Resources Repository
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ArticlePublication 2017Likelihood Approach for Calibration of Stochastic Epidemic Models
Stochastic transmission dynamic models are especially useful for studying the early emergence of novel pathogens …
Stochastic transmission dynamic models are especially useful for studying the early emergence of novel pathogens given the importance of chance events when the number of infectious individuals is small. However, methods for parameter estimation and prediction for these types of stochastic models remain limited. This paper describes a calibration and prediction framework for stochastic compartmental transmission models of epidemics. The proposed method applies a linear noise approximation to describe the size of the fluctuations, and…
Dynamic Simulation | Health Systems | Dynamic Transmission | Calibration/Validation | Infectious Diseases | Health/Medicine | Global -
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 | Chronic Disease/Risk | Cost-Effectiveness Analysis | 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 | Chronic Disease/Risk | Cost-Effectiveness Analysis | Clinical Care | Health/Medicine | North America -
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 | Chronic Disease/Risk | Cost-Effectiveness Analysis | Infectious Diseases | Health/Medicine | North America -
ArticlePublication 2015Cost-Effectiveness & Budget Impact of Hepatitis C Virus Treatment with Sofosbuvir & Ledipasvir in the U.S.
This study evaluates the cost-effectiveness and budget impact of sofosbuvir and ledipasvir for treating chronic …
This study evaluates the cost-effectiveness and budget impact of sofosbuvir and ledipasvir for treating chronic hepatitis C virus (HCV) infection compared to the old standard of care (oSOC). Using a microsimulation model based on HCV natural history, data from published literature, and a third-party payer perspective, the analysis considers treatment-naive and treatment-experienced HCV populations in the United States over a lifetime horizon. Sofosbuvir-based therapies are found to add 0.56 quality-adjusted life-years (QALYs) relative to oSOC,…
Microsimulation | Chronic Disease/Risk | Cost-Effectiveness Analysis | Infectious Diseases | Health/Medicine | North America -
ArticlePublication 2015Benefits of Scaling a Home-Based Neonatal Care Package in Rural India
In 2011, India introduced a home-based newborn care (HBNC) package to be delivered by community …
In 2011, India introduced a home-based newborn care (HBNC) package to be delivered by community health workers across rural areas. The authors estimate the disease and economic burden that could be averted by scaling up the HBNC in rural India using IndiaSim, an agent-based simulation model. Under one scenario, the existing community health worker network begins providing HBNC for rural households without access to home- or facility-based newborn care. In the second scenario, coverage of…
Microsimulation | Health Systems | Costing Methods | Cost-Effectiveness Analysis | Child/Nutrition | Culture/Society | Health/Medicine | 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…
Microsimulation | Chronic Disease/Risk | Calibration/Validation | Social Determinants | Culture/Society | Health/Medicine | North America -
ArticlePublication 2011Dynamic Policies for Controlling Spread of Emerging Infections
This paper illustrates the design and implementation of a dynamic health policy for the control …
This paper illustrates the design and implementation of a dynamic health policy for the control of a novel strain of influenza, where two types of interventions are assumed to be available during the epidemic: (1) vaccines and antiviral drugs, and (2) transmission reducing measures, such as social distancing or mask use, that may be turned "on" or "off" repeatedly during the course of epidemic. A modeling approach is described for developing dynamic health policies that allow…
Dynamic Simulation | Health Systems | Mathematical Models | Dynamic Transmission | Infectious Diseases | Policy/Regulation | Health/Medicine | Science/Technology | Global -
ArticlePublication 2011Health and Economic Impact of HPV 16/18 Vaccination and Cervical Cancer Screening in Eastern Africa
In this article the authors use epidemiologic data from Kenya, Mozambique, Tanzania, Uganda, and Zimbabwe …
In this article the authors use epidemiologic data from Kenya, Mozambique, Tanzania, Uganda, and Zimbabwe to develop models of HPV-related infection and disease. For each country, they assessed HPV vaccination of girls before age 12 followed by screening with HPV DNA testing once, twice, or three times per lifetime (at ages 35, 40, 45). For women over age 30, they assessed only screening (with HPV DNA testing up to three times per lifetime or VIA…
Microsimulation | Chronic Disease/Risk | Calibration/Validation | Cost-Effectiveness Analysis | Infectious Diseases | Clinical Care | Economics/Finance | Health/Medicine | Science/Technology | Sub-Saharan Africa