Amar K. Das
YOU?
Author Swipe
View article: Towards responsible artificial intelligence in healthcare—getting real about real-world data and evidence
Towards responsible artificial intelligence in healthcare—getting real about real-world data and evidence Open
Background The use of real-world data (RWD) in artificial intelligence (AI) applications for healthcare offers unique opportunities but also poses complex challenges related to interpretability, transparency, safety, efficacy, bias, equity…
View article: A Proposed Statistical Approach for Conducting a Longitudinal Assessment of Circulating Tumor DNA
A Proposed Statistical Approach for Conducting a Longitudinal Assessment of Circulating Tumor DNA Open
As circulating tumor DNA (ctDNA) may reflect cancer progression, understanding its temporal evolution can inform clinical decision-making in precision oncology. Temporal changes in ctDNA often exhibit complex patterns, varying significantl…
View article: Biochemistry a non-diseases with environment editing model
Biochemistry a non-diseases with environment editing model Open
View article: Population health outcomes of blood-based screening for colorectal cancer in comparison to current screening modalities: insights from a discrete-event simulation model incorporating longitudinal adherence
Population health outcomes of blood-based screening for colorectal cancer in comparison to current screening modalities: insights from a discrete-event simulation model incorporating longitudinal adherence Open
The CAN-SCREEN model demonstrates that amongst non-invasive CRC screening strategies, those with higher adherence yield more favorable health outcomes as measured by CRC deaths averted, CRC cases averted, and LYG.
View article: Hospitalization Among Patients Treated With Molnupiravir: A Retrospective Study of Administrative Data
Hospitalization Among Patients Treated With Molnupiravir: A Retrospective Study of Administrative Data Open
The majority of patients treated with molnupiravir in early 2022 had at least one risk factor for severe COVID-19 and had comedications that could require treatment modification or monitoring if given a ritonavir-containing regimen. Hospit…
View article: Semantically enabling clinical decision support recommendations
Semantically enabling clinical decision support recommendations Open
Background Clinical decision support systems have been widely deployed to guide healthcare decisions on patient diagnosis, treatment choices, and patient management through evidence-based recommendations. These recommendations are typicall…
View article: Predicting Measles Outbreaks in the United States: Evaluation of Machine Learning Approaches
Predicting Measles Outbreaks in the United States: Evaluation of Machine Learning Approaches Open
Background Measles, a highly contagious viral infection, is resurging in the United States, driven by international importation and declining domestic vaccination coverage. Despite this resurgence, measles outbreaks are still rare events t…
View article: Prediction of persistent chronic cough in patients with chronic cough using machine learning
Prediction of persistent chronic cough in patients with chronic cough using machine learning Open
Introduction The aim of this study was to develop and validate prediction models for risk of persistent chronic cough (PCC) in patients with chronic cough (CC). This was a retrospective cohort study. Methods Two retrospective cohorts of pa…
View article: Comorbidity Burden in Patients with Covid-19 Treated with Molnupiravir in the United States
Comorbidity Burden in Patients with Covid-19 Treated with Molnupiravir in the United States Open
View article: Supporting diabetic self-management behaviors during the COVID-19 pandemic
Supporting diabetic self-management behaviors during the COVID-19 pandemic Open
This study provides a qualitative analysis of the effects of the COVID-19 pandemic on the nutritional and physical activity self-management of adults with Type 2 diabetes (T2D). We conducted semi-structured interviews with 21 adults with T…
View article: Planning and Monitoring Equitable Clinical Trial Enrollment Using Goal Programming
Planning and Monitoring Equitable Clinical Trial Enrollment Using Goal Programming Open
Randomized clinical trial (RCT) studies are the gold standard for scientific evidence on treatment benefits to patients. RCT outcomes may not be generalizable to clinical practice if the trial population is not representative of the patien…
View article: Predicting Measles Outbreaks in the United States: Evaluation of Machine Learning Approaches (Preprint)
Predicting Measles Outbreaks in the United States: Evaluation of Machine Learning Approaches (Preprint) Open
BACKGROUND Measles, a highly contagious viral infection, is resurging in the United States, driven by international importation and declining domestic vaccination coverage. Despite this resurgence, measles outbreaks are still rare events …
View article: Computer vision syndrome, musculoskeletal, and stress-related problems among visual display terminal users in Nepal
Computer vision syndrome, musculoskeletal, and stress-related problems among visual display terminal users in Nepal Open
Background The use of computers and other Visual Display Terminal (VDT) screens is increasing in Nepal. However, there is a paucity of evidence on the prevalence of Computer Vision Syndrome (CVS) and other occupational health concerns amon…
View article: Risk Factors for Persistent Chronic Cough During Consecutive Years: A Retrospective Database Analysis
Risk Factors for Persistent Chronic Cough During Consecutive Years: A Retrospective Database Analysis Open
Knowledge of the independent risk factors associated with PCC should aid clinicians in identifying such patients and improve their management.
View article: Assessing the Association Between Network-based Provider Communities and Patient Mortality in the Medicare Population with Multiple Chronic Conditions.
Assessing the Association Between Network-based Provider Communities and Patient Mortality in the Medicare Population with Multiple Chronic Conditions. Open
Understanding the complexity of care delivery and care coordination for patients with multiple chronic conditions is challenging. Network analysis can model the relationship between providers and patients to find factors associated with pa…
View article: 1344. Predicting Measles Outbreaks in the United States: Application of Different Modeling Approaches
1344. Predicting Measles Outbreaks in the United States: Application of Different Modeling Approaches Open
Background Although measles is still rare in the United States (U.S.), there have been recent resurgent outbreaks in the U.S. To improve the accuracy of prediction given the rarity of measles events, we used machine learning (ML) algorithm…
View article: Quantifying representativeness in randomized clinical trials using machine learning fairness metrics
Quantifying representativeness in randomized clinical trials using machine learning fairness metrics Open
Objective We help identify subpopulations underrepresented in randomized clinical trials (RCTs) cohorts with respect to national, community-based or health system target populations by formulating population representativeness of RCTs as a…
View article: Quantifying representativeness in randomized clinical trials using machine learning fairness metrics
Quantifying representativeness in randomized clinical trials using machine learning fairness metrics Open
Objective We formulate population representativeness of randomized clinical trials (RCTs) as a machine learning (ML) fairness problem, derive new representation metrics, and deploy them in visualization tools which help users identify subp…
View article: An Audio Personal Health Library of Clinic Visit Recordings for Patients and Their Caregivers (HealthPAL): User-Centered Design Approach
An Audio Personal Health Library of Clinic Visit Recordings for Patients and Their Caregivers (HealthPAL): User-Centered Design Approach Open
Background Providing digital recordings of clinic visits to patients has emerged as a strategy to promote patient and family engagement in care. With advances in natural language processing, an opportunity exists to maximize the value of v…
View article: Comparison of Methods to Reduce Bias From Clinical Prediction Models of Postpartum Depression
Comparison of Methods to Reduce Bias From Clinical Prediction Models of Postpartum Depression Open
Clinical prediction models trained on potentially biased data may produce unfair outcomes on the basis of the chosen metrics. This study's results suggest that the performance varied depending on the model, outcome label, and method for re…
View article: Natural Language Processing for Automated Annotation of Medication Mentions in Primary Care Visit Conversations
Natural Language Processing for Automated Annotation of Medication Mentions in Primary Care Visit Conversations Open
Objectives The objective of this study is to build and evaluate a natural language processing approach to identify medication mentions in primary care visit conversations between patients and physicians. Materials and Methods Eight clinici…
View article: An Audio Personal Health Library of Clinic Visit Recordings for Patients and Their Caregivers (HealthPAL): User-Centered Design Approach (Preprint)
An Audio Personal Health Library of Clinic Visit Recordings for Patients and Their Caregivers (HealthPAL): User-Centered Design Approach (Preprint) Open
BACKGROUND Providing digital recordings of clinic visits to patients has emerged as a strategy to promote patient and family engagement in care. With advances in natural language processing, an opportunity exists to maximize the value of …
View article: Explanation Ontology in Action: A Clinical Use-Case
Explanation Ontology in Action: A Clinical Use-Case Open
We addressed the problem of a lack of semantic representation for user-centric explanations and different explanation types in our Explanation Ontology (https://purl.org/heals/eo). Such a representation is increasingly necessary as explain…
View article: Evaluating artificial intelligence in medicine: phases of clinical research
Evaluating artificial intelligence in medicine: phases of clinical research Open
Increased scrutiny of artificial intelligence (AI) applications in healthcare highlights the need for real-world evaluations for effectiveness and unintended consequences. The complexity of healthcare, compounded by the user- and context-d…
View article: The Semantic Data Dictionary – An Approach for Describing and Annotating Data
The Semantic Data Dictionary – An Approach for Describing and Annotating Data Open
It is common practice for data providers to include text descriptions for each column when publishing data sets in the form of data dictionaries. While these documents are useful in helping an end-user properly interpret the meaning of a c…
View article: Anonymizing Data for Privacy-Preserving Federated Learning
Anonymizing Data for Privacy-Preserving Federated Learning Open
Federated learning enables training a global machine learning model from data distributed across multiple sites, without having to move the data. This is particularly relevant in healthcare applications, where data is rife with personal, h…
View article: Explanation Ontology: A Model of Explanations for User-Centered AI
Explanation Ontology: A Model of Explanations for User-Centered AI Open
View article: Knowledge Extraction of Cohort Characteristics in Research Publications.
Knowledge Extraction of Cohort Characteristics in Research Publications. Open
When healthcare providers review the results of a clinical trial study to understand its applicability to their practice, they typically analyze how well the characteristics of the study cohort correspond to those of the patients they see.…
View article: Differential Privacy-enabled Federated Learning for Sensitive Health Data
Differential Privacy-enabled Federated Learning for Sensitive Health Data Open
Leveraging real-world health data for machine learning tasks requires addressing many practical challenges, such as distributed data silos, privacy concerns with creating a centralized database from person-specific sensitive data, resource…
View article: Hierarchical patient-centric caregiver network method for clinical outcomes study
Hierarchical patient-centric caregiver network method for clinical outcomes study Open
In clinical outcome studies, analysis has traditionally been performed using patient-level factors, with minor attention given to provider-level features. However, the nature of care coordination and collaboration between caregivers (provi…