Resources Repository
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ArticlePublication 2017Misinformation Lingers in Memory: Failure of Three Pro-Vaccination Strategies
People's inability to update their memories in light of corrective information may have important public …
People's inability to update their memories in light of corrective information may have important public health consequences, as in the case of vaccination choice. The authors compare three potentially effective strategies in vaccine promotion: (1) one contrasting myths vs. facts, (2) one employing fact and icon boxes, and (3) one showing images of non-vaccinated sick children. Beliefs in the autism/vaccines link and in vaccines side effects, along with intention to vaccinate a future child, were…
Decision Psychology | Health/Medicine | Infectious Diseases | Preferences/Values | Child/Nutrition | Culture/Society | Government/Law | Science/Technology | North America -
ArticlePublication 2018Addressing Health-Related Misinformation on Social Media
Policy makers and the social media industry grapple with the challenge of curbing fake news, …
Policy makers and the social media industry grapple with the challenge of curbing fake news, disinformation, and hate speech; and the field of medicine is similarly confronted with the spread of false, inaccurate, or incomplete health information. This viewpoint argues that medical, public health, social science, and computer science experts must begin working together via interdisciplinary research to address health misinformation on social media, with a focus on the following four themes: (1) defining the…
Decision Psychology | Health/Medicine | Social Determinants | Culture/Society | Science/Technology | North America -
ArticlePublication 2020Bayes' Theorem, COVID-19, and Screening Tests
This article reviews the implications of increased testing for COVID-19 using reverse transcriptase polymerase chain …
This article reviews the implications of increased testing for COVID-19 using reverse transcriptase polymerase chain reaction (rRT-PCR) through the application of Bayes’ Theorem for three hypothetical, stylized case scenarios. The scenarios involve three patients with a low, moderate, and high pre-test probability of COVID-19 infection. The category of low probability would include "asymptomatic individuals in a presumed low prevalence environment" and might vary from 10 to 20%. The category of moderate probability would include "individuals…
Test Performance | Health/Medicine | Infectious Diseases | Probability/Bayes | Clinical Care -
ArticlePublication 2020Interpreting COVID-19 Test Results: A Bayesian Approach
This article considers the following question with respect to interpreting the results of polymerase chain reaction …
This article considers the following question with respect to interpreting the results of polymerase chain reaction (PCR) assays from nasal and pharyngeal swabs for COVID-19 to inform clinical decision making: "While a positive result in an acutely ill patient is straightforward, how should physicians interpret negative tests in patients with suspected COVID-19 infection?" Using an assumption of near-perfect specificity of PCR assays for COVID-19, the authors acknowledge the uncertainty of test sensitivity. They consider two clinical scenarios…
Test Performance | Health/Medicine | Infectious Diseases | Probability/Bayes | Science/Technology | Global -
ArticlePublication 2019Systematic Review of Economic Evaluations of Vaccination Strategies Against Tuberculosis
Bacillus Calmette-Guérin (BCG) is the only licensed vaccine for tuberculosis, but its effectiveness is limited …
Bacillus Calmette-Guérin (BCG) is the only licensed vaccine for tuberculosis, but its effectiveness is limited and varies by age, so a valid cost-effectiveness study is needed to assist decision-makers in the implementation of cost-effective strategies for BCG vaccination. Using the Quality of Health Economic Studies (QHES) instrument, the authors assessed the quality of published studies involving economic evaluations of BCG vaccination strategies in a variety of regions, target populations, and vaccine types. Most of the…
Evidence Synthesis | Health/Medicine | Infectious Diseases | Mathematical Models | Cost-Effectiveness Analysis | Global -
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…
Costing Methods | Health/Medicine | Infectious Diseases | Priority Setting/Ethics | Mathematical Models | Dynamic Transmission | Cost-Effectiveness Analysis | Health Systems | Economics/Finance | Sub-Saharan Africa | Middle East & North Africa | Latin America & Caribbean | Asia & Pacific -
ArticleWeb Portal 2017PLOS Collection: Economic Efficiency of HIV Services
In order to maximize the value for money for HIV services and increase efficiency without …
In order to maximize the value for money for HIV services and increase efficiency without sacrificing quality, robust and up-to-date data on costs, efficiency and its determinants are needed. This PLOS collection, Economic Efficiency of HIV Services, presents recent, high-quality evidence from low- and middle-income countries on costs and technical efficiency of HIV services and their determinants. These data contribute to the current discussion on optimizing resources for HIV services and can provide programmatic guidance for…
Costing Methods | Health/Medicine | Infectious Diseases | Priority Setting/Ethics | Cost-Effectiveness Analysis | Operations Research | Economics/Finance | Sub-Saharan Africa | Middle East & North Africa | Latin America & Caribbean | Asia & Pacific -
ArticlePublication 2017Changing the South African National ART Guidelines: The Role of Cost Modelling
This analysis was motivated by the South African Department of Health's request to assess the …
This analysis was motivated by the South African Department of Health's request to assess the cost implications of adopting sets of ART guidelines issued by the World Health Organization between 2010 and 2016.Using data from large South African ART clinics (n = 24,244 patients), projections of patients in need of ART, and cost data from bottom-up cost analyses, the authors constructed a population-level health-state transition model with 6-monthly transitions between health states depending on patients’ age,…
Costing Methods | Health/Medicine | Infectious Diseases | State-Transition | Health Systems | Clinical Care | Economics/Finance | Sub-Saharan Africa -
ArticlePublication 2017Cost-Effectiveness of Testing and Treatment for Latent TB
Testing for and treating latent tuberculosis infection (LTBI) is among the main strategies to achieve …
Testing for and treating latent tuberculosis infection (LTBI) is among the main strategies to achieve TB elimination in the United States. This analysis estimated health outcomes, costs, and cost-effectiveness of LTBI testing and treatment among non-US born residents with and without medical comorbidities (e.g., diabetes, HIV infection, and end-stage renal disease). A decision analytic tree and Markov cohort simulation model was used to compare the following strategies: no testing, tuberculin skin test (TST), interferon gamma release assay…
Test Performance | Health/Medicine | Infectious Diseases | State-Transition | Microsimulation | Cost-Effectiveness Analysis | Chronic Disease/Risk | Health Systems | Economics/Finance | Global | North America