支付意愿的稳定性:随机对照试验中的时间和治疗分配是否会影响支付意愿?
Marjon van der Pol1, Verity Watson1, Dwayne Boyers1
1Health Economics Research Unit, University of Aberdeen, Aberdeen, UK (MVDP, VW, DB).
概括
牙科护理的支付意愿在三年内保持稳定,这证明了健康经济学研究的条件估值方法的可靠性. 这种稳定性对于制定政策和了解长期患者偏好至关重要.
科学领域:
- 卫生经济学 卫生经济学
- 预防性牙科 预防性牙科
- 行为经济学是一种行为经济学.
背景情况:
- 支付意愿 (WTP) 估计对于卫生政策至关重要,但需要随着时间的推移可证明的通用性.
- 稳定性,或者说,就是稳定的.
- 保质期,使用寿命,
- 对于医疗保健服务的WTP的应用尚未得到充分理解.
- 测试WTP稳定性对于医疗保健中可靠的经济评估至关重要.
研究的目的:
- 评估WTP的时间稳定性,用于预防性牙科护理 (尺度和抛光).
- 调查不同治疗频率对WTP稳定性的影响.
- 在三年内,在总和个人层面上检查WTP的稳定性.
主要方法:
- 使用的是支付卡附带估值方法.
- 随机对照试验的909名参与者在基线和每年三年进行调查.
- 使用间隔回归分析来建模WTP随时间变化,控制决定因素并检查治疗分配效应.
主要成果:
- 在为期三年的研究期间,牙科护理的综合平均WTP保持稳定.
- 在不同试验组中,WTP的稳定性是一致的,最高强度组的稳定性略有增加.
- 虽然总体WTP是稳定的,但观察到个人层面的显著变化;WTP函数本身保持稳定.
结论:
- 支付卡附带估值方法在一段时间内为医疗服务提供稳定的WTP值.
- 研究结果支持使用这种方法来评估预防性牙科护理.
- 建议进行进一步的研究,以探索跨不同人群,服务和诱导技术的概括性.
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