)
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