血清型不确定性对成人肺炎球菌疫苗选择的影响:信息分析的价值
Angela R Wateska1, Shoroq M Altawalbeh2, Mary Patricia Nowalk1
1University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
American journal of preventive medicine
|February 25, 2026
概括
信息分析的价值表明,对65岁以上的成年肺炎球菌疫苗进行进一步研究是有必要的. 然而,无论血清型不确定性如何,支持21肺炎球菌合疫苗.
科学领域:
- 公共卫生 公共卫生
- 疫苗学 疫苗学 疫苗学
- 卫生经济学 卫生经济学
背景情况:
- 由于不断变化的血清型流行病学,肺炎球菌疫苗的有效性和公共卫生影响尚不确定.
- 之前的分析支持21肺炎球菌结合疫苗,但血清型变化可能会改变其优势性.
- 信息价值 (VOI) 分析可以指导研究重点,以解决这些不确定性.
研究的目的:
- 评估美国队伍中成人肺炎球菌疫苗信息的价值.
- 通过估计完美和部分完美的信息的预期值来确定最佳的研究投资.
- 为了比较不同支付意愿门和年龄组 (65岁以上和50-64岁) 的VOI.
主要方法:
- 利用决策分析模型,在美国人口中比较成人肺炎球菌疫苗.
- 结合了有关疾病/死亡风险,疫苗接种率和疫苗有效性的数据.
- 计算完美信息的预期值 (EVPI) 和部分完美信息的预期值 (EVPPI) 在各种支付意愿值 ($0-$200,000/QALY).
主要成果:
- 在65岁以上的个人中,VOI在10万美元/QALY值时最高,人口EVPI为1.781亿美元.
- 肺炎球菌病死亡率/残疾和疫苗有效性参数的EVPPI分别为8960万美元和7380万美元,为10万美元/QALY.
- 对于21肺炎球菌合疫苗血清型发病率,EVPPI为1900万美元 (65岁以上) 和139080美元 (50-64岁).
结论:
- VOI分析支持进一步研究65岁及以上成年人的特定参数.
- 对于21肺炎球菌合疫苗血清型发病率的EVPPI在两个年龄组中都很低.
- 这些研究结果支持在成年人中使用21肺炎球菌合疫苗,不论是否存在持续的血清型不确定性.
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