Mortality versus survival graphs: improving temporal consistency in perceptions of treatment effectiveness.
Mortality versus survival graphs: improving temporal consistency in perceptions of treatment effectiveness.
复制标题
死亡率与生存图：提高治疗效果认知的时间一致性。
DOI：
10.1016/j.pec.2006.10.013
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发表时间：
2007
影响因子：
3.5
通讯作者：
Ubel,PeterA
中科院分区：
文献类型：
--
作者：
Zikmund-Fisher,BrianJ;Fagerlin,Angela;Ubel,PeterA
先前的研究表明，当生存图显示的数据年份较少而数据较多时，人们认为治疗效果较差。我们测试了是否使用死亡率图将减少这种时间不一致的bias.METHODSA人口统计学上不同的样本1461互联网用户阅读一个假设的疾病，然后随机查看生存率或死亡率图，显示无论是5年的数据或15年的治疗结果数据。参与者确定了最有效的治疗方法，提供了两种治疗方法的有效性比较评级，并回答了理解问题。尽管两种情况下相对风险降低是相同的，但在5年和15年生存率图中，受访者的治疗有效性评级差异显着。在死亡率图条件下，这种变化显著降低。对理解措施的反应好坏参半：死亡率图的观察者不太能识别哪种治疗更有效，但能更好地正确报告个体数据点。结论与生存率图相比，治疗有效性的感知与死亡率图在时间上更一致。实践意义所有基于线的风险图（无论是以生存率还是死亡率为框架）应强调持续时间信息，以促进对治疗有效性的更好理解。
OBJECTIVEPrevious research has demonstrated that people perceive treatments as less effective when survival graphs show fewer years of data versus more data. We tested whether using mortality graphs would reduce this temporal inconsistency bias.METHODSA demographically diverse sample of 1461 Internet users read about a hypothetical disease and then were randomized to view either survival or mortality graphs that showed either 5 years of data or 15 years of treatment outcomes data. Participants identified the most effective treatment, provided ratings comparing the effectiveness of two treatments, and answered comprehension questions.RESULTSTreatment effectiveness ratings varied significantly between respondents seeing the 5 year and 15 year survival graphs even though the relative risk reduction was the same in both cases. This variation was significantly reduced in the mortality graph conditions. Responses on comprehension measures were mixed: viewers of mortality graphs were less able to identify which treatment was more effective but better able to correctly report individual data points.CONCLUSIONSPerceptions of treatment effectiveness appear more temporally consistent with mortality graphs than with survival graphs.PRACTICE IMPLICATIONSAll line-based risk graphics (whether framed in survival or mortality terms) should highlight duration information to facilitate improved comprehension of treatment effectiveness.