Resources Repository
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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 -
ReportPublication 2018Understanding the Economics of Microbial Threats: Proceedings of a Workshop
This report follows a June 2018, Forum on Microbial Threats that was held at the …
This report follows a June 2018, Forum on Microbial Threats that was held at the National Academies of Sciences, Engineering, and Medicine. This was a 1.5-day public workshop with the goal being an assessment of the current understanding of the interaction of infectious disease threats and economic activity in order to suggest future areas of research. This workshop built on prior work of the Forum and aimed to build more mutual understanding between those in…
Clinical Care | Health Outcomes | Evidence Synthesis | Technology Assessment | Infectious Diseases | Policy/Regulation | Global Governance | Business/Industry | Economics/Finance | Health/Medicine | Global -
ArticlePublication 2017Costing of National STI Program Implementation, 2016-2021
In 2016 the World Health Assembly adopted the Global Strategy on Sexually Transmitted Infections (STI) …
In 2016 the World Health Assembly adopted the Global Strategy on Sexually Transmitted Infections (STI) 2016–2021 aiming to reduce curable STIs by 90% by 2030. This analysis costed scaling-up priority interventions to achieve coverage targets. Strategy-targeted declines in Chlamydia trachomatis, Neisseria gonorrhoeae, Treponema pallidum and Trichomonas vaginalis were applied to WHO-estimated regional burdens at 2012 levels. Case management was costed for the curable STIs, symptomatic Herpes Simplex Virus 2 (HSV-2), and non-STI vaginal syndromes, with incrementally expanding diagnoses. Service…
Clinical Care | Costing Methods | Evidence Synthesis | Infectious Diseases | Economics/Finance | Health/Medicine | Global -
ArticlePublication 2016An Extended CEA of Schizophrenia Treatment in India under Universal Public Finance
This paper evaluates the potential health and financial risk protection effects of a policy of …
This paper evaluates the potential health and financial risk protection effects of a policy of universal public finance (UPF) to treating schizophrenia in India. The study uses the extended cost effectiveness analysis framework across income quintiles. The results show financial protection benefits concentrated in the richest income quintiles, while health gains were concentrated among the poorest. The value of insurance is highest for the poorest income and decreases as the household income increases. In settings…
Priority Setting/Ethics | Clinical Care | Costing Methods | Cost-Effectiveness Analysis | Mental Health | Health Systems | Culture/Society | Economics/Finance | Health/Medicine | Asia & Pacific -
ArticlePublication 2015Cancer Models and Real-World Data: Better Together
Decision-analytic models synthesize available data on disease burden and intervention effectiveness to project estimates of …
Decision-analytic models synthesize available data on disease burden and intervention effectiveness to project estimates of the long-term consequences of care. While models have been influential in informing US cancer screening guidelines under ideal conditions, incorporating detailed data on real-world screening practice has been limited given the complexity of screening processes and behaviors throughout diverse health delivery systems in the United States. The authors describe the synergies that exist between decision-analytic models and health care utilization…
Calibration/Validation | Clinical Care | Evidence Synthesis | Mathematical Models | Chronic Disease/Risk | Health Systems | Health/Medicine | Science/Technology | North America -
Tutorial/PrimerPublication, Teaching Resource 2024Tutorial: Building Decision Trees
This tutorial illustrates the basic steps needed to develop decision trees in Amua using a …
This tutorial illustrates the basic steps needed to develop decision trees in Amua using a disease screening example. It details the process of how to build the structure of a decision tree, parameterize the model with probabilities and relevant outcomes (i.e., life expectancy), evaluate three alternative screening strategies in a baseline scenario, and perform one-way sensitivity analyses to assess the robustness of the results to different parameter values. Amua, the Swahili word meaning “decide”/“solve”, is…
Probability/Bayes | Clinical Care | Mathematical Models | Decision Analysis | Health/Medicine | Graduate | Doctoral | Professional -
ArticlePublication 2013Modeling the Effectiveness of Initial Management Strategies for Ductal Carcinoma in Situ
This paper compares alternative strategies to manage ductal carcinoma in situ (DCIS). The authors used …
This paper compares alternative strategies to manage ductal carcinoma in situ (DCIS). The authors used a disease simulation model to simulate the clinical events after six treatments (lumpectomy alone, lumpectomy with radiation, lumpectomy with radiation and tamoxifen, lumpectomy with tamoxifen, and mastectomy with and without breast reconstruction). Outcomes included disease-free, invasive disease-free, overall survival and breast preservation. Data were from the published literature. The results showed that for women aged 45 years at diagnosis, both mastectomy…
Clinical Care | Health Outcomes | Decision Analysis | Health/Medicine -
ArticlePublication 2023Performance of Rapid Antigen Tests to Detect Symptomatic and Asymptomatic SARS-CoV-2 Infection
The objective of this study was to evaluate the performance of rapid antigen tests (Ag-RDTs) …
The objective of this study was to evaluate the performance of rapid antigen tests (Ag-RDTs) for detection of SARS-CoV-2 among symptomatic and asymptomatic participants. The general findings were that the performance of Ag-RDTs was optimized when asymptomatic participants tested 3 times at 48-hour intervals and when symptomatic participants tested 2 times separated by 48 hours. Participants completed Ag-RDTs and reverse transcriptase polymerase chain reaction (RT-PCR) testing for SARS-CoV-2 every 48 hours for 15 days. They…
Test Performance | Clinical Care | Infectious Diseases | Health/Medicine | Science/Technology | North America -
ArticlePublication 2020Variation in False-Negative Rate of Reverse Transcriptase Polymerase Chain Reaction-Based SARS-CoV-2 Tests by Time Since Exposure
This study aimed to determine the false-negative rate of RT-PCR tests for SARS-CoV-2 infection based …
This study aimed to determine the false-negative rate of RT-PCR tests for SARS-CoV-2 infection based on the timeline of exposure and symptom onset. Drawing from data in seven studies involving 1,330 upper respiratory tract samples, a Bayesian model was used to estimate these rates. Findings showed that in the initial four days prior to typical symptom onset, the false-negative rate decreased from 100% on day 1 to 67% on day 4. By the day of…
Test Performance | Clinical Care | Infectious Diseases | Health/Medicine | Science/Technology | North America