Braithwaite R Scott, Meltzer David O, King Joseph T, Leslie Douglas, Roberts Mark S
Department of Medicine, Section of General Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA.
Med Care. 2008 Apr;46(4):349-56. doi: 10.1097/MLR.0b013e31815c31a7.
In the United States, $50,000 per Quality-Adjusted Life-Year (QALY) is a decision rule that is often used to guide interpretation of cost-effectiveness analyses. However, many investigators have questioned the scientific basis of this rule, and it has not been updated.
We used 2 separate approaches to investigate whether the $50,000 per QALY rule is consistent with current resource allocation decisions. To infer a lower bound for the decision rule, we estimated the incremental cost-effectiveness of recent (2003) versus pre-"modern era" (1950) medical care in the United States. To infer an upper bound for the decision rule, we estimated the incremental cost-effectiveness of unsubsidized health insurance versus self-pay for nonelderly adults (ages 21-64) without health insurance. We discounted both costs and benefits, following recommendations of the Panel on Cost-Effectiveness in Health and Medicine.
Our base case analyses suggest that plausible lower and upper bounds for a cost-effectiveness decision rule are $183,000 per life-year and $264,000 per life-year, respectively. Our sensitivity analyses widen the plausible range (between $95,000 per life-year saved and $264,000 per life-year saved when we considered only health care's impact on quantity of life, and between $109,000 per QALY saved and $297,000 per QALY saved when we considered health care's impact on quality as well as quantity of life) but it remained substantially higher than $50,000 per QALY.
It is very unlikely that $50,000 per QALY is consistent with societal preferences in the United States.
在美国,每质量调整生命年(QALY)50,000美元是一个常用于指导成本效益分析解读的决策规则。然而,许多研究者对该规则的科学依据提出了质疑,且它从未更新过。
我们采用两种不同的方法来研究每QALY 50,000美元的规则是否与当前的资源分配决策相一致。为推断该决策规则的下限,我们估算了美国近期(2003年)与“现代时代”之前(1950年)医疗保健的增量成本效益。为推断该决策规则的上限,我们估算了未参保的非老年成年人(21 - 64岁)未获补贴的医疗保险与自费的增量成本效益。我们按照健康与医学成本效益小组的建议对成本和效益进行了贴现。
我们的基础案例分析表明,成本效益决策规则合理的下限和上限分别为每生命年183,000美元和每生命年264,000美元。我们的敏感性分析拓宽了合理范围(仅考虑医疗保健对生命数量的影响时,每挽救一个生命年在95,000美元至264,000美元之间;同时考虑医疗保健对生命质量和数量的影响时,每挽救一个QALY在109,000美元至297,000美元之间),但仍远高于每QALY 50,000美元。
每QALY 50,000美元极不可能与美国的社会偏好一致。