Department of Health Education and Promotion, Maastricht University, P,O, Box 616, 6200, MD Maastricht, The Netherlands.
BMC Med Inform Decis Mak. 2013 Dec 18;13:136. doi: 10.1186/1472-6947-13-136.
'An ounce of prevention is worth a pound of cure' is a common saying, and indeed, most health economic studies conclude that people are more willing to pay for preventive measures than for treatment activities. This may be because most health economic studies ask respondents to compare preventive measures with treatment, and thus prompt respondents to consider other uses of resources. However, psychological theorizing suggests that, when methods do not challenge subjects to consider other uses of resources, curative treatment is favored over prevention. Could it be that while prevention is praised, cure is preferred?
In two experimental studies, we investigated, from a psychological perspective and using a between-subjects design, whether prevention or treatment is preferred and why. In both studies, participants first read a lung cancer prevention or treatment intervention scenario that varied on the prevention-treatment dimension, but that were the same on factors like 'costs per saved life' and kind of disease. Then participants completed a survey measuring appreciation (general and monetary) as well as a number of potential mediating variables.
Both studies clearly demonstrated that, when the design was between-subjects, participants had greater (general and monetary) appreciation for treatment interventions than for preventive interventions with perceived urgency of the intervention quite consistently mediating this effect. Differences in appreciation of treatment over preventive treatment were shown to be .59 (Study 1) and .45 (Study 2) on a 5-point scale. Furthermore, participants thought that health insurance should compensate more for the treatment than for preventive measures, differences of 16% (Study 1), and 22% (Study 2). When participants were asked to directly compare both interventions on the basis of a short description, they preferred the preventive intervention.
It appears that people claim to prefer prevention when they are asked to consider other use of resources, but otherwise they prefer treatment. This preference is related to perceived urgency. The preference for treatment may be related to the prevention-treatment dimension itself, but also to variations on other dimensions that are inherently linked to prevention and treatment (like different efficacy rates and costs per treatment).
“预防胜于治疗”是一句常见的话,事实上,大多数健康经济学研究得出的结论是,人们更愿意为预防措施而不是治疗活动付费。这可能是因为大多数健康经济学研究要求受访者将预防措施与治疗进行比较,从而促使受访者考虑资源的其他用途。然而,心理学理论表明,当方法不要求受试者考虑资源的其他用途时,治疗方法优于预防方法。难道是因为预防虽被称赞,但治疗更受欢迎?
在两项实验研究中,我们从心理学角度出发,采用被试间设计,研究了人们更喜欢预防还是治疗,以及原因是什么。在这两项研究中,参与者首先阅读了一个肺癌预防或治疗干预情景,该情景在预防-治疗维度上有所不同,但在“每挽救一条生命的成本”和疾病类型等因素上是相同的。然后,参与者完成了一项衡量欣赏(一般和货币)以及一些潜在中介变量的调查。
这两项研究都清楚地表明,当设计为被试间时,与具有紧迫性的预防干预相比,参与者对治疗干预的欣赏(一般和货币)更高,干预的感知紧迫性相当一致地调节了这种效果。在 5 分制上,对治疗的欣赏与对预防治疗的欣赏差异分别为.59(研究 1)和.45(研究 2)。此外,参与者认为健康保险应该对治疗的补偿高于预防措施,差异分别为 16%(研究 1)和 22%(研究 2)。当参与者被要求根据简短描述直接比较这两种干预措施时,他们更喜欢预防干预。
似乎当人们被要求考虑资源的其他用途时,他们会声称更喜欢预防,但在其他情况下,他们更喜欢治疗。这种偏好与感知紧迫性有关。对治疗的偏好可能与预防-治疗维度本身有关,但也可能与预防和治疗固有的其他维度的变化有关(如不同的疗效和治疗成本)。