Resources Repository
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ArticlePublication 2013Validation and Calibration of a Simulation Model of Pediatric HIV Infection
The authors developed a microsimulation model of pediatric HIV disease progression using the Cost-Effectiveness of …
The authors developed a microsimulation model of pediatric HIV disease progression using the Cost-Effectiveness of Preventing AIDS Complications (CEPAC) model framework. This CEPAC-Pediatric model was then validated by varying CD4 data and comparing the corresponding model-generated survival curves to empirical survival curves obtained from the International Epidemiologic Database to Evaluate AIDS (IeDEA). The model was calibrated to other African countries by systematically varying immunologic and HIV mortality-related input parameters. In the calibration analyses, the model-generated…
Microsimulation | Calibration/Validation | Infectious Diseases | Child/Nutrition | Health/Medicine | Sub-Saharan Africa -
ArticlePublication 2013Using Occupational Injury Data to Estimate VSL
This article discusses the use of occupational fatality rate data to estimate the additional pay …
This article discusses the use of occupational fatality rate data to estimate the additional pay workers receive for bearing greater risks, while controlling for other aspects of the job and characteristics of the worker. This tradeoff rate is typically referenced as the value of a statistical life (VSL). The extensive U.S. labor market literature generating VSL estimates has utilized several fatality rate measures which are typically matched to employment information on workers from large datasets.…
Preferences/Values | Benefit-Cost Analysis | Policy/Regulation | College | Graduate | Critical Thinking/Analysis -
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…
Microsimulation | Calibration/Validation | Chronic Disease/Risk | Social Determinants | Culture/Society | Health/Medicine | North America -
ArticlePublication 2013Valuing Health Risk Reductions
In this article, the authors discuss how to value risk reductions in the context of …
In this article, the authors discuss how to value risk reductions in the context of benefit-cost analysis. Many public policies and private actions affect the risk of injury, illness, or death, yet changes in these risks are not easily valued using market prices. The authors begin with a pragmatic focus, describing the analytic framework and the approaches currently used for valuation, including estimates of willingness to pay (WTP), cost of illness (COI), and monetized quality-adjusted…
Preferences/Values | Benefit-Cost Analysis | Policy/Regulation | College | Graduate | Critical Thinking/Analysis -
ReviewPublication 2013Valuing the Economic Benefits of Complex Interventions
This is a review of economic evaluations of complex health interventions. Complex interventions, involving interlinked …
This is a review of economic evaluations of complex health interventions. Complex interventions, involving interlinked packages of care, challenge the application of current methods of economic evaluation that focus on measuring only health gain. The authors find that complex interventions may be problematic on two levels. First, the complexity means the intervention may not fit into one of the current appraisal systems, and/or second, maximizing health is not the only objective. This paper discusses the…
Preferences/Values | Decision Analysis | Health Systems | Policy/Regulation | Economics/Finance | Government/Law | Health/Medicine | Science/Technology | Europe -
GuidelinesPublication 2013Decision and Simulation Modeling in Systematic Reviews
The purpose of this review is to provide guidance for determining when incorporating a decision-analytic …
The purpose of this review is to provide guidance for determining when incorporating a decision-analytic model alongside a systemic review would be of added value for decision making purposes. The purpose of systematic reviews is to synthesize the current scientific literature on a particular topic in the form of evidence reports and technology assessments to assist public and private organizations in developing strategies that improve the quality of health care and decision making. However, there…
Mathematical Models | Evidence Synthesis | Decision Analysis | Infectious Diseases | Child/Nutrition | Chronic Disease/Risk | Health/Medicine | North America -
ReviewPublication 2012Modeling Preventative Strategies Against HPV-Related Disease in Developed Countries
This review article is part of a special supplement on “Comprehensive Control of HPV Infections …
This review article is part of a special supplement on “Comprehensive Control of HPV Infections and Related Diseases.” At the time of its writing, prophylactic vaccination against human papillomavirus (HPV) in pre-adolescent females had been introduced in most developed countries, supported by modeled evaluations that had almost universally found vaccination of pre-adolescent females to be cost-effective. Vaccination of pre-adolescent males had been shown to be cost-effective at a cost per vaccinated individual of ~US$400-500 if…
Mathematical Models | Cost-Effectiveness Analysis | Chronic Disease/Risk | Social Determinants | Health Systems | Health/Medicine | Global -
GuidelinesPublication 2012Model Transparency and Validation: A Report of the ISPOR-SMDM Modeling Task Force-7
This paper discusses how to improve trust in the use of health care models through …
This paper discusses how to improve trust in the use of health care models through validation and transparency. Validation involves face validity (wherein experts evaluate model structure, data sources, assumptions, and results), verification or internal validity (check accuracy of coding), cross validity (comparison of results with other models analyzing same problem), external validity (comparing model results to real-world results), and predictive validity (comparing model results with prospectively observed events). Recommendations are provided for nontechnical description…
Mathematical Models | Costing Methods | Health Outcomes | Calibration/Validation | Health/Medicine -
GuidelinesPublication 2012Conceptualizing a Model: A Report of the ISPOR-SMDM Modeling Task Force-2
This article provides a series of consensus-based best practices regarding the process of model conceptualization, …
This article provides a series of consensus-based best practices regarding the process of model conceptualization, specifically when models are used to inform medical decisions and health-related resource allocation. The authors divide the conceptualization process into two distinct components: the conceptualization of the problem, which converts knowledge of the health care process or decision into a representation of the problem, followed by the conceptualization of the model itself, which matches the attributes and characteristics of a…
Mathematical Models | Decision Analysis | Health/Medicine