Medicine and Health Sciences Commons^™

Comparative Evaluation Of Maxillary Partial Denture Frameworks Additively Manufactured With Different 3d Printing Techniques, Basma Refaat Fayad, Islam Heiba Dr, Eman Gamal Abdelghaffar, Ayman Hany Amin

Dentistry

Objectives: To compare the accuracy of fit, surface roughness, and microstructure of cobalt chromium (Co-Cr) maxillary removable partial denture (RPD) frameworks fabricated using direct metal laser melting (DMLS) and selective laser melting (SLM). Methods: A custom Kennedy Class II maxillary partial edentulous resin model was digitally scanned, and a virtual RPD framework was designed. Frameworks were fabricated using DMLS (Co-Cr, n = 8) and SLM (Co-Cr, n = 8), while a control group was produced using a hybrid digital-conventional protocol by lost-wax casting (CAST-Co- Cr, n = 8), in total 24 frameworks. Overall and point comparison adaptation was assessed using …

Llu Dentistry 2025 Winter Edition, Loma Linda University School Of Dentistry

Articulator (Dentistry)

In this issue:

4 | Dean's Message
5 | Transforming the Future of Dental Education: The Strategic Vision and Growth Plan
8 | Honoring a Legacy of Excellence: Celebrating Leif K. Bakland, DDS
12 | Transitions
14 | Welcome New Faculty
16 | Celebrating Excellence in Dentistry: 2025 ICD USA Section Annual Meeting & Convocation
18 | LLUSD faculty publish study on Dental Unit Waterline treatment in the Journal of the American Dental Association
21 | Celebrating 15 Years of PNAM Treatment at LLUSD
23 | A Journey of Healing: Shirely's Transformation
24 | Exploring Future Careers in STEM: The …

12-16-25 Bor Hsc Committee Notice Of Meeting, Patricia Serna

HSC Committee (A subcommittee of the UNM Board of Regents)

12-16-25 BOR HSC Committee Notice of Meeting

Defining The Causal Contribution Of The Gut Microbiota To Cardiomyopathy Pathogenesis As A Basis For Developing Microbiome-Targeted Therapies, Xu Shi

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Heart failure (HF) is a leading cause of morbidity and mortality worldwide, placing substantial clinical and economic burdens on society. Although advances in therapy have improved patient outcomes, the biological mechanisms that drive HF onset and progression remain incompletely understood. Increasing evidence suggests that the gut microbiota, the trillions of microorganisms residing in the gastrointestinal tract, plays a key role in some forms of heart disease, especially cardiovascular disease. Moreover, gut microbial dysbiosis has been associated with systemic inflammation, metabolic imbalance, and immune dysregulation, all of which contribute to the pathophysiology of HF. Cardiomyopathy, a primary disorder of the heart …

Synthesis And Study Of Stable Organic Radicals For Mri Contrast Agents And New Materials, Sabina Dhakal

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

The first part of this dissertation focuses on the design, synthesis, and characterization of a thermally robust S =1/2 phototetrazolinyl monoradical and the development of synthetic methodologies for a high-spin (S = 1) phototetrazolinyl diradical. Electrochemical studies of the phototetrazolium cation (precursor to the monoradical) revealed a remarkably narrow electrochemical band gap (Ecell ≈ 0.82 V), suggesting promising electrical conductivity. Thermal analysis of the monoradical demonstrated excellent stability, with the onset of decomposition at 232 °C. Building on the excellent thermal stability and promising properties for electrical conductivity of the monoradical, we developed two condensation-based synthetic routes that provide viable …

Large-Scale Experimental Study On The Impact Of Air Cleaning & Ventilation On Indoor Air Quality And Student Illness-Related Absenteeism, Daud Nosham

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

This large-scale randomized experimental field study investigated the effect of portable air purifiers (PAPs) on classroom’s air quality and student’s illness related absenteeism. PAPs were installed in 317 classrooms from various school districts located in Eastern Nebraska. The classrooms were randomly assigned into four conditions: three treatment conditions (T1, T2 & T3) and one control condition (device without any filter). T1 was equipped with HEPA filters, T2 added Activated Carbon (AC) layer to HEPA, and T3 further integrated Germicidal Ultraviolet (GUV) alongside HEPA and AC filters. The measured variables were carbon dioxide (CO2), fine particles (PN2.5) and coarse particles (PNcoarse), …

Evaluation And Identification Of Risk Factors For Stress Among Maquiladora Workers Based On The Mexican Official Standard 035 Survey Tool, Andrea Baca Melendez

Open Access Theses & Dissertations

Background and significance: Occupational psychosocial risk factors are workplace conditions that can trigger physiological, emotional, cognitive, and behavioral changes. They are strongly associated with mental health issues such as anxiety and depression, as well as non-mental health conditions like myocardial infarction, stroke, and occupational injuries. Analyzing these risks from a sociodemographic perspective provides valuable insights for improving work environments and workers’ well-being. Purpose: This study aimed to identify and determine the levels of occupational psychosocial risk factors among workers in a manufacturing company in Cd. Juárez, Chihuahua, and to examine their relationship with sociodemographic variables to inform future interventions in …

Exploring Intersectional Risks Of Substance Use Disorder, Mental Health, Hiv/Aids, And Hepatitis C Among Hispanic Adults On The Tx-Mx Border: A Mixed-Methods Study, Md Mohsin

Open Access Theses & Dissertations

Purpose: The purpose of this study was to explore intersectional risks of substance use disorders, mental health, HIV/AIDS, and HCV among Mexican-origin Hispanic adults on the Texas-Mexico border. Methods: The study employed an exploratory sequential mixed-methods approach, which involved collecting and analyzing qualitative data first, followed by quantitative data collection. Selected purposively, 15 in-depth interviews were conducted among the target population. Using convenient sampling, 106 cross-sectional surveys were conducted. Qualitative interview data were analyzed manually using thematic analysis. Quantitative data analyses included univariate descriptive analysis, bivariate, and multivariable penalized logistic regression, negative binomial, and zero-inflated negative binomial regression. Results: The …

Relationships Between Social Determinants Of Health And Pain Outcome Changes After Exercise In Adults With Knee Osteoarthritis, Klarissa Siebert

Open Access Theses & Dissertations

Background: Knee osteoarthritis (KOA) is a common musculoskeletal disease with pain as the primary symptom. KOA pain is a major contributor to disability and reduced quality of life and has been associated with social determinants of health (SDOH) variables. As for treatments of KOA pain, exercise such as stationary cycling is a first-line and recommended treatment. However, limited research has examined how SDOH influence pain outcomes following such interventions. Objective: This study investigated whether income level, education level, employment status, acculturative stress, and perceived ethnic discrimination are associated with changes in pain following a standardized cycling ergometer exercise in adults …

Associations Between School Experiences And Mental Health Outcomes By Gender Identity In Sexual And Gender Minority Youth In Texas And California, 2022 - 2024, Andrea Susana Yanez

Open Access Theses & Dissertations

Background: Depression and anxiety affect populations differently, with diagnoses disproportionately higher among sexual and gender minority groups, including LGBTQ+ youth. School experiences shape mental health; negative environments, bullying, and lack of support worsen outcomes, while affirming policies, peer support, and inclusive curricula are protective. Methods: This secondary analysis of the Family, Housing, and Me (FHAM) Project followed 83 LGBTQ+ youth from South Texas and California's Inland Empire (2022-2024). Data on sociodemographic characteristics, school experiences, and mental health outcomes were collected at baseline and at Waves I and II over 25 months. Analyses included descriptive statistics, monthly comparisons, and bivariate and …

Reduction In Patient Falls: A Quality Improvement Project, Jotis J. Lee

Doctor of Nursing Practice Projects

Patient falls remain one of the most frequent adverse events in hospital settings, leading to injury, prolonged hospital stays, and increased healthcare costs. The identified problem was high fall rates at a specialty hospital. The purpose of this Doctor of Nursing Practice (DNP) quality improvement (QI) project was to evaluate the effectiveness of an evidence-based (EB) educational intervention, using the Fall TIPS (Tailoring Interventions for Patient Safety) toolkit, in improving direct care nursing staff’s knowledge, confidence, and perceived ability to implement fall prevention strategies for high-risk patients. The aim was to improve the nursing staff’s knowledge, confidence, and perceived ability …

Prevalence Of Sleep Disturbances And Factors Associated Among School Going Children In Uganda, A Cross-Sectional Study, Martha Sajatovic

Faculty Scholarship

Background: Sleep disturbances greatly impact children's academic performance and social well-being. This study set out to determine the prevalence of sleep disturbances and factors associated among school going children in Kawempe division, Kampala, Uganda. Methods: In a community cross-sectional study, 548 study participants using random cluster sampling were enrolled. The children start lessons at 8am and end the days classes at 5pm. Random cluster sampling method was used to select participants from the 19 parishes in Kawempe district. Data was collected using a semi-structured questionnaire and Sleep Disturbance Scale for Children (SDSC). Descriptive statistics and multivariate binary logistic regression were …

Dual-Level Pattern Tree For Visual Field Improves Glaucoma Progression And Polygenic Risk Prediction, Luo Song, Lucy Q. Shen, Louis R. Pasquale, Michael V. Boland, Sarah R. Wellik, Carlos Gustavo De Moraes, Ayellet Segre, Janey L. Wiggs, Constance Turman, Jonathan S. Myers, Tobias Elze, Nazlee Zebardast, David S. Friedman, Jae H. Kang, Mengyu Wang

Wills Eye Hospital Papers

PURPOSE: To develop a dual-level pattern tree to characterize visual field (VF) loss subtypes that can be used to better predict glaucoma progression and glaucoma polygenic risk scores (PRSs).

METHODS: This study included 113,030 patients from three datasets, each used for a specific purpose: (1) model training, (2) progression forecasting, and (3) PRS correlations. We applied archetypal analysis to cluster 24-2 VFs into trunk patterns and their branch patterns. The Cox regression model was used to forecast VF progression using mean deviation (MD) slope, MD-fast slope, total deviation (TD) pointwise slope, and visual field index (VFI) slope. Multivariable regression analyses …

The Impact Of Sleep In High-Risk Infants, Ann-Cathrine Neukamm, Mirja Quante, Christian F Poets, Renée A Shellhaas, “Neonatal Sleep Talks (Nest)” Group

2020-Current year OA Pubs

Most of an infant's day is devoted to sleep - and normal sleep is vital to normal brain development. Sleep disruptions may impair overall health, well-being, and neurodevelopment. Disruptors of sleep and circadian health, such as noise, light, respiratory support, and clinical interventions, are highly prevalent in hospital and nursing care facilities. These factors particularly affect infants who already have an increased risk of sleep disorders and their consequences due to an underlying disease. Preterm infants and infants with disorders such as neonatal abstinence syndrome, craniofacial malformations, congenital heart disease, hypoxic-ischemic encephalopathy, Chiari-malformation/myelomeningocele, congenital musculoskeletal disease, and Down syndrome are …

Net Effects Of Correlated Determinants Of Health Among U.S. Older Adults, Haomiao Jia, E I. Lubetkin

Publications and Research

Background

The health effect produced by a contributing factor alone may be different from the effect when other interacting factors are present. The effects of a set of contributors, estimated by regression coefficients, may be invalid or inappropriate if some of the predictors are correlated or the model has interaction and nonlinear terms. The net effect (NE) of a given contributing factor is the effect produced by the factor alone, not by other factors due to their correlations with the factor of interest. This study estimated NE of selected determinants of health for U.S. older adults.

Methods

Participants, aged ≥ …

Unraveling The Links Between Substance Use And Academic Motivation In Higher Education, Melissa Lynn Goins

STEMPS Theses & Dissertations

Self-Determination Theory (SDT) posits that the quality of students’ motivation regulation (i.e., autonomous versus controlled) shapes both learning and health behavior, yet few studies have examined the relations among motivation regulation, alcohol and cannabis use, and achievement. In this study, I surveyed 459 undergraduates at a mid-sized public university in the southeastern United States. Participants completed the Academic Motivation Scale-College version 28 to assess autonomous and controlled motivation regulation, a typical-week alcohol grid, a seven-day cannabis grid, and self-reported grade point average (GPA). Results indicated that autonomous academic motivation was uniquely related to GPA; however, neither motivation variable related to …

Graduate Physical Therapy Students Perceived Benefit Of Prior Anatomy Experiences Following Their First Semester Graduate Physical Therapy Anatomy Course, Austin Alexander

EVMS School of Health Professions Theses & Dissertations

Human anatomy stands as a cornerstone prerequisite for admission into graduate-level Physical Therapy Programs. As such, prior anatomy experiences need to prepare students for success in graduate-level coursework. However, studies have demonstrated that undergraduate anatomy courses vary in their ability to predict success in graduate Physical Therapy anatomy coursework. This research aimed to utilize students' perceptions of their undergraduate anatomy experiences to predict grades in graduate-level Physical Therapy anatomy coursework. The multinomial logistic regression in this study revealed that the absence of perceived preparedness was a significant predictor of membership in the C graduate anatomy grade group. Students who did …

Assessing The Impact Of Maternal Oral Health On The Risk Of Adverse Birth Outcomes, May Amr Salama

Health Services Research Dissertations

Preterm birth (PTB) and low birth weight (LBW) are leading causes of neonatal morbidity and mortality. Maternal periodontal disease (PD) has been increasingly linked to these adverse birth outcomes (ABOs), yet questions about causality and treatment effectiveness persist due to study design heterogeneity and potential unmeasured confounding. These gaps hinder the development of clear clinical and public health guidelines. This dissertation addresses these gaps through three interconnected studies assessing the relationship between maternal oral health and ABOs.

The first study employed a meta-epidemiological analysis of 62 original studies from nine systematic reviews to evaluate the impact of unmeasured confounding on …

Monte Carlo Simulations Of Geometric Deformation Of Harrison-Anderson-Mick Applicators Used In Intraoperative Radiation Therapy, Benjamin Insley, Brett Bocian, Sam Beddar, Reza Reiazi, Patrick James Jensen, Rachael M Martin-Paulpeter, Joshua Scott Niedzielski, David Flint, Gabriel Oliveira Sawakuchi, Luis Augusto Perles

Faculty, Staff and Student Publications

Background: The Harrison-Anderson-Mick (HAM) applicator is a high-dose-rate intraoperative radiotherapy (HDR-IORT) applicator used to position Ir-192 brachytherapy sources over surgically-accessed tumor volumes or post-resection tumor beds. Because of the lack of a 3D imaging system, dwell times are optimized pre-surgery by a TG-43-based treatment planning system (TPS) that assumes a perfectly flat applicator surface surrounded by an infinite water phantom. These assumed conditions are disparate from typical treatment conditions, especially in the pelvic regions, which often involve uneven patient surfaces and superficial irradiations with little to no backscatter material.

Purpose: Develop and validate a Monte Carlo (MC) model of HDR-IORT …

Evaluating A Blood Warming Device For Packed Red Blood Cell Transfusions To Decrease Hypothermia In Very Preterm Infants: A Randomised Control Trial Protocol, Kayla C. Everhart Phd, Rn, Michael D. Wirth Msph, Phd, Face, Victor N. Iskersky, Robin B. Dail Phd, Rn, Faan

Publications

Background: This protocol describes a study to test a commercial blood warming device in warming blood transfusions to prevent hypothermia associated with packed red blood cell (PRBC) transfusions in very preterm infants. Objectives: Very preterm infants receiving blood transfusions warmed by a commercial blood warmer will have less central body hypothermia post transfusion (abdominal temperatures < 36.5°C) and/or a higher mean abdominal temperature for the hour after the transfusion is complete compared to those receiving blood transfusions by standard of care. This trial has been registered with Clinicaltrials.gov (trial number NCT05170633). Methods: In this trial, which is funded by The Gerber Foundation and adhered to the SPIRIT2013 checklist, 140 very preterm infants with an order to receive PRBCs will be randomised into a standard of care group to receive one PRBC transfusion over 3 h with blood in a syringe at room temperature or into the intervention group to receive one PRBC transfusion over 3 h using a Hotline® Blood and Fluid Warmer. Abdominal skin temperatures will be measured every minute through a blood transfusion using a skin thermistor and datalogger. Data analysis: Descriptive statistics will be computed for each group to compare demographics and all infant pre-, during, and post-transfusion body temperatures. A student t-test will be used to compare the groups on mean post-transfusion temperatures as a primary outcome variable. To examine thermal change over time between the two groups, linear mixed models with a random intercept will be utilised. Results: This trial began in January 2022, in a South Carolina neonatal intensive care unit and is ongoing. Discussion: This RCT will determine if warming PRBC transfusions will prevent hypothermia in preterm infants during and after blood transfusions. Results from this trial will be used to design national standards for blood transfusions in preterm infants to decrease morbidity and mortality.

Public Health Trade-Offs During A Pandemic: Mobility Decline And Hypertension Risk In India, Arpita Khanna, Tomoki Fujii

Research Collection School Of Economics

The Covid pandemic dramatically altered patterns of daily life, particularly through widespread declines in mobility due to lockdowns and social distancing measures. While the economic and epidemiological effects of these restrictions have been widely studied, their broader health implications remain underexplored. This paper investigates the relationship between mobility decline during the Covid pandemic and hypertension outcomes in India. Leveraging district-level variation in mobility from Google Community Mobility Reports and health data from the 2019–2021 Indian Demographic and Health Survey (DHS), we find that a 1 percentage point reduction in mobility over the 30 days prior to interview is associated with …

Addressing Nursing Student Burnout Through Mindfulness And Zen Den At University Of The Pacific, Jeremy Seaton, Tanairi Ingram, Natalia Zelayandia

ELMSN E-Portfolio. A collection of Scholarly and Creative Works

Background:

Burnout among nursing students is a critical issue that negatively impacts academic performance, mental well-being, and long-term professional retention. Entry-Level Master of Science in Nursing students at University of the Pacific experience heightened stress due to rigorous coursework, clinical demands, and underdeveloped institutional mental health support.

Aim:

This Quality Improvement project aimed to reduce stress and strengthen emotional resilience among nursing students through Mindfulness-Based Stress Reduction education and the creation of a peer-supported wellness space, the “Zen Den.”

Methods:

A pre- and post-intervention design was implemented, utilizing surveys to measure mindfulness knowledge, attitudes toward self-care, and stress awareness. Zen …

Enhancing Pediatric Sun Safety: A Parent-Focused Intervention In El Dorado County, Ashley Riley, Calvin Nauer, Alaina Godwin

ELMSN E-Portfolio. A collection of Scholarly and Creative Works

Background:

Childhood ultraviolet (UV) exposure is the most significant modifiable risk factor for skin cancer, yet proper sun protection remains inconsistently practiced by parents. In El Dorado County, California, where high altitude and intense sun exposure amplify UV risk, knowledge gaps and misinformation persist despite resource availability. This quality improvement (QI) project aimed to strengthen parental knowledge, confidence, and modeling of sun-safe behaviors for their children through an evidence-based community education program.

Aim:
The goal of this QI initiative was to improve parental attitudes, self-efficacy, and photoprotective behaviors by implementing a three-part, nursing-led educational intervention focused on UV risk awareness, …

Utilizing An Artificial Intelligence And Machine Learning Model To Predict Colorectal Cancer Risk In American Samoa: A Pilot Study, Va’Atausili Tofaeono, Tulimalefoi Va’Ofanua, Ana Jane M. Bontjia, Siumukuka Fa’Aiuaso – Galea’I, Robert Gayapa, Eran Choman, Shawnda Schroeder

Indigenous Health Faculty Publications

Objective: This pilot study aimed to assess the feasibility of using an artificial Intelligence and machine learning (AI/ML) model to predict colorectal cancer (CRC) risk in American Samoa, where resource limitations and cultural barriers significantly hinder screening efforts. Methods: The AI/ML model used complete blood count (CBC) results, along with age and gender, to predict CRC risk. A retrospective analysis was conducted on data from 6,025 individuals aged 50 and above from the Lyndon Baines Johnson Tropical Medical Center’s electronic health records. Of these, 62 participants were identified as high-risk for CRC based on the AI/ML model. The study also …

Mapping The Mortality-To-Incidence Ratios Of Alzheimer’S Disease And Related Dementias (Adrds): Evidence From The South Carolina Alzheimer’S Disease Registry, Eric Mishio Bawa, Daniel A. Amoatika, Margaret C. Miller Ms, Ph.D., Bankole A. Olatosi Ph.D., Lorie Donelle Phd, Rn, Fcan, Sue E. Levkoff Scd, Msw, Sm, James W. Hardin Ph.D., Xiaoming Li Ph.D., Leonardo Bonilha, Daniela B. Friedman Ph.D., Swann Arp Adams Ph.D., Ms, Face

Publications

Introduction Mortality-to-incidence ratios (MIRs) are useful in assessing disease burdens and illustrating disparities. Unlike cancer, MIRs have not been applied to ADRDs. Therefore, we estimated and mapped the MIRs for ADRDs to show disparities in South Carolina. Methods Using data from the South Carolina Alzheimer’s Disease Registry (2017−2021), ADRD MIRs were calculated by demographic and geospatial characteristics. To account for the influence of the COVID-19 pandemic, data from 2015 to 2019 were also examined. MIRs were calculated as age-adjusted mortality rates divided by age-adjusted incidence rates. Results Overall, Black people and rural individuals consistently experienced higher MIRs, with the COVID-19 …

Building Adult-Gerontology Acute Care Nurse Practitioner Student Competencies For Telemental Health Treatment Through Simulation, Amy Dievendorf Dnp, Aprn, Fnp-Bc, Agacnp-Bc, Phyllis Raynor Phd, Aprn, Pmhnp-Bc, Beverly Baliko Phd, Rn, Pmhnp-Bc, Abbas Tavakoli Drph, Mph, Me

Publications

Depressive disorders are common mental health conditions that are often undiagnosed or undertreated. Adult-Gerontology Acute Care Nurse Practitioners (AGACNPs) are educated in the management of acute and critically ill patients but are often uncomfortable identifying and treating mental health conditions. Telehealth instruction is useful in mental healthcare and is required as part of the AGACNP’s efficient patient care competencies. This article reports findings from a mental health-focused telehealth instructional activity integrated into an existing AGACNP curriculum. This instructional activity was designed to introduce students to telehealth delivery and build AGACNP competencies using telehealth technology to assess patients with depressive mood …

Improving Early Detection Of Suicidal Ideation Through Routine Screening In Adults With General Anxiety Disorder, Brittanie N. Bush

Doctor of Nursing Practice

Suicide is a leading cause of death in the United States, with anxiety and depression recognized as independent risk factors for suicidal ideation (Centers for Disease Control and Prevention, 2024 September 26; Grant et al., 2023; Li et al., 2022; Moon et al., 2025; Wiebengo et al., 2021). Incorporating valid screening tools like the General Anxiety Disorder-7 and the Columbia-Suicide Severity Rating Scale can help identify suicidal ideation early, enabling quicker provider intervention (Johnson et al., 2019; O’Connor et al., 2022). The purpose of this project was to implement the Columbia-Suicide Severity Rating Scale as a standardized screening tool for …

Presenteeism Among Health Care Personnel With Covid-19, James C. Crosby, Eliezer Santos Leon, Brian Chinnock, Karisa K. Harland, Anusha Krishnadasan, Nicholas M. Mohr, Ian D. Plumb, Melissa Briggs Hagen, Kelli Wallace, David A. Talan, Anne Zepeski, Tracy Young, Howard A. Smithline, Lilly C. Lee, Stephen C. Lim, Gregory J. Moran, Mark T. Steele, David G. Beiser, John P. Haran, Peter C. Hou, Brett Faine, Utsav Nandi, Walter A. Schrading, Anne Chipman, Frank Lovecchio, Alysia Powers, Lisandra Uribe, Kavitha Pathmarajah, Dean M. Hashimoto, Chloe Namias, Efrat Kean, Elizabeth Krebs, Amy Stubbs, Sara Roy, Lucia Solis, Mary Mulrow, Nathan Graff, Jillian M Tozloski, William Mower, Jacqueline Caldera, Michelle Huber, Jacob Hampton, Abigail Lopes, Katherine Elkort, Stephanie A. Eucker, Carla Kingsbury, Jonathan Femling, Silas Bussmann, Jane Yee, Joseph Stuppy, Richard E. Rothman, Gaby Dashler, Marcel E. Curlin, Mastura Wahedi, Laurie Kemble

Department of Medicine Faculty Papers

IMPORTANCE: Presenteeism-defined as continuing to work during an illness-poses a public health risk in the workplace and is especially hazardous within health care institutions where vulnerable patients may be exposed to nosocomial infections. Understanding the frequency and characteristics of health care personnel (HCP) who report presenteeism while ill with COVID-19 may help mitigate SARS-CoV-2 spread in hospitals and other health care institutions.

OBJECTIVES: To determine the frequency of presenteeism among HCP with symptomatic COVID-19, and to evaluate the demographic, occupational, and clinical factors associated with it.

DESIGN, SETTING, AND PARTICIPANTS: This is an observational cohort study that uses data from …

Endoscopic Retrograde Cholangiopancreatography And Primary Sclerosing Cholangitis: A Retrospective Study Of A High-Volume Program, Kristel Leung, Michael Youssef, Yasi Xiao, Catherine Streutker, Aliya Gulamhusein, Bettina Hansen, Natalia Calo, Gary May, Jeffrey Mosko, Gideon Hirschfield

Division of Gastroenterology and Hepatology Faculty Papers

BACKGROUND: Endoscopic retrograde cholangiopancreatography (ERCP) is valuable in management of primary sclerosing cholangitis (PSC). Herein, we characterize individuals with PSC who underwent ERCP on-demand at a high-volume quaternary centre, with evaluation of pathology results and short-term postprocedural outcomes.

METHODS: This retrospective cohort study evaluated patients with PSC who underwent ERCP at St Michael's Hospital between April 2011 and July 2021. Chart review was conducted to collect clinical, procedural, and pathology data, and reported post-ERCP complications within 90 days. Logistic regression analyses were conducted to evaluate factors associated with post-ERCP complications and placement of a biliary stent.

RESULTS: One hundred and …

The Effect Of Exercise On Dynamic Balance And Walking Endurance In Patients With Relapsing Remitting Multiple Sclerosis: A Systematic Review And Meta-Analysis, Connor Gibson

The Plymouth Student Scientist

Background: Multiple Sclerosis (MS) affects 2-3 million people worldwide, with relapsing remitting MS (RRMS) accounting for 75% of new cases. Exercise has been proposed to alleviate symptoms and enhance quality of life. This meta-analysis aims to evaluate the effect of exercise on dynamic balance and walking endurance in RRMS patients.

Methodology: A comprehensive PubMed search identified exercise interventions that specifically measured walking endurance via the 6-minute walk test (6MWT) and dynamic balance through the timed up-and-go (TUG) test. Mean and standard deviation values at baseline and post-intervention were extracted for analysis. For subgroup comparisons, interventions were classified as either lower …