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在DCETTO中的持续时间变化和决策:来自SF-6Dv2的证据
Hosein Ameri1, Thomas G Poder1
1Département de Gestion, évaluation Et Politique de santé, School of Public Health, University of Montreal, Montréal, Canada.
健康状态持续时间的变化在离散选择实验 (DCETTO) 中显著影响偏好. 不选择选项的持续时间增加可以使其更受欢迎,在健康经济评估中证明非线性时间效应.
科学领域:
- 卫生经济学 卫生经济学
- 决策科学 决策科学 决策科学
- 心理测量 心理测量 心理测量
背景情况:
- 离散选择实验 (DCE) 被广泛用于引起健康偏好.
- 将时间持续时间作为DCE (DCETTO) 中的属性纳入,对于准确评估健康状况至关重要.
- 了解持续时间变化如何影响选择对于强大的研究设计至关重要.
研究的目的:
- 调查改变健康状态持续时间对参与者选择在DCE框架内的影响.
- 评估定效应和持续时间变化对偏好转移的影响.
- 为DCETTO研究的设计和解释提供信息.
主要方法:
- 加拿大北克省的普通人口样本参与了一项使用SF-6Dv2.2.的两期DCETTO研究.
- 参与者在两个阶段完成了相同的选择组:初始 (DCE原始) 和经过修改的持续时间 (DCE改变).
- 麦克纳马的测试分析了在持续时间调整 (1-20年) 之前和之后的选择变化.
主要成果:
- 没有选择的选项持续时间的显著增加 (≥2x) 导致它成为首选选项 (p<0.05).
- 选择选项的持续时间减少并不一定导致其被拒绝.
- 参与者对最初的选择表现出强烈的定效应,持续时间的变化对切换有适度的影响.
结论:
- 健康状况持续时间对DCETTO的偏好表现出非线性影响.
- 定效应是显著的,但持续时间的修改可以影响选择切换.
- 结果为优化DCETTO设计和改善健康状况评估的有效性提供了关键的见解.
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