Mark M. Bissell
- COVID-19 Clinical Research Studies
- COVID-19 and healthcare impacts
- Long-Term Effects of COVID-19
- COVID-19 Impact on Reproduction
- Data-Driven Disease Surveillance
- Maternal and fetal healthcare
- Sepsis Diagnosis and Treatment
- Machine Learning in Healthcare
- Healthcare cost, quality, practices
- COVID-19 diagnosis using AI
- Ovarian function and disorders
- COVID-19 epidemiological studies
- Heparin-Induced Thrombocytopenia and Thrombosis
- Mobile Health and mHealth Applications
- Hemophilia Treatment and Research
- Reproductive Biology and Fertility
- Venous Thromboembolism Diagnosis and Management
- Global Cancer Incidence and Screening
- Chronic Disease Management Strategies
- Healthcare Systems and Challenges
- Body Contouring and Surgery
- Chronic Obstructive Pulmonary Disease (COPD) Research
- Telemedicine and Telehealth Implementation
- Cardiac, Anesthesia and Surgical Outcomes
- Maternal Mental Health During Pregnancy and Postpartum
Collaborative Research Group
2024
Cohort (United Kingdom)
2024
The National COVID Cohort Collaborative (N3C) is a centralized, harmonized, high-granularity electronic health record repository that the largest, most representative COVID-19 cohort to date. This multicenter data set can support robust evidence-based development of predictive and diagnostic tools inform clinical care policy.
The majority of U.S. reports COVID-19 clinical characteristics, disease course, and treatments are from single health systems or focused on one domain. Here we report the creation National COVID Cohort Collaborative (N3C), a centralized, harmonized, high-granularity electronic record repository that is largest, most representative cohort cases controls to date. This multi-center dataset supports robust evidence-based development predictive diagnostic tools informs critical care policy.In...
Abstract Objective In response to COVID-19, the informatics community united aggregate as much clinical data possible characterize this new disease and reduce its impact through collaborative analytics. The National COVID Cohort Collaborative (N3C) is now largest publicly available HIPAA limited dataset in US history with over 6.4 million patients a testament partnership of 100 organizations. Materials Methods We developed pipeline for ingesting, harmonizing, centralizing from 56...
Prior observational studies suggest that aspirin use may be associated with reduced mortality in high-risk hospitalized patients COVID-19, but aspirin's efficacy moderate COVID-19 is not well studied.To assess whether early lower odds of in-hospital COVID-19.Observational cohort study 112 269 enrolled from January 1, 2020, through September 10, 2021, at 64 health systems the United States participating National Institute Health's COVID Cohort Collaborative (N3C).Aspirin within first day...
Abstract Objective The goals of this study were to harmonize data from electronic health records (EHRs) into common units, and impute units that missing. Materials Methods National COVID Cohort Collaborative (N3C) table laboratory measurement data—over 3.1 billion patient over 19 000 unique concepts in the Observational Medical Outcomes Partnership (OMOP) common-data-model format 55 partners. We grouped ontologically similar OMOP together for 52 variables relevant COVID-19 research,...
Abstract Objectives To define pregnancy episodes and estimate gestational age within electronic health record (EHR) data from the National COVID Cohort Collaborative (N3C). Materials Methods We developed a comprehensive approach, named Hierarchy rule-based episode Inference integrated with Pregnancy Progression Signatures (HIPPS), applied it to EHR in N3C (January 1, 2018–April 7, 2022). HIPPS combines: (1) an extension of previously published algorithm, (2) novel algorithm detect...
Abstract Objective This study sought to evaluate whether synthetic data derived from a national coronavirus disease 2019 (COVID-19) dataset could be used for geospatial and temporal epidemic analyses. Materials Methods Using an original (n = 1 854 968 severe acute respiratory syndrome 2 tests) its derivative, we compared key indicators of COVID-19 community spread through analysis aggregate zip code-level curves, patient characteristics outcomes, distribution tests by code, indicator counts...
Patients with coronavirus disease 2019 (COVID-19) often experience persistent symptoms, known as postacute sequelae of COVID-19 or long COVID, after severe acute respiratory syndrome 2 (SARS-CoV-2) infection. Chronic lung (CLD) has been identified in small-scale studies a potential risk factor for COVID. This large-scale retrospective cohort study using the National COVID Cohort Collaborative data evaluated link between CLD and over 6 months SARS-CoV-2 We included adults (aged ≥18 years) who...
Importance Understanding whether there are racial and ethnic residential disparities in prenatal telehealth uptake is necessary for ensuring equitable access guiding implementation of future hybrid (ie, both in-person) care. Objective To assess temporal changes individuals using care before during the COVID-19 public health emergency (PHE) by race ethnicity residence location US. Design, Setting, Participants This retrospective cohort study analyzed electronic record data visits from...
Exogenous estrogen is associated with reduced coronavirus disease (COVID) mortality in nonimmunosuppressed/immunocompromised (non-ISC) postmenopausal females. Here, we examined the association of or testosterone hormone replacement therapy (HRT) COVID outcomes solid organ transplant recipients (SOTRs) compared to non-ISC individuals, given known differences sex-based risk these populations. SOTRs ≥45 years old COVID-19 between April 1, 2020 and July 31, 2022 were identified using National...
Abstract Background Anticoagulation (AC) utilization patterns and their predictors among hospitalized coronavirus disease 2019 (COVID-19) patients have not been well described. Methods Using the National COVID Cohort Collaborative, we conducted a retrospective cohort study (2020–2022) to assess AC use identify factors associated with therapeutic employing modified Poisson regression. Results Among 162 842 COVID-19 patients, 64% received 24% AC. Therapeutic declined from 32% in 2020 12% 2022,...
Abstract Objective To determine the impact of acute SARS-CoV-2 infection on patient with concomitant active cancer and CVD. Methods The researchers extracted analyzed data from National COVID Cohort Collaborative (N3C) database between January 1, 2020, July 22, 2022. They included only patients infection, defined as a positive test by PCR 21 days before 5 after day index hospitalization. Active cancers were last drug administered within 30 admission. “Cardioonc” group consisted CVD cancers....
The COVID-19 pandemic has changed the delivery of surgical care.Early in pandemic, an association between SARS-CoV-2 infection and adverse postoperative outcomes prompted implementation risk mitigation strategies, including routine asymptomatic testing postponement procedures 1-3 .In May 2023, WHO declared end to global public health emergency; however, disease's implications with regard perioperative care persist.As novel variants emerge, understanding influence reinfection on is important...
We propose and validate a domain knowledge-driven classification model for diagnosing post-acute sequelae of SARS-CoV-2 infection (PASC), also known as Long COVID, using Electronic Health Records (EHRs) data.
ObjectiveThe effects of Coronavirus disease 2019 (COVID-19) infection and altered processes care on nonelective coronary artery bypass grafting (CABG) outcomes remain unknown. We hypothesized that patients with COVID-19 would have longer hospital lengths stay greater mortality compared COVID-negative patients, but these not differ between pre-COVID controls.MethodsThe National COVID Cohort Collaborative 2020-2022 was queried for adult undergoing CABG. Patients were divided into...