Resources Repository
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ReviewPublication 2010Validation of Population-Based Disease Simulation Models: A Review
This article develops a framework for validating population-based chronic disease simulation models, and reviews the …
This article develops a framework for validating population-based chronic disease simulation models, and reviews the principles and methods for such models. While computer simulation models are used increasingly to support public health research and policy, questions about their quality persist. Based on the review, the authors formulated a set of recommendations for gathering evidence of model credibility. They find that evidence of model credibility derives from examining: 1) the process of model development, 2) the…
Mathematical Models | Health/Medicine | Social Determinants | Calibration/Validation | Chronic Disease/Risk -
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…
Mathematical Models | Health/Medicine | Health Systems | Calibration/Validation | Cost-Effectiveness Analysis | Infectious Diseases | Child/Nutrition | Asia & Pacific -
ArticlePublication 2008Mathematical Models of Cervical Cancer Prevention in the Asia Pacific Region
This article reports on a model-based approach to estimate averted cervical cancer cases and deaths, …
This article reports on a model-based approach to estimate averted cervical cancer cases and deaths, disability-adjusted life years (DALYs) and incremental cost-effectiveness ratios (I$/DALY averted) for vaccination of young adolescent girls against human papillomavirus (HPV) types 16 and 18. The authors used population-based and epidemiologic data for 25 countries in Asia (22 GAVI-Alliance eligible countries, Thailand, China and Japan). They found that an absolute reduction in lifetime cancer risk varied across countries, depending on incidence,…
Mathematical Models | Health/Medicine | Health Systems | Microsimulation | Calibration/Validation | Cost-Effectiveness Analysis | Infectious Diseases | Chronic Disease/Risk | Economics/Finance | Science/Technology | 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…
Mathematical Models | Health/Medicine | Health Systems | Costing Methods | State-Transition | Microsimulation | Cost-Effectiveness Analysis | Infectious Diseases | Economics/Finance | Sub-Saharan Africa -
ReviewPublication 1978Basic Principles of ROC Analysis
The limitations of diagnostic "accuracy" as a measure of decision performance require introduction of the …
The limitations of diagnostic "accuracy" as a measure of decision performance require introduction of the concepts of the "sensitivity" and "specificity" yet even these do not provide a unique description of diagnostic performance because they depend on the arbitrary selection of a decision threshold. The receiver operating characteristic (ROC) curve is shown to be a simple yet complete empirical description of this decision threshold effect, indicating all possible combinations of the relative frequencies of the…
Test Performance | Health/Medicine | Clinical Care