Resources Repository
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ArticlePublication 2013Estimated Mortality Impact of Vaccinations 2011–2020 in 73 GAVI Alliance Countries
From August to December 2011, a multidisciplinary group with expertise in mathematical modeling was constituted …
From August to December 2011, a multidisciplinary group with expertise in mathematical modeling was constituted by the GAVI Alliance and the Bill & Melinda Gates Foundation to estimate the impact of vaccination in 73 countries supported by the GAVI Alliance. The number of deaths averted in persons projected to be vaccinated during 2011–2020 was estimated for ten antigens: hepatitis B, yellow fever, Haemophilus influenzae type B (Hib), Streptococcus pneumoniae, rotavirus, Neisseria meningitidis serogroup A, Japanese…
Health Outcomes | Infectious Diseases | Mathematical Models | State-Transition | Dynamic Transmission | Microsimulation | Global Governance | Economics/Finance | Health/Medicine | Science/Technology | Sub-Saharan Africa | Middle East & North Africa | Latin America & Caribbean | Asia & Pacific -
ArticlePublication 2013Contribution of H. Pylori and Smoking to US Incidence of Gastric Adenocarcinoma: A Microsimulation Model
Although gastric cancer has declined dramatically in the US, the disease remains the second leading …
Although gastric cancer has declined dramatically in the US, the disease remains the second leading cause of cancer mortality worldwide. This analysis estimates the contribution of risk factor trends on past and future intestinal-type non-cardia gastric adenocarcinoma (NCGA) incidence. The authors developed a population-based microsimulation model of intestinal-type NCGA and calibrated it to U.S. epidemiologic data on precancerous lesions and cancer. The model explicitly incorporated the impact of Helicobacter pylori and smoking on disease natural history, for which…
Calibration/Validation | Chronic Disease/Risk | Microsimulation | Social Determinants | Culture/Society | Health/Medicine | North America -
ArticlePublication 2013Public Finance of Rotavirus Vaccination in India and Ethiopia: Extended CEA
This study uses extended cost-effectiveness analysis (ECEA) to evaluate a hypothetical publicly financed program for …
This study uses extended cost-effectiveness analysis (ECEA) to evaluate a hypothetical publicly financed program for rotavirus vaccination in India and Ethiopia. The authors measured program impact on: (1) averted rotavirus deaths; (2) reduction in household expenditures; (3) financial risk protection; and (4) distributional consequences across the country’s wealth strata. In India and Ethiopia, the program was predicted to decrease rotavirus deaths substantially, and effectively provide financial risk protection among the poor, while also reducing household…
Health Outcomes | Infectious Diseases | Priority Setting/Ethics | Cost-Effectiveness Analysis | Child/Nutrition | Social Determinants | Culture/Society | Economics/Finance | Health/Medicine | Sub-Saharan Africa | Asia & Pacific -
ArticlePublication 2010Health and Economic Impact of Rotavirus Vaccination in GAVI-Eligible Countries
Rotavirus infection is responsible for about 500,000 deaths annually, and the disease burden is disproportionately …
Rotavirus infection is responsible for about 500,000 deaths annually, and the disease burden is disproportionately borne by children in low-income countries. Motivated by the global recommendation by the WHO that all countries include infant rotavirus vaccination in their national immunization programs, the objective of this analysis was to provide information on the expected health, economic and financial consequences of rotavirus vaccines in the 72 GAVI support-eligible countries. The authors synthesized population-level data from various sources (primarily from…
Health Outcomes | Infectious Diseases | Mathematical Models | State-Transition | Cost-Effectiveness Analysis | Child/Nutrition | Economics/Finance | Health/Medicine | Sub-Saharan Africa | Middle East & North Africa | Latin America & Caribbean | Asia & Pacific -
ArticlePublication 2010Model Uncertainty in Economic Evaluation of Health Interventions: Rotavirus Vaccination in Vietnam
Motivated by observed discrepancies between 2 published studies on the cost-effectiveness of rotavirus vaccination in …
Motivated by observed discrepancies between 2 published studies on the cost-effectiveness of rotavirus vaccination in Vietnam, the authors' objectives were to illustrate a specific, systematic approach to assessing model (structure and process) uncertainty and to quantify explicitly the contributions of different sources of variation in the outputs of different studies that share the same research question. On the basis of a series of working definitions of key model elements, the authors developed 5 alternative computer…
Calibration/Validation | Infectious Diseases | Mathematical Models | State-Transition | Cost-Effectiveness Analysis | Economics/Finance | Health/Medicine | Asia & Pacific -
ArticlePublication 2009Cost-Effectiveness of Alternative Pregnancy Termination Strategies in Mexico City
This study evaluated the health and economic outcomes associated with three alternative first-trimester abortion techniques …
This study evaluated the health and economic outcomes associated with three alternative first-trimester abortion techniques in Mexico City using a computer-based model to simulate induced abortion and its potential complications. Strategies included alternative modalities for first-trimester pregnancy termination: hospital-based dilatation and curettage (D&C), hospital-based manual vacuum aspiration (MVA), clinic-based MVA and medical abortion using vaginal misoprostol. Outcomes included number of complications, lifetime costs, life expectancy, and quality-adjusted life expectancy. Assuming all options were equally available,…
Health Outcomes | Maternal/Reproductive Health | State-Transition | Cost-Effectiveness Analysis | Health/Medicine | Latin America & Caribbean -
ArticlePublication 2009Cost-Effectiveness of Rotavirus Vaccination in Vietnam
This article reports on a cost-effectiveness analysis of rotavirus vaccination, including varying degrees of severity, …
This article reports on a cost-effectiveness analysis of rotavirus vaccination, including varying degrees of severity, age-dependency of clinical manifestation, and additional features of the disease (e.g., the possibility of reinfection and varying degrees of partial immunity conferred by natural infection). The authors developed a Markov model that reflects key features of rotavirus infection, using the most recent data available at the time of their analysis. They applied the model to the 2004 Vietnamese birth cohort…
Calibration/Validation | Infectious Diseases | Mathematical Models | Cost-Effectiveness Analysis | Child/Nutrition | Health Systems | Health/Medicine | Asia & Pacific -
ArticlePublication 2007Economic Evaluation of Hepatitis B Vaccination in Low-Income Countries: Cost-Effectiveness Affordability Curves
In the face of uncertainties about both the health and economic consequences of a vaccine …
In the face of uncertainties about both the health and economic consequences of a vaccine program, as well as the availability and magnitude of resources needed to fund the program, cost-effectiveness affordability curves can provide information to decision-makers about the probability that a program will be both cost-effective and affordable: these are distinct but equally relevant considerations in resource-poor settings. This paper describes the application of this method to assess a hepatitis B vaccination program in the…
Costing Methods | Infectious Diseases | Mathematical Models | State-Transition | Microsimulation | Cost-Effectiveness Analysis | Health Systems | Economics/Finance | Health/Medicine | Sub-Saharan Africa