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Borre ED, Diab MM, Ayer A, Zhang G, Emmett SD, Tucci DL, Wilson BS, Kaalund K, Ogbuoji O, Sanders GD. Evidence gaps in economic analyses of hearing healthcare: A systematic review. EClinicalMedicine 2021; 35:100872. [PMID: 34027332 PMCID: PMC8129894 DOI: 10.1016/j.eclinm.2021.100872] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 04/13/2021] [Accepted: 04/13/2021] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Hearing loss is a common and costly medical condition. This systematic review sought to identify evidence gaps in published model-based economic analyses addressing hearing loss to inform model development for an ongoing Lancet Commission. METHODS We searched the published literature through 14 June 2020 and our inclusion criteria included decision model-based cost-effectiveness analyses that addressed diagnosis, treatment, or prevention of hearing loss. Two investigators screened articles for inclusion at the title, abstract, and full-text levels. Data were abstracted and the studies were assessed for the qualities of model structure, data assumptions, and reporting using a previously published quality scale. FINDINGS Of 1437 articles identified by our search, 117 unique studies met the inclusion criteria. Most of these model-based analyses were set in high-income countries (n = 96, 82%). The evaluated interventions were hearing screening (n = 35, 30%), cochlear implantation (n = 34, 29%), hearing aid use (n = 28, 24%), vaccination (n = 22, 19%), and other interventions (n = 29, 25%); some studies included multiple interventions. Eighty-six studies reported the main outcome in quality-adjusted or disability-adjusted life-years, 24 of which derived their own utility values. The majority of the studies used decision tree (n = 72, 62%) or Markov (n = 41, 35%) models. Forty-one studies (35%) incorporated indirect economic effects. The median quality rating was 92/100 (IQR:72-100). INTERPRETATION The review identified a large body of literature exploring the economic efficiency of hearing healthcare interventions. However, gaps in evidence remain in evaluation of hearing healthcare in low- and middle-income countries, as well as in investigating interventions across the lifespan. Additionally, considerable uncertainty remains around productivity benefits of hearing healthcare interventions as well as utility values for hearing-assisted health states. Future economic evaluations could address these limitations. FUNDING NCATS 3UL1-TR002553-03S3.
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Affiliation(s)
- Ethan D. Borre
- Department of Medicine, Duke University School of Medicine, Durham, NC, United States
- Duke-Margolis Center for Health Policy, Duke University, Durham, NC, United States
| | - Mohamed M. Diab
- Duke Global Health Institute, Duke University, Durham, NC, United States
| | - Austin Ayer
- Department of Medicine, Duke University School of Medicine, Durham, NC, United States
| | - Gloria Zhang
- Department of Medicine, Duke University School of Medicine, Durham, NC, United States
| | - Susan D. Emmett
- Duke Global Health Institute, Duke University, Durham, NC, United States
- Department of Head and Neck Surgery and Communication Sciences, Duke University School of Medicine, Durham, NC, United States
| | - Debara L. Tucci
- Department of Head and Neck Surgery and Communication Sciences, Duke University School of Medicine, Durham, NC, United States
- National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, MD, United States
| | - Blake S. Wilson
- Duke Global Health Institute, Duke University, Durham, NC, United States
- Department of Head and Neck Surgery and Communication Sciences, Duke University School of Medicine, Durham, NC, United States
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, NC, United States
- Department of Electrical & Computer Engineering, Pratt School of Engineering, Duke University, Durham, NC, United States
| | - Kamaria Kaalund
- Duke-Margolis Center for Health Policy, Duke University, Durham, NC, United States
| | - Osondu Ogbuoji
- Duke-Margolis Center for Health Policy, Duke University, Durham, NC, United States
- Duke Global Health Institute, Duke University, Durham, NC, United States
- Center for Policy Impact in Global Health, Duke Global Health Institute, Durham NC, United States
| | - Gillian D. Sanders
- Department of Medicine, Duke University School of Medicine, Durham, NC, United States
- Duke-Margolis Center for Health Policy, Duke University, Durham, NC, United States
- Duke University Clinical Research Institute, Duke University School of Medicine, Durham NC, United States
- Department of Population Health Sciences, Duke University School of Medicine, Durham, NC, United States
- Corresponding author at: Gillian Sanders Schmidler, PhD, Duke-Robert J. Margolis, MD, Center for Health Policy, 100 Fuqua Drive, Box 90120, Durham, NC 27708-0120.
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Shiri T, Khan K, Keaney K, Mukherjee G, McCarthy ND, Petrou S. Pneumococcal Disease: A Systematic Review of Health Utilities, Resource Use, Costs, and Economic Evaluations of Interventions. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2019; 22:1329-1344. [PMID: 31708071 DOI: 10.1016/j.jval.2019.06.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 06/20/2019] [Accepted: 06/27/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Pneumococcal diseases cause substantial mortality, morbidity, and economic burden. Evidence on data inputs for economic evaluations of interventions targeting pneumococcal disease is critical. OBJECTIVES To summarize evidence on resource use, costs, health utilities, and cost-effectiveness for pneumococcal disease and associated interventions to inform future economic analyses. METHODS We searched MEDLINE, Embase, Web of Science, CINAHL, PsycINFO, EconLit, and Cochrane databases for peer-reviewed studies in English on pneumococcal disease that reported health utilities using direct or indirect valuation methods, resource use, costs, or cost-effectiveness of intervention programs, and summarized the evidence descriptively. RESULTS We included 383 studies: 9 reporting health utilities, 131 resource use, 160 economic costs of pneumococcal disease, 95 both resource use and costs, and 178 economic evaluations of pneumococcal intervention programs. Health state utility values ranged from 0 to 1 for both meningitis and otitis media and from 0.3 to 0.7 for both pneumonia and sepsis. Hospitalization was shortest for otitis media (range: 0.1-5 days) and longest for sepsis/septicemia (6-48). The main categories of costs reported were drugs, hospitalization, and household or employer costs. Resource use was reported in hospital length of stay and number of contacts with general practitioners. Costs and resource use significantly varied among population ages, disease conditions, and settings. Current vaccination programs for both adults and children, antibiotic use and outreach programs to promote vaccination, early disease detection, and educational programs are cost-effective in most countries. CONCLUSION This study has generated a comprehensive repository of health economic evidence on pneumococcal disease that can be used to inform future economic evaluations of pneumococcal disease intervention programs.
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Affiliation(s)
- Tinevimbo Shiri
- Liverpool School of Tropical Medicine, Liverpool, England, UK; Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, England, UK.
| | - Kamran Khan
- Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, England, UK
| | - Katherine Keaney
- Population Evidence and Technologies, Warwick Medical School, University of Warwick, England, UK
| | - Geetanjali Mukherjee
- Population Evidence and Technologies, Warwick Medical School, University of Warwick, England, UK
| | - Noel D McCarthy
- Population Evidence and Technologies, Warwick Medical School, University of Warwick, England, UK
| | - Stavros Petrou
- Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, England, UK; Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, England, UK
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Alvis-Guzman N, Orozco-Africano J, Paternina-Caicedo A, Coronell-Rodríguez W, Alvis-Estrada L, Jervis-Jálabe D, De la Hoz-Restrepo F. Treatment costs of diarrheal disease and all-cause pneumonia among children under-5 years of age in Colombia. Vaccine 2013; 31 Suppl 3:C58-62. [DOI: 10.1016/j.vaccine.2013.05.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Revised: 04/29/2013] [Accepted: 05/08/2013] [Indexed: 10/26/2022]
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De Cock E, Miravitlles M, González-Juanatey JR, Azanza-Perea JR. Valor umbral del coste por año de vida ganado para recomendar la adopción de tecnologías sanitarias en España: evidencias procedentes de una revisión de la literatura. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/bf03320930] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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García-Altés A. Systematic review of economic evaluation studies: Are vaccination programs efficient in Spain? Vaccine 2013; 31:1656-65. [DOI: 10.1016/j.vaccine.2013.01.029] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Revised: 01/10/2013] [Accepted: 01/15/2013] [Indexed: 11/16/2022]
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Ray GT. Pneumococcal conjugate vaccine: review of cost-effectiveness studies in Australia, North America and Europe. Expert Rev Pharmacoecon Outcomes Res 2012; 8:373-93. [PMID: 20528344 DOI: 10.1586/14737167.8.4.373] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The pneumococcal conjugate vaccine (PCV) is the first vaccine proven to be effective in reducing the incidence of invasive pneumococcal disease, pneumonia and acute otitis media in children, and has been recommended for universal use in children in a number of high-income countries. The high cost of the vaccine relative to previous vaccines has generated interest in assessing its cost-effectiveness and numerous cost-effectiveness analyses of PCV have been performed in Australia, North America and Europe. The primary objectives of this review are to enhance the ability to make direct comparisons between these analyses, to aid in the identification and interpretation of methodological differences and to summarize the findings. Although these studies varied greatly in terms of methodology and assumptions, if and when indirect effects and quality-of-life improvements are taken into account, the cost-effectiveness ratios of PCV in these countries are likely to be within the ranges generally considered favorable vis-à-vis other health interventions.
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Affiliation(s)
- G Thomas Ray
- Division of Research, Kaiser Permanente, 2000 Broadway, Oakland, CA 94612, USA.
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Chaiyakunapruk N, Somkrua R, Hutubessy R, Henao AM, Hombach J, Melegaro A, Edmunds JW, Beutels P. Cost effectiveness of pediatric pneumococcal conjugate vaccines: a comparative assessment of decision-making tools. BMC Med 2011; 9:53. [PMID: 21569402 PMCID: PMC3117724 DOI: 10.1186/1741-7015-9-53] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2010] [Accepted: 05/12/2011] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Several decision support tools have been developed to aid policymaking regarding the adoption of pneumococcal conjugate vaccine (PCV) into national pediatric immunization programs. The lack of critical appraisal of these tools makes it difficult for decision makers to understand and choose between them. With the aim to guide policymakers on their optimal use, we compared publicly available decision-making tools in relation to their methods, influential parameters and results. METHODS The World Health Organization (WHO) requested access to several publicly available cost-effectiveness (CE) tools for PCV from both public and private provenance. All tools were critically assessed according to the WHO's guide for economic evaluations of immunization programs. Key attributes and characteristics were compared and a series of sensitivity analyses was performed to determine the main drivers of the results. The results were compared based on a standardized set of input parameters and assumptions. RESULTS Three cost-effectiveness modeling tools were provided, including two cohort-based (Pan-American Health Organization (PAHO) ProVac Initiative TriVac, and PneumoADIP) and one population-based model (GlaxoSmithKline's SUPREMES). They all compared the introduction of PCV into national pediatric immunization program with no PCV use. The models were different in terms of model attributes, structure, and data requirement, but captured a similar range of diseases. Herd effects were estimated using different approaches in each model. The main driving parameters were vaccine efficacy against pneumococcal pneumonia, vaccine price, vaccine coverage, serotype coverage and disease burden. With a standardized set of input parameters developed for cohort modeling, TriVac and PneumoADIP produced similar incremental costs and health outcomes, and incremental cost-effectiveness ratios. CONCLUSIONS Vaccine cost (dose price and number of doses), vaccine efficacy and epidemiology of critical endpoint (for example, incidence of pneumonia, distribution of serotypes causing pneumonia) were influential parameters in the models we compared. Understanding the differences and similarities of such CE tools through regular comparisons could render decision-making processes in different countries more efficient, as well as providing guiding information for further clinical and epidemiological research. A tool comparison exercise using standardized data sets can help model developers to be more transparent about their model structure and assumptions and provide analysts and decision makers with a more in-depth view behind the disease dynamics. Adherence to the WHO guide of economic evaluations of immunization programs may also facilitate this process. Please see related article: http://www.biomedcentral.com/1741-7007/9/55.
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Affiliation(s)
- Nathorn Chaiyakunapruk
- Center of Pharmaceutical Outcomes Research, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok, Thailand
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Boonacker CWB, Broos PH, Sanders EAM, Schilder AGM, Rovers MM. Cost effectiveness of pneumococcal conjugate vaccination against acute otitis media in children: a review. PHARMACOECONOMICS 2011; 29:199-211. [PMID: 21250759 DOI: 10.2165/11584930-000000000-00000] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
While pneumococcal conjugate vaccines have shown to be highly effective against invasive pneumococcal disease, their potential effectiveness against acute otitis media (AOM) might become a major economic driver for implementing these vaccines in national immunization programmes. However, the relationship between the costs and benefits of available vaccines remains a controversial topic. Our objective is to systematically review the literature on the cost effectiveness of pneumococcal conjugate vaccination against AOM in children. We searched PubMed, Cochrane and the Centre for Reviews and Dissemination databases (Database of Abstracts of Reviews of Effects [DARE], NHS Economic Evaluation Database [NHS EED] and Health Technology Assessment database [HTA]) from inception until 18 February 2010. We used the following keywords with their synonyms: 'otitis media', 'children', 'cost-effectiveness', 'costs' and 'vaccine'. Costs per AOM episode averted were calculated based on the information in this literature. A total of 21 studies evaluating the cost effectiveness of pneumococcal conjugate vaccines were included. The quality of the included studies was moderate to good. The cost per AOM episode averted varied from &U20AC;168 to &U20AC;4214, and assumed incidence rates varied from 20,952 to 118,000 per 100,000 children aged 0-10 years. Assumptions regarding direct and indirect costs varied between studies. The assumed vaccine efficacy of the 7-valent pneumococcal CRM197-conjugate vaccine was mainly adopted from two trials, which reported 6-8% efficacy. However, some studies assumed additional effects such as herd immunity or only took into account AOM episodes caused by serotypes included in the vaccine, which resulted in efficacy rates varying from 12% to 57%. Costs per AOM episode averted were inversely related to the assumed incidence rates of AOM and to the estimated costs per AOM episode. The median costs per AOM episode averted tended to be lower in industry-sponsored studies. Key assumptions regarding the incidence and costs of AOM episodes have major implications for the estimated cost effectiveness of pneumococcal conjugate vaccination against AOM. Uniform methods for estimating direct and indirect costs of AOM should be agreed upon to reliably compare the cost effectiveness of available and future pneumococcal vaccines against AOM.
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Affiliation(s)
- Chantal W B Boonacker
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
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Isaacman DJ, Strutton DR, Kalpas EA, Horowicz-Mehler N, Stern LS, Casciano R, Ciuryla V. The impact of indirect (herd) protection on the cost-effectiveness of pneumococcal conjugate vaccine. Clin Ther 2009; 30:341-57. [PMID: 18343273 DOI: 10.1016/j.clinthera.2008.02.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/10/2008] [Indexed: 11/30/2022]
Abstract
BACKGROUND The heptavalent pneumococcal polysaccharide-protein conjugate vaccine (PCV7) confers protection against invasive pneumococcal disease (IPD) caused by serotypes that are responsible for substantial morbidity and mortality throughout the world. In 2000, the 7 serotypes covered by PCV7 accounted for 80% to 90% of serotypes isolated from the blood or cerebrospinal fluid of children aged <6 years in the United States. A previous review of the literature spanning the years 1998 to 2005 pertaining to the incidence of IPD among nonimmunized individuals in countries with universal PCV7 immunization suggested an indirect protective effect (herd protection, or community immunity) after widespread vaccination. Consideration of indirect protection against IPD may enhance cost-benefit evaluations of vaccination programs. OBJECTIVE The objective of this analysis was to review the literature on cost-effectiveness analyses of PCV7 vaccination to determine whether inclusion of the indirect effect in decision-analysis models substantially affects the cost-effectiveness findings in favor of vaccination. METHODS A literature review of cost-effectiveness analyses of PCV7 vaccination was conducted using the DIMDI (Deutschen Institut fur Medizinische Dokumentation und Information) superbase, which comprises 12 databases, to identify articles published between January 2000 and October 2006 using the search terms 7-valent pneumococcal conjugate vaccine AND herd immunity/herd effect, and 7-valent pneumococcal conjugate vaccine AND cost-effectiveness, cost-utility, or cost-benefit analyses. Monetary values were converted to euros and inflated to 2006 values, and events avoided were converted to rates per 100,000 vaccinated to allow comparison across studies. The sensitivity analyses from the models that included indirect effects were examined. RESULTS There was wide variability in the health-economic results of the 16 studies that met the inclusion criteria. In studies that did not include indirect effects, the adjusted cost per life-year gained ranged from cost saving to euro140,723 from the societal perspective and from euro56,724 to euro324,218 from the payer perspective. In the 4 studies that included indirect effects, a significant and consistent improvement was seen in the health-economic results in favor of vaccination with PCV7. No trends in variability across time or geographic region were observed. CONCLUSIONS Indirect effects had a significant effect on cost-effectiveness, as seen in the sensitivity analyses. Future models should include indirect effects in evaluating the cost-effectiveness of PCV7.
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Affiliation(s)
- Daniel J Isaacman
- Global Medical Affairs, Wyeth Pharmaceuticals, Collegeville, Pennsylvania, USA.
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Giorgi-Rossi P, Merito M, Borgia P. Cost-effectiveness of introducing the conjugated pneumococcal vaccine to routine free immunizations for infants in Lazio, Italy. Health Policy 2009; 89:225-38. [DOI: 10.1016/j.healthpol.2008.05.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Revised: 05/30/2008] [Accepted: 05/31/2008] [Indexed: 10/21/2022]
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Claes C, Reinert RR, von der Schulenburg JMG. Cost effectiveness analysis of heptavalent pneumococcal conjugate vaccine in Germany considering herd immunity effects. THE EUROPEAN JOURNAL OF HEALTH ECONOMICS : HEPAC : HEALTH ECONOMICS IN PREVENTION AND CARE 2009; 10:25-38. [PMID: 18379830 DOI: 10.1007/s10198-008-0098-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2006] [Accepted: 05/31/2007] [Indexed: 05/26/2023]
Abstract
BACKGROUND In Germany the heptavalent pneumococcal conjugate vaccine (PCV7) has been recommended as a general infant vaccination since 2006. Data from similar programmes in the USA have reported a reduction of pneumococcal diseases in both vaccinated and unvaccinated populations, suggesting herd immunity effects. This study analyses the cost-effectiveness of a general vaccination with PCV7 in Germany based on these findings. METHODS A Markov model adapts efficacy and herd immunity data to the German population. Further main model inputs are incidence, vaccination uptake, serotype distribution, case fatality rates, and vaccination and health-care costs. RESULTS A general vaccination with PCV7 would avoid about 232,000 pneumococcal infections and 1,879 premature deaths per year in Germany. From the health-care payer's perspective, direct cost savings would outweigh vaccination expenditures by a ratio of 1:1.16. The sensitivity analysis shows that these estimates are quite conservative. CONCLUSION Based on the health-economic evaluation, the authors recommend the continuation of the general recommendation of PCV7 according to the 3 + 1 schedule within the German Statutory Health Insurance.
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Affiliation(s)
- Christa Claes
- Centre for Health Economics and Health System Research, Leibniz University of Hannover, Hannover, Germany.
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Beutels P, Thiry N, Van Damme P. Convincing or confusing? Economic evaluations of childhood pneumococcal conjugate vaccination--a review (2002-2006). Vaccine 2006; 25:1355-67. [PMID: 17208339 DOI: 10.1016/j.vaccine.2006.10.034] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2006] [Revised: 10/13/2006] [Accepted: 10/18/2006] [Indexed: 11/20/2022]
Abstract
We review 15 economic analyses of pneumococcal conjugate vaccines, published between 2002 and 2006, in terms of methodology, assumptions, results and conclusions. We found a great diversity in assumptions (eg, vaccine efficacy parameters, incidence rates for both invasive and non-invasive disease) mainly due to local variation in data and opinions. Accordingly, the results varied greatly, from total net savings to over euro 100,000 per discounted QALY gained. The cost of the vaccination program (determined by price per dose and schedule (4 or 3 doses, or fewer)), and likely herd immunity impacts are highly influential though rarely explored in these published studies. If the net long-term impact (determined by a mixture of effects related to herd immunity, serotype replacement, antibiotic resistance and cross reactivity) remains beneficial and if a 3-dose schedule confers near-equivalent protection to a 4-dose schedule, the cost-effectiveness of PCV7 vaccination programs can be viewed as attractive in developed countries.
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Affiliation(s)
- Philippe Beutels
- Centre for the Evaluation of Vaccination, Epidemiology and Social Medicine, University of Antwerp (Campus Drie Eiken), Universiteitsplein 1, 2610 Antwerp, Belgium.
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Wisløff T, Abrahamsen TG, Bergsaker MAR, Løvoll Ø, Møller P, Pedersen MK, Kristiansen IS. Cost effectiveness of adding 7-valent pneumococcal conjugate (PCV-7) vaccine to the Norwegian childhood vaccination program. Vaccine 2006; 24:5690-9. [PMID: 16735083 DOI: 10.1016/j.vaccine.2006.04.042] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2005] [Revised: 04/11/2006] [Accepted: 04/26/2006] [Indexed: 11/27/2022]
Abstract
BACKGROUND Streptococcus pneumoniae is a frequent bacterial cause of serious infections that may cause permanent sequelae and death. A 7-valent conjugate vaccine may reduce the incidence of pneumococcal disease, but some previous studies have questioned the cost-effectiveness of the vaccine. The aim of this study was to estimate costs and health consequences of adding this pneumococcal vaccine to the Norwegian childhood vaccination programme, taking the possibility of herd immunity into account. METHODS We developed a simulation model (Markov-model) using data on the risk of pneumococcal disease in Norway, the efficacy of the vaccine as observed in clinical trials from other countries and adjusted for serotype differences, the cost of the vaccine and quality of life for patients with sequelae from pneumococcal disease. The results were expressed as incremental (additional) costs (in euros; euro1.00 approximately NOK8.37), incremental life years and incremental quality adjusted life years. Four different sets of main results are presented: costs and (quality adjusted) life years, with and without indirect costs (the value of lost production due to work absenteeism) and with and without potential herd immunity (i.e. childhood vaccination protects adults against pneumococcal disease). RESULTS When indirect costs were disregarded, and four vaccine doses used, the incremental cost per life year gained was euro153,000 when herd immunity was included, and euro311,000 when it was not. When accounting for indirect costs as well, the cost per life year gained was euro58,000 and euro124,000, respectively. Assuming that three vaccine doses provide the same protection as four, the cost per life year gained with this regimen was euro90,000 with herd immunity and euro184,000 without (when indirect costs are disregarded). If indirect costs are also included, vaccination both saves costs and gains life years. INTERPRETATION/CONCLUSION In Norway, governmental guidelines indicate that only interventions with cost per life year of less than euro54,000 should be implemented. This implies that four dose vaccination is not cost-effective even if decision makers includes both herd immunity and indirect costs in their decisions. If three doses offer the same protection as four doses, however, vaccination would be cost-saving when indirect costs are included, but not with only herd immunity. COMMENT In the autumn of 2005, the Norwegian Government decided to include PCV-7 in the vaccination program. This analysis was used by the Ministry of Health and Ministry of Finance during the decision process.
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Affiliation(s)
- Torbjørn Wisløff
- Norwegian Knowledge Centre for the Health Services, Department of Pediatrics, Rikshospitalet-Radiumhospitalet Medical Center, University of Oslo, Norway.
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Luque Moreno A, Bergadà Masó A, Sin Opi JM, Liarte Guillén A, Mayol L, Macià Martí J. [Nonvaccine Streptococcus pneumoniae serotypes causing acute bacterial meningitis]. An Pediatr (Barc) 2006; 64:170-2. [PMID: 16527072 DOI: 10.1157/13084179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The pneumococcal heptavalent conjugate vaccine protects children aged less than 2 years old from invasive pneumococcal disease (IPD). Efficacy is 89-93% in the US population and 71-86% in European studies. The vaccine confers active immunization against the main serotypes causing IPD (4, 6B, 9V, 14, 18C, 19F y 23F). We describe 2 children who presented with pneumococcal meningitis caused by nonvaccine serotypes. As a result of the widespread use of the heptavalent vaccine, there may be a shift in the serotypes causing IPD.
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Affiliation(s)
- A Luque Moreno
- Servicio de Pediatría, Hospital Universitario de Girona Doctor Josep Trueta, Girona, Spain.
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