Resources Repository
-
ArticlePublication 2016Mexico's SSB Tax Policy Impact on Diabetes and Cardiovascular Disease: Modeling Study
In 2014, Mexico instituted a nationwide tax on sugar-sweetened beverages (SSBs) in order to reduce …
In 2014, Mexico instituted a nationwide tax on sugar-sweetened beverages (SSBs) in order to reduce the high level of SSB consumption, a preventable cause of diabetes and cardiovascular disease (CVD). In this analyses, a computer simulation model of CVD was used to project potential long-range health and economic impacts of SSB taxation in Mexico. Two main scenarios were modeled: (1) a 10% reduction in SSB consumption (corresponding to the reduction observed after tax implementation) and…
Microsimulation | Mathematical Models | Health/Medicine | Latin America & Caribbean | Cost-Effectiveness Analysis | Chronic Disease/Risk | Policy/Regulation | Economics/Finance | Food/Agriculture | Government/Law -
ArticleWeb Portal 2017PLoS Collection: Prevention, Diagnosis and Treatment of Sexually Transmitted Infections
Globally, the World Health Organization (WHO) estimates that more than one million new sexually transmitted …
Globally, the World Health Organization (WHO) estimates that more than one million new sexually transmitted infections (STIs) occur each day, incurring a very substantial burden of morbidity, mortality and additional infections. The pathogens responsible include bacteria, parasites and viruses, and intensive research is needed to address the substantial barriers to diagnosis and treatment of STIs, and the behavioral challenges of prevention. This PLOS collection, published in collaboration with WHO, focuses on global policy and systems…
Priority Setting/Ethics | Mathematical Models | Health/Medicine | Latin America & Caribbean | Costing Methods | Dynamic Transmission | Cost-Effectiveness Analysis | Infectious Diseases | Health Systems | Economics/Finance | Sub-Saharan Africa | Middle East & North Africa | Asia & Pacific -
ArticlePublication 2017Getting it Right When Budgets are Tight: Prioritizing Responses to HIV Epidemics
Prioritizing investments across health interventions is complicated by the nonlinear relationship between intervention coverage and …
Prioritizing investments across health interventions is complicated by the nonlinear relationship between intervention coverage and epidemiological outcomes. It can be difficult for countries to know which interventions to prioritize for greatest epidemiological impact, particularly when budgets are uncertain.The authors examined four case studies of HIV epidemics in diverse settings, each with different characteristics. These case studies were based on public data available for Belarus, Peru, Togo, and Myanmar. The Optima HIV model and software package…
Priority Setting/Ethics | Mathematical Models | Health/Medicine | Latin America & Caribbean | Costing Methods | Cost-Effectiveness Analysis | Infectious Diseases | Health Systems | Economics/Finance | Sub-Saharan Africa | Middle East & North Africa | Asia & Pacific -
ArticlePublication 2016Country-Level Cost-Effectiveness Thresholds
This article estimates the cost-effectiveness thresholds (CETs) for health interventions in several low and middle-income …
This article estimates the cost-effectiveness thresholds (CETs) for health interventions in several low and middle-income countries (LMICs), based on opportunity costs. When there are constraints on a health care system’s budget or ability to increase expenditures, additional costs imposed by interventions have an “opportunity cost” in terms of the health foregone because other interventions cannot be provided. The authors argue that cost-effectiveness thresholds should reflect health opportunity cost and aim to calculate these in four…
Priority Setting/Ethics | Health/Medicine | Europe | Latin America & Caribbean | Cost-Effectiveness Analysis | Health Systems | Economics/Finance | Sub-Saharan Africa | Middle East & North Africa | Asia & Pacific -
ArticlePublication 2013Estimated Mortality Impact of Vaccinations 2011–2020 in 73 GAVI Alliance Countries
From August to December 2011, a multidisciplinary group with expertise in mathematical modeling was constituted …
From August to December 2011, a multidisciplinary group with expertise in mathematical modeling was constituted by the GAVI Alliance and the Bill & Melinda Gates Foundation to estimate the impact of vaccination in 73 countries supported by the GAVI Alliance. The number of deaths averted in persons projected to be vaccinated during 2011–2020 was estimated for ten antigens: hepatitis B, yellow fever, Haemophilus influenzae type B (Hib), Streptococcus pneumoniae, rotavirus, Neisseria meningitidis serogroup A, Japanese…
Microsimulation | Mathematical Models | Health/Medicine | Latin America & Caribbean | Health Outcomes | State-Transition | Dynamic Transmission | Infectious Diseases | Global Governance | Economics/Finance | Science/Technology | Sub-Saharan Africa | Middle East & North Africa | Asia & Pacific -
ArticlePublication 2008Development of an Empirically Calibrated Model of Gastric Cancer in Two High-Risk Countries
This paper presents an empirically calibrated mathematical model of gastric cancer and H. pylori in …
This paper presents an empirically calibrated mathematical model of gastric cancer and H. pylori in China and Colombia to provide qualitative insight into the cost-effectiveness of gastric cancer prevention strategies. Despite studies that have established the relationship between Helicobacter pylori and gastric cancer and H. pylori treatment reducing cancer incidence among individuals without preexisting precancerous lesions, screening for H. pylori is still being debated. The authors synthesized…!--?xml:namespace prefix = "o" ns = "urn:schemas-microsoft-com:office:office" /-->
Microsimulation | Mathematical Models | Health/Medicine | Latin America & Caribbean | Calibration/Validation | Infectious Diseases | Chronic Disease/Risk | Asia & Pacific -
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 | Health/Medicine | Latin America & Caribbean | Calibration/Validation | Infectious Diseases | Chronic Disease/Risk -
ArticlePublication 2022Spatial-Mechanistic Model to Estimate Sub-National Tuberculosis Burden in Brazilian Municipalities
Reliable subnational estimates of TB incidence are needed to focus disease control resources in areas …
Reliable subnational estimates of TB incidence are needed to focus disease control resources in areas of highest need. This study developed an approach for generating small area estimates of TB incidence, and the fraction of individuals missed by routine case detection, based on available notification and mortality data. The approach is demonstrated by estimating TB outcomes for 5568 municipalities in Brazil, revealing substantial subnational differences in disease burden and other metrics useful for designing high-impact…
Mathematical Models | Health/Medicine | Latin America & Caribbean | Health Outcomes | Infectious Diseases -
ArticlePublication 2018HTA and MCDA Solely or Combined? The Case of Priority-Setting in Colombia
Given the limited resources available worldwide, healthcare systems face problems of justice and efficiency related …
Given the limited resources available worldwide, healthcare systems face problems of justice and efficiency related to setting priorities. Two methods, Health Technology Assessment (HTA) and Multi-Criteria Decision Analysis (MCDA) have emerged as tools to assist in informed decision-making, but both have advantages and disadvantages. Colombia established a Health Technology Assessment Institute in 2012. The authors discuss challenges faced by the Colombian health system, characteristics of HTA in Colombia and the potential benefits and drawbacks of…
Priority Setting/Ethics | Health/Medicine | Latin America & Caribbean | Cost-Effectiveness Analysis | Health Systems | Policy/Regulation