Resources Repository
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ReviewPublication 2017Validation and Calibration of Structural Models that Combine Information from Multiple Sources
This is a review of calibration and validation methods in mathematical modeling. Such models that …
This is a review of calibration and validation methods in mathematical modeling. Such models that attempt to capture structural relationships between their components and combine information from multiple sources are increasingly used in medicine. The authors provide an overview of methods for model validation and calibration and survey studies comparing alternative approaches. Model validation entails a confrontation of models with data, background knowledge, and other models, and can inform judgments about model credibility. Calibration involves…
Calibration/Validation | Mathematical Models | Health/Medicine -
ArticlePublication 2017Reduced Burden of Childhood Diarrheal Diseases through Increased Access to Water and Sanitation in India: Modeling Analysis
This analysis estimates the health and economic benefits of scaling up the coverage of piped …
This analysis estimates the health and economic benefits of scaling up the coverage of piped water and improved sanitation to a near-universal 95% level among Indian households. The authors used an agent-based microsimulation platform, IndiaSim, to model disease progression and individual healthcare-seeking behavior in India, and use ECEA to estimate health and economic outcomes over time. They found that scaling up access to piped water and improved sanitation could avert 43,352 diarrheal episodes and 68…
Microsimulation | Priority Setting/Ethics | Costing Methods | Health Outcomes | Cost-Effectiveness Analysis | Child/Nutrition | Social Determinants | Environmental Health | Economics/Finance | Energy/Engineering | Health/Medicine | Science/Technology | Asia & Pacific -
ArticlePublication 2016Cost-Effectiveness of Hypertension Treatment According to 2014 Guidelines
This article compared the cost-effectiveness of hypertension treatment in non-Hispanic blacks and non-Hispanic whites according …
This article compared the cost-effectiveness of hypertension treatment in non-Hispanic blacks and non-Hispanic whites according to 2014 US hypertension treatment guidelines. The cardiovascular disease (CVD) policy model was used to simulate CVD events, quality-adjusted life years (QALYs), and treatment costs in 35- to 74-year-old adults with untreated hypertension. CVD incidence, mortality, and risk factor levels were obtained from cohort studies, hospital registries, vital statistics, and national surveys. The authors assumed a willingness-to-pay for health of…
Microsimulation | Cost-Effectiveness Analysis | Chronic Disease/Risk | Health/Medicine | North America -
ArticlePublication 2016Cost-Effectiveness of Intensive Blood Pressure Management
This article aimed to evaluate the cost-effectiveness of intensive blood pressure management compared with standard …
This article aimed to evaluate the cost-effectiveness of intensive blood pressure management compared with standard management among 68-year-old high-risk adults with hypertension but not diabetes. A Markov cohort model was developed to estimate lifetime costs and quality-adjusted life-years (QALYs) discounted at 3% annually. The Systolic Blood Pressure Intervention Trial (SPRINT) was used to estimate treatment effects and adverse event rates. The authors used Centers for Disease Control and Prevention Life Tables to project age- and…
State-Transition | Cost-Effectiveness Analysis | Chronic Disease/Risk | Health/Medicine | North America -
ArticlePublication 2016Cost-Effectiveness of Blood Pressure Treatment Guidelines in Adults 35-74
In this article the authors used the CVD Policy Model to compare the cost-effectiveness of …
In this article the authors used the CVD Policy Model to compare the cost-effectiveness of conservative versus intensive blood pressure treatment guidelines in adult hypertensive patients aged 35 to 74 years. Outcomes included in the study were CVD events, treatment costs, quality-adjusted life years, and drug and monitoring costs projected over the years 2016 to 2026. The effectiveness and costs of hypertension were calculated for treatment according to the 2003 Joint National Committee (JNC)-7 or…
Microsimulation | Cost-Effectiveness Analysis | Chronic Disease/Risk | Clinical Care | Health/Medicine | North America -
ArticlePublication 2016Cost-Effectiveness of Collaborative Care for Depression and Comorbid Diabetes or CVD
This article, published in BMJ Open, presents an economic model that combines a decision tree …
This article, published in BMJ Open, presents an economic model that combines a decision tree and a Markov cohort model to investigate the long-term cost-effectiveness of collaborative care versus usual care for individuals with depression and comorbid diabetes and/or cardiovascular disease. Data from the COINCIDE trial informs the model input parameters. The COINCIDE trial is a randomized controlled trial of collaborative care versus usual care that enrolled 387 participants from 36 primary care general practices…
State-Transition | Cost-Effectiveness Analysis | Chronic Disease/Risk | Mental Health | Health/Medicine | Europe -
ArticlePublication 2016Cost-Effectiveness of Diagnosing HIV Infection During Early Infancy in South Africa
In this study the clinical impact and cost-effectiveness of four different early infant HIV diagnosis …
In this study the clinical impact and cost-effectiveness of four different early infant HIV diagnosis (EID) testing strategies for HIV-exposed infants in South Africa were compared using a microsimulation model. The strategies included (1) no EID (diagnosis only after illness), (2) and (3) testing once (at birth alone or at 6 weeks of age alone), and (4) testing twice (at birth and 6 weeks of age). Findings showed that the testing at birth alone strategy…
Microsimulation | Cost-Effectiveness Analysis | Infectious Diseases | Child/Nutrition | Health/Medicine | Sub-Saharan Africa -
ArticlePublication 2016Identifying Cost-Effective Dynamic Policies to Control Epidemics
This paper describes a mathematical decision model for identifying dynamic health policies for controlling epidemics. …
This paper describes a mathematical decision model for identifying dynamic health policies for controlling epidemics. The dynamic policies aim to select the best current intervention based on accumulating epidemic data and the availability of resources at each decision point. An algorithm is proposed to approximate dynamic policies that optimize the population's net health benefit, a performance measure which accounts for both health and monetary outcomes. The authors further illustrate how dynamic policies can be defined and…
Dynamic Simulation | Mathematical Models | Dynamic Transmission | Cost-Effectiveness Analysis | Infectious Diseases | Health/Medicine -
ArticlePublication 2016Prevention of Hepatitis C by Screening and Treatment in U.S. Prisons
This study assesses the health and economic impact of hepatitis C virus (HCV) screening and …
This study assesses the health and economic impact of hepatitis C virus (HCV) screening and treatment in U.S. prisons on the broader HCV epidemic. Employing an agent-based microsimulation model of HCV transmission and disease progression, data from published literature inform the analysis. The target populations include individuals in U.S. prisons and the general community over a 30-year timeframe, adopting a societal perspective. Interventions encompass risk-based and universal opt-out HCV screening in prisons, followed by treatment…
Microsimulation | Cost-Effectiveness Analysis | Infectious Diseases | Chronic Disease/Risk | Health/Medicine | North America