Center for Health Decision Science, Department of Health Policy and Management, Harvard School of Public Health, Boston, MA, USA.
Center for Health Decision Science, Department of Health Policy and Management, Harvard School of Public Health, Boston, MA, USA.
Vaccine. 2013 Dec 30;31 Suppl 6:G65-77. doi: 10.1016/j.vaccine.2012.06.096.
To date, no studies have evaluated the cost-effectiveness of human papillomavirus (HPV) vaccination in countries in the Extended Middle East and North Africa (EMENA) region. We synthesized population and epidemiologic data for 20 EMENA countries using a model-based approach to estimate averted cervical cancer cases and deaths, disability-adjusted life years (DALYs) and cost-effectiveness ratios (I$ [international dollars] per DALY averted) associated with HPV vaccination of pre-adolescent girls. We utilized additional epidemiologic data from Algeria, Lebanon, and Turkey to evaluate select cervical cancer screening strategies either alone or in combination with vaccination. Results showed that pre-adolescent vaccination of five consecutive birth cohorts at 70% coverage has the potential to prevent over 180,000 cervical cancer cases. Cases averted varied by country, largely due to differences in cancer burden and population size; 69% of cases averted occurred in the three GAVI-eligible countries in EMENA. Despite the low cervical cancer incidence in EMENA, we found that HPV vaccination was cost-effective using a threshold of each country's gross domestic product per capita (a common metric for evaluating cost-effectiveness) in all but five countries at a cost per vaccinated girl of I$25 ($5 per dose). However, cost-effectiveness diminished with increasing vaccine cost; at a cost of I$200 per vaccinated girl, HPV vaccination was cost-effective in only five countries. When the cost per vaccinated girl exceeded I$50 in Lebanon and Turkey and I$150 in Algeria, screening alone was most attractive. We identified opportunities to improve upon current national screening guidelines, involving less frequent screening every 3-5 years. While pre-adolescent HPV vaccination promises to be a cost-effective strategy in most EMENA countries at low costs, decision makers will need to consider many other factors, such as affordability, acceptability, feasibility, and competing health priorities, when making decisions about cervical cancer prevention. This article forms part of a regional report entitled "Comprehensive Control of HPV Infections and Related Diseases in the Extended Middle East and North Africa Region" Vaccine Volume 31, Supplement 6, 2013. Updates of the progress in the field are presented in a separate monograph entitled "Comprehensive Control of HPV Infections and Related Diseases" Vaccine Volume 30, Supplement 5, 2012.
迄今为止,在中东和北非延伸地区(EMENA)国家,还没有研究评估人乳头瘤病毒(HPV)疫苗接种的成本效益。我们使用基于模型的方法,综合了 20 个 EMENA 国家的人群和流行病学数据,以估计 HPV 疫苗接种对青春期前女童的宫颈癌发病和死亡、残疾调整生命年(DALY)和成本效益比(每避免一个 DALY 的 I$[国际美元])。我们还利用了来自阿尔及利亚、黎巴嫩和土耳其的额外流行病学数据,评估了单独或联合使用 HPV 疫苗接种的特定宫颈癌筛查策略。结果表明,对五个连续出生队列进行青春期前疫苗接种,覆盖率达到 70%,有可能预防超过 18 万例宫颈癌病例。不同国家的病例预防情况有所不同,主要是由于癌症负担和人口规模的差异;EMENA 地区的三个符合 GAVI 资格的国家有 69%的病例得到预防。尽管 EMENA 的宫颈癌发病率较低,但我们发现,使用各国人均国内生产总值(评估成本效益的常用指标)作为阈值,HPV 疫苗接种在除五个国家以外的所有国家都是具有成本效益的,每个接种女孩的成本为 25 美元(每剂 5 美元)。然而,随着疫苗成本的增加,成本效益会降低;当每个接种女孩的成本达到 200 美元时,HPV 疫苗接种仅在五个国家具有成本效益。在黎巴嫩和土耳其,每个接种女孩的成本超过 50 美元,在阿尔及利亚超过 150 美元时,单独筛查更具吸引力。我们发现有机会改进当前的国家筛查指南,将筛查频率降低到每 3-5 年一次。虽然在 EMENA 国家,青春期前 HPV 疫苗接种的成本效益很高,成本很低,但决策者在决定宫颈癌预防措施时,需要考虑到许多其他因素,如可负担性、可接受性、可行性和竞争卫生优先事项。本文是题为“中东和北非延伸地区 HPV 感染和相关疾病的综合控制”的区域报告的一部分,发表在 2013 年第 31 卷增刊 6 期。另一份题为“HPV 感染和相关疾病的综合控制”的专题论文介绍了该领域的最新进展,发表在 2012 年第 30 卷增刊 5 期。
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