Resources Repository
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ArticlePublication 2007Multiparameter Calibration of a Natural History Model of Cervical Cancer
This paper presents a two-step approach to model calibration of a comprehensive natural history model …
This paper presents a two-step approach to model calibration of a comprehensive natural history model of human papillomavirus (HPV) and cervical cancer. Using primary epidemiologic data from a longitudinal study of women in Brazil, a plausible range for each input parameter was identified that would produce model output within the 95% confidence intervals of the data. The authors then performed a simultaneous search over all input parameters to identify parameter sets that produced output consistent…
Microsimulation | Mathematical Models | Calibration/Validation | Chronic Disease/Risk | Infectious Diseases | Health/Medicine | Latin America & Caribbean -
ArticlePublication 2002Empirically Calibrated Model of Hepatitis C Virus Infection in the United States
This article presents an epidemiologic model of hepatitis C in the United States. The authors …
This article presents an epidemiologic model of hepatitis C in the United States. The authors used empirical calibration of model parameters to gain insights into uncertainty in the natural history of hepatitis C and to improve future projections. The authors identified model inputs by way of a systematic review. Model simulations were conducted and model predictions were compared with epidemiologic data on infection prevalence and mortality from liver cancer. Goodness-of-fit criteria were used to identify…
Mathematical Models | Calibration/Validation | State-Transition | Chronic Disease/Risk | Infectious Diseases | Health/Medicine | North America -
ArticlePublication 2024Extended Cost-Effectiveness Analysis of Interventions to Improve Uptake of Diabetes Services in South Africa
This study examines the potential impact of a conditional cash transfer (CCT) program on diabetes …
This study examines the potential impact of a conditional cash transfer (CCT) program on diabetes diagnosis and treatment service utilization in South Africa (SA) using extended cost-effectiveness analysis (ECEA). Applying a Markov model over a 45-year period, the analysis compares costs, health benefits, and financial risk protection (FRP) attributes of different CCT strategies, drawing from SA-specific data. Three scenarios were simulated: covering diagnosis services only, treatment services only, and both diagnosis and treatment services. Cost-effectiveness,…
Mathematical Models | Cost-Effectiveness Analysis | Chronic Disease/Risk | Health Outcomes | Policy/Regulation | Health/Medicine | Sub-Saharan Africa -
ArticlePublication 2023Cost-Effectiveness of Intensive vs. Standard Blood Pressure Control Among Older Patients
This economic analysis explored the cost-effectiveness of intensive vs standard blood pressure control in older …
This economic analysis explored the cost-effectiveness of intensive vs standard blood pressure control in older hypertensive patients between 60 and 80 years in China, the US, and the UK. Treatment outcome data from the Trial of Intensive Blood-Pressure Control in Older Patients with Hypertension (STEP trial) and different cardiovascular risk assessment models for a hypothetical cohort of STEP-eligible patients were used. Costs and utilities were obtained from published sources. A Markov model was used to…
Mathematical Models | Cost-Effectiveness Analysis | Chronic Disease/Risk | Clinical Care | North America -
ArticlePublication 2023Cost-Effectiveness and Long-Term Savings of the Bright Bodies Intervention for Childhood Obesity
This study evaluates the cost-effectiveness of Bright Bodies, a family-based pediatric weight management intervention, using …
This study evaluates the cost-effectiveness of Bright Bodies, a family-based pediatric weight management intervention, using a microsimulation model projecting 10-year BMI trajectories of children with obesity. Data from a randomized controlled trial and follow-up study inform the model, which estimates the intervention's effect on BMI reduction and incremental costs compared to clinical control. Results indicate that Bright Bodies reduces BMI by 1.67 kg/m2 per year over 10 years, with an incremental cost of $360 per…
Microsimulation | Cost-Effectiveness Analysis | Child/Nutrition | Health/Medicine | North America -
ArticlePublication 2023New Type 2 Diabetes Microsimulation Model to Estimate Long-Term Health Outcomes, Costs, Cost-Effectiveness
This study presents a microsimulation model designed to estimate the health effects, costs, and cost-effectiveness …
This study presents a microsimulation model designed to estimate the health effects, costs, and cost-effectiveness of interventions for type 2 diabetes in the United States. Unlike existing models that rely on UK data, this model incorporates newly derived risk equations based on US studies, enhancing its applicability to the US context. The model features a highly modular architecture allowing for easy addition of new modules and interventions, facilitating policy decision-making. Internal validation showed good performance,…
Microsimulation | Cost-Effectiveness Analysis | Chronic Disease/Risk | Health/Medicine | North America -
ArticlePublication 2023Calibration and Validation of the Colorectal Cancer and Adenoma Incidence and Mortality (CRC-AIM) Microsimulation Model Using Deep Neural Networks
This study explores the efficacy of machine learning (ML)-based emulators in calibrating complex microsimulation models, …
This study explores the efficacy of machine learning (ML)-based emulators in calibrating complex microsimulation models, using the Colorectal Cancer (CRC)-Adenoma Incidence and Mortality (CRC-AIM) model as a case study. ML algorithms, including deep neural networks (DNN), were trained and compared using data generated from the CRC-AIM model to predict various outcomes. The DNN outperformed other algorithms and efficiently predicted outcomes, reducing computational burden significantly. The calibrated CRC-AIM model demonstrated cross-model validity against established CISNET models…
Microsimulation | Calibration/Validation | Chronic Disease/Risk | Health/Medicine | North America -
ArticlePublication 2022Cost-Effectiveness of Masked Hypertension Screening and Treatment
The study assessed the health and economic outcomes of screening and treating masked hypertension in …
The study assessed the health and economic outcomes of screening and treating masked hypertension in U.S. adults using the Cardiovascular Disease (CVD) Policy Model, a microsimulation model. The model simulated 100,000 adults suspected of having masked hypertension (office blood pressure [BP] of 120–129/<80 mm Hg, not on antihypertensive medications, and without a history of CVD). Interventions included: usual care alone, usual care with ambulatory BP monitoring (ABPM), and usual care with home BP monitoring (HBPM).…
Microsimulation | Cost-Effectiveness Analysis | Chronic Disease/Risk | Clinical Care | Health/Medicine | North America -
ArticlePublication 2022Health Utility of Drinkers' Family Members
Problematic alcohol use is known to harm individuals surrounding the drinker. This study described the …
Problematic alcohol use is known to harm individuals surrounding the drinker. This study described the health utility of people who reported having a family member(s) whom they perceived as a “problem drinker.” Using a US population dataset, and adjusting for other drinking-related factors, perceiving a family member as a problem drinker was associated with lower health utility on the order of 0.033 (P < 0.001) for a spouse/partner to 0.023 (P < 0.001) for a…
Preferences/Values | Cost-Effectiveness Analysis | Chronic Disease/Risk | North America