Resources Repository
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ArticlePublication 2021Individual and Social Determinants of COVID-19 Vaccine Uptake
This article examined the individual, communication and social determinants associated with COVID-19 vaccine uptake using …
This article examined the individual, communication and social determinants associated with COVID-19 vaccine uptake using national survey data collected before vaccines were available in the U.S. Of note, individuals under the federal poverty level and racial and ethnic minorities were oversampled. Outcomes included the likelihood of vaccinating self and dependents (e.g., children). Independent variables included perceptions of risk, exposure to different media for COVID-19 news, political party identification, confidence in scientists and social determinants of…
Evidence Synthesis | Health Outcomes | Infectious Diseases | Social Determinants | Policy/Regulation | Clinical Care | Culture/Society | Health/Medicine | 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…
Probability/Bayes | Test Performance | Infectious Diseases | Clinical Care | Health/Medicine -
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…
Probability/Bayes | Test Performance | Infectious Diseases | Health/Medicine | Science/Technology | Global -
ArticlePublication 2020Weighing Evidence to Inform Clinical Decisions
The authors use a clinical example to simulate how treatment discussions can be complicated when new evidence is introduced …
The authors use a clinical example to simulate how treatment discussions can be complicated when new evidence is introduced that conflicts with existing guidelines. Even when evidence is consistent, the authors point out that current guidelines can have interpretations that don't agree with available evidence. They develop a step-wise algorithm to help guide individual clinical decisions even in the absence of general consensus related to appropriate testing and treatment.
Evidence Synthesis | Priority Setting/Ethics | Clinical Care | Health/Medicine -
ArticlePublication 2020Translating Population Evidence to Individual Patients
In this paper, the authors describe the differences in population level outcomes compared to individual …
In this paper, the authors describe the differences in population level outcomes compared to individual patients and discuss ways that these are differences. The authors cover topics including the difference between relative and absolute risk and benefit. They use an example of the decision to start anticoagulation in new-onset atrial fibrillation to discuss translating population level evidence to treatment of an individual. These options include generalizability, subgroup analysis, prediction rules, following response to therapy, and even…
Evidence Synthesis | Test Performance | Health Systems | Clinical Care | Health/Medicine -
ArticlePublication 2020Clinical Decision Making: Using a Diagnostic Test
This article is part of a 6-part series on clinical decision making. The authors use …
This article is part of a 6-part series on clinical decision making. The authors use two clinical examples to review the principles of interpreting diagnostic test results. They outline an approach that can be used to determine how to select and apply tests and their results to the practice of internal medicine. Topics covered in the two case studies include sensitivity and specificity, positive predictive and negative predictive value of tests, and how to estimate…
Probability/Bayes | Test Performance | Clinical Care | Health/Medicine -
ArticlePublication 2020Premature Deaths, Statistical Lives, and Years of Life
This article clarifies some misconceptions about mortality risk and economic valuation. The mortality effects of …
This article clarifies some misconceptions about mortality risk and economic valuation. The mortality effects of exposure to environmental hazards such as air pollution are often described by the estimated number of “premature deaths” and the economic value of an exposure reduction as the number of “statistical lives saved” multiplied by the “value per statistical life.” These terms can be misleading because the number of deaths advanced by exposure cannot be determined from mortality data; it…
Preferences/Values | Health Outcomes | Benefit-Cost Analysis | Environmental Health | Policy/Regulation | College | Graduate | Critical Thinking/Analysis -
ArticlePublication 2017Extended Cost-Effectiveness Analyses of Cardiovascular Risk Factor Reduction Policies
This chapter summarizes lessons learned from three extended cost-effectiveness analyses (ECEAs) conducted on cardiovascular disease …
This chapter summarizes lessons learned from three extended cost-effectiveness analyses (ECEAs) conducted on cardiovascular disease (CVD) risk factor reduction policies, specifically highlighting new insights into the differential impacts of well-established CVD prevention interventions. Tobacco taxation, salt reduction, and primary prevention of CVD in high-risk individuals remain widely regarded as best buys in global noncommunicable disease policy, and the ECEAs confirm the findings of previous CEAs, namely, that these interventions will likely result in large health…
Evidence Synthesis | Priority Setting/Ethics | Cost-Effectiveness Analysis | Chronic Disease/Risk | Health/Medicine | Global -
BookPublication 2019Non-Communicable Disease Prevention: Best Buys, Wasted Buys, Contestable Buys
Non-communicable diseases (NCDs) are the leading cause of death worldwide, and the majority of these …
Non-communicable diseases (NCDs) are the leading cause of death worldwide, and the majority of these deaths occur in low- and middle-income countries. This book provides practical guidelines and lessons learned through real-world case studies. It is intended to be informative to NCD program managers, policy officers and decision-makers in low- and middle-income countries, who need to comparatively assess interventions for the prevention and control of NCDs.The authors emphasize the importance of context in NCD control…
Priority Setting/Ethics | Technology Assessment | Cost-Effectiveness Analysis | Infectious Diseases | Chronic Disease/Risk | Health Systems | Policy/Regulation | Health/Medicine | Global