Digital Commons Network^™

Large-Scale Multi-Omics Analyses In Hispanic/Latino Populations Identify Genes For Cardiometabolic Traits, Lauren E Petty, Hung-Hsin Chen, Elizabeth G Frankel, Wanying Zhu, Carolina G Downie, Mariaelisa Graff, Phillip Lin, Priya Sharma, Xinruo Zhang, Alyssa C Scartozzi, Rashedeh Roshani, Joshua M Landman, Michael Boehnke, Donald W Bowden, John C Chambers, Anubha Mahajan, Mark I Mccarthy, Maggie C Y Ng, Xueling Sim, Cassandra N Spracklen, Weihua Zhang, Michael Preuss, Erwin P Bottinger, Girish N Nadkarni, Ruth J F Loos, Yii-Der Ida Chen, Jingyi Tan, Eli Ipp, Pauline Genter, Leslie S Emery, Tin Louie, Tamar Sofer, Adrienne M Stilp, Kent D Taylor, Anny H Xiang, Thomas A Buchanan, Kathryn Roll, Chuan Gao, Nicholette D Palmer, Jill M Norris, Lynne E Wagenknecht, Darryl Nousome, Rohit Varma, Roberta Mckean-Cowdin, Xiuqing Guo, Yang Hai, Willa Hsueh, Kevin Sandow, Esteban J Parra, Miguel Cruz, Adan Valladares-Salgado, Niels Wacher-Rodarte, Jerome I Rotter, Mark O Goodarzi, Stephen S Rich, Alain Bertoni, Leslie J Raffel, Jerry L Nadler, Fouad R Kandeel, Ravindranath Duggirala, John Blangero, Donna M Lehman, Ralph A Defronzo, Farook Thameem, Yujie Wang, Sheila Gahagan, Estela Blanco, Raquel Burrows, Alicia Huerta-Chagoya, Jose C Florez, Teresa Tusie-Luna, Clicerio González-Villalpando, Lorena Orozco, Christopher A Haiman, Craig L Hanis, Rebecca Rohde, Eric A Whitsel, Alexander P Reiner, Charles Kooperberg, Yun Li, Qing Duan, Miryoung Lee, Paulina Correa-Burrows, Susan K Fried, Kari E North, Joseph B Mccormick, Susan P Fisher-Hoch, Eric R Gamazon, Andrew P Morris, Josep M Mercader, Heather M Highland, Jennifer E Below

Faculty, Staff and Student Publications

Here, we present a multi-omics study of type 2 diabetes and quantitative blood lipid and lipoprotein traits conducted to date in Hispanic/Latino populations (nmax = 63,184). We conduct a meta-analysis of 16 type 2 diabetes and 19 lipid trait GWAS, identifying 20 genome-wide significant loci for type 2 diabetes, including one novel locus and novel signals at two known loci, based on fine-mapping. We also identify sixty-one genome-wide significant loci across the lipid/lipoprotein traits, including nine novel loci, and novel signals at 19 known loci through fine-mapping. Next, we analyze genetically regulated expression, perform Mendelian randomization, and analyze association with …

Whole Genome Sequencing Analysis Of Body Mass Index Identifies Novel African Ancestry-Specific Risk Allele, Xinruo Zhang, Jennifer A Brody, Mariaelisa Graff, Heather M Highland, Nathalie Chami, Hanfei Xu, Zhe Wang, Kendra R Ferrier, Geetha Chittoor, Navya Shilpa Josyula, Mariah Meyer, Shreyash Gupta, Xihao Li, Zilin Li, Matthew A Allison, Diane M Becker, Lawrence F Bielak, Joshua C Bis, Meher Preethi Boorgula, Donald W Bowden, Jai G Broome, Erin J Buth, Christopher S Carlson, Kyong-Mi Chang, Sameer Chavan, Yen-Feng Chiu, Lee-Ming Chuang, Matthew P Conomos, Dawn L Demeo, Mengmeng Du, Ravindranath Duggirala, Celeste Eng, Alison E Fohner, Barry I Freedman, Melanie E Garrett, Xiuqing Guo, Chris Haiman, Benjamin D Heavner, Bertha Hidalgo, James E Hixson, Yuk-Lam Ho, Brian D Hobbs, Donglei Hu, Qin Hui, Chii-Min Hwu, Rebecca D Jackson, Deepti Jain, Rita R Kalyani, Sharon L R Kardia, Tanika N Kelly, Ethan M Lange, Michael Lenoir, Changwei Li, Loic Le Marchand, Merry-Lynn N Mcdonald, Caitlin P Mchugh, Alanna C Morrison, Take Naseri, Jeffrey O'Connell, Christopher J O'Donnell, Nicholette D Palmer, James S Pankow, James A Perry, Ulrike Peters, Michael H Preuss, D C Rao, Elizabeth A Regan, Sefuiva M Reupena, Dan M Roden, Jose Rodriguez-Santana, Colleen M Sitlani, Jennifer A Smith, Hemant K Tiwari, Ramachandran S Vasan, Zeyuan Wang, Daniel E Weeks, Jennifer Wessel, Kerri L Wiggins, Lynne R Wilkens, Peter W F Wilson, Lisa R Yanek, Zachary T Yoneda, Wei Zhao, Sebastian Zöllner, Donna K Arnett, Allison E Ashley-Koch, Kathleen C Barnes, John Blangero, Eric Boerwinkle, Esteban G Burchard, April P Carson, Daniel I Chasman, Yii-Der Ida Chen, Joanne E Curran, Myriam Fornage, Victor R Gordeuk, Jiang He, Susan R Heckbert, Lifang Hou, Marguerite R Irvin, Charles Kooperberg, Ryan L Minster, Braxton D Mitchell, Mehdi Nouraie, Bruce M Psaty, Laura M Raffield, Alexander P Reiner, Stephen S Rich, Jerome I Rotter, M Benjamin Shoemaker, Nicholas L Smith, Kent D Taylor, Marilyn J Telen, Scott T Weiss, Yingze Zhang, Nancy Heard-Costa, Yan V Sun, Xihong Lin, L Adrienne Cupples, Leslie A Lange, Ching-Ti Liu, Ruth J F Loos, Kari E North, Anne E Justice

Faculty, Staff and Student Publications

Obesity is a major public health crisis associated with high mortality rates. Previous genome-wide association studies (GWAS) investigating body mass index (BMI) have largely relied on imputed data from European individuals. This study leveraged whole-genome sequencing (WGS) data from 88,873 participants from the Trans-Omics for Precision Medicine (TOPMed) Program, of which 51% were of non-European population groups. We discovered 18 BMI-associated signals (P <  5 × 10

Comparing Cpr Ventilation Strategies Within Tualatin Valley Fire And Rescue Using A Retrospective Observational Cohort Study, Jack T. Hindley

OHSU-PSU School of Public Health Annual Conference

Study Objective: This was a registry based retrospective observational cohort study of roughly 1,150 cardiac arrest cases transported by the Tualatin Valley Fire and Rescue emergency medical service (EMS) agency to hospitals in the Portland area from 2018-2019 and from 2022-2023 to compare cardiopulmonary resuscitation (CPR) ventilation policy changes between these two years from continuous chest compressions (CCC) to a compression ventilation ratio of 30:2. Hospital outcomes were linked to EMS records through trauma registries, state discharge and emergency department data. The primary outcome was survival to discharge, and the secondary outcome was positive neurological outcome (Cerebral performance category score …

Prenatal Exposure To Pm2.5 Concentration And Risk Of Preterm Birth In New Mexico; A Seasonal Pattern And Spatio-Temporal Modeling., Onyedikachi J. Okeke

Mathematics & Statistics ETDs

This study investigates the association between prenatal PM2.5 exposure and preterm birth risk in New Mexico (2014–2021). Using descriptive statistics, time series models, and spatial analyses, findings show an average preterm birth rate of 14.87 per 1,000 live births, with moderate correlation (r = 0.727) between PM2.5 levels and very preterm births. While traditional models revealed no significant global effect, spatial methods such as Geographically Weighted Regression (GWR) and Multiscale GWR uncovered strong spatial heterogeneity. PM2.5 effects varied by county (coefficients: -0.00154 to 0.00150), with clustering evident in 2018–2019 (Moran’s I = 0.155–0.174). Results highlight the limitations of global models …

Alterations In Dna Methylation, Proteomic, And Metabolomic Profiles In African Ancestry Populations With Apol1 Risk Alleles, Xinruo Zhang, Ashley W Scadden, Amarnath Marthi, Victoria L Buchanan, Yishu Qu, Kendra R Ferrier, Brian D Chen, Mariaelisa Graff, Julian Avila, Eric Boerwinkle, Steven Buyske, Clary B Clish, Dan Cruz, Myriam Fornage, Robert E Gerzsten, Christopher R Gignoux, Lashaunta Glover, Lifang Hou, Anne E Justice, Charles Kooperberg, Holly Kramer, Leslie Lange, Ruth J F Loos, Tara Matise, Josyf C Mychaleckyj, Opeyemi A Olabisi, Ulrike Peters, Laura M Raffield, Alex P Reiner, Stephen S Rich, Jerome I Rotter, Kent D Taylor, Bing Yu, Yinan Zheng, Kari E North, Amy K Mottl, Heather M Highland, Maggie A Stanislawski

Faculty, Staff and Student Publications

Key Points:

1. We aimed to elucidate potential methylation, proteomic, and metabolomic mechanisms by which APOL1 variants may be linked to kidney disease.

2. We report distinct methylation profiling between APOL1 risk allele carriers and noncarriers, many near APOL gene family.

3. We report higher APOL1 protein and lower C18:1 cholesteryl ester in two risk allele carriers.

Background: The APOL1 high-risk haplotype has been associated with CKD and the deterioration of kidney function, particularly in populations with West African ancestry. However, the mechanisms by which APOL1 risk variants increase the risk for kidney disease and its progression have not been fully elucidated.

Methods: …

Clinical Practice Guideline For The Improvement Of Care Compliance Of Children Affected By Obesity, Denise Vaz

Walden Dissertations and Doctoral Studies

Childhood obesity is diagnosed in children with a weight that is above the normal levels for their age and height. This diagnosis can be made if the child's body mass index (BMI) percentile is equal to or above 95% for age and sex. Per the Centers for Disease Control and Prevention (CDC; 2024), BMI, an anthropometric index of weight and height, is calculated by dividing a person's weight (in kilograms) by the square of their height (in meters), is used to assess if a child is underweight, overweight, obese or of healthy weight. The Cleveland Clinic (2024) noted that BMI …

Lived Experiences Of Seropositive Msm Who Face Intersectional Stigma Regarding Hiv-Prevention And Care In California, Sagar Bedi

Walden Dissertations and Doctoral Studies

Individuals who are positive for Human Immunodeficiency Virus (HIV) and identify as MSM (men who have sex with men), a population disproportionately affected by this disease, face complex struggles due to interplay between multiple forms of stigma, disclosure, and HIV risk behaviors. This results in delayed testing, poor treatment adherence, and decreased engagement in care. Despite the growing body of research on HIV among MSM, very few studies have explored the complex ways in which multiple forms of stigma intersect and impact the lives of Seropositive MSM. The purpose of this qualitative study was to explore the perception and lived …

No Vaccine? Why Not: Causes Of Vaccine Hesitancy And How Governments Can Stop It, Alexander (Alec) Mccarty '25

Honor Scholar Theses

Vaccine hesitancy is a term that has entered the spotlight since the beginning of the COVID-19 pandemic. With concerns about efficacy, safety, and individual choice, many people have developed a hesitancy toward receiving any vaccine, creating concerns for public and global health. Through responses from local and state health departments about their actions during the COVID-19 pandemic, and through analysis of state vaccine rates based on political affiliation, this study suggests that vaccine hesitancy is a current issue that is likely politically motivated. States that are Republican affiliated have lower rates of vaccine uptake, and in turn they have higher …

Assessing Eye Care Needs And Service Accessibility In A Student-Run Free Clinic In An Underserved Urban Population, Hamza Khan, Arifbillah Sarowar, Olivia Jeakle, Sophia Griemert, Olivia Decker, Demetrius Moncrease, Timothy Page, Dominic Sacca, Anju Goyal

Medical Student Research Symposium

Introduction: Student-run free clinics offer valuable firsthand experience in providing care to uninsured and underserved communities. As efforts to enhance eye care expand over time, it is crucial to evaluate the accessibility and effectiveness of these services within the community. This study examines the demographics and needs of patients seeking eye care, as well as the availability of initial screenings at our clinic.

Methods: A retrospective review of patient charts was conducted for individuals who attended the Sight Saver’s free healthcare clinic to receive an eye exam. Data collected includes patient demographics, comorbidities, family history of eye-related diseases, visual acuity …

Social Support And Treatment Outcomes Among Multi-Drug Resistant Tuberculosis And Persons Living With Hiv In Nigeria, Abiodun Olusegun Hassan

Walden Dissertations and Doctoral Studies

An estimated 40% of people with tuberculosis (TB) are missed due to underdiagnosis, and among those previously treated TB cases, about a quarter develop drug-resistant TB in Nigeria. The emergence of multi-drug-resistant TB (MDR-TB) is stalling the effort towards TB’s control and eradication. Few studies have examined the impact of the psychosocial effect and support systems for TB, particularly for MDR-TB. In this quantitative, cross-sectional study, the predictive relationship between social support given to MDR-TB patients and their treatment outcomes was examined using secondary data of 594 MDR-TB cases enrolled between January 2018 and December 2021. The theoretical framework for …

Stopping The Cirrhosis: An International Review Of Hep C Screening In Prisons And Jails From 2004-2023, Anastasia Sahu Bs, Jack Spurlock Ba, Mhs, Eliza Beal Md

Medical Student Research Symposium

Background: As of 2023, HCV prevalence in state prisons in the United States was 9 times higher than the general population¹. Without treatment, 20% of people with HCV will develop cirrhosis, and some estimate that 70% of hepatocellular carcinoma (HCC) cases arise from cirrhosis or advanced fibrosis². Despite the high prevalence in prisons, the US does not have nationally standardized Hep C screening in correctional facilities. The goal of this study is to investigate different models of existing programs in prisons internationally. Understanding these models will inform Hep C screening in US prisons on a state …

A Mapping Review And Critique Of The Literature On Translation, Dissemination, And Implementation Capacity Building Initiatives For Different Audiences, Ana A Baumann, Danielle R Adams, Laura-Mae Baldwin, Rachel G Tabak, Sara Malone, Maura M Kepper, Anita D Misra-Hebert, Kathleen R Stevens, Maria E Fernandez, Sunil Kripalani

Faculty, Staff and Student Publications

Background: Capacity building is critical for research and practice as the fields of dissemination, implementation and translation science continue to grow. Some scholars state that capacity building should be grounded in competencies. However, the fields are unclear in determining which competencies are relevant for whom, including the content and appropriate level of information and skills for different roles. The goal of this study was to catalogue competencies across current D&I capacity building initiatives.

Methods: We conducted a mapping review to examine to what extent are theories or frameworks used to guide capacity building, who is being trained, to what extent …

College Healthcare Providers: Are They Prepared To Treat Students Following A Disclosure Of Sexual Assault?, Torrie Piasecki, Lindsay Gietzen

Pacific Journal of Health

Sexual assault is happening on university and college campuses. This study aims to explore the gap in care relative to how on-campus healthcare providers respond to college students following a disclosure of sexual assault and the access to resources provided to them. A sample of seven providers from two major college campuses in Stockton, CA responded to a questionnaire about formal disclosures of sexual assault. Each participant self-reported their knowledge of trauma-informed care (TIC) and what they understand about their campus resources for survivors of sexual assault. Results from participants who completed the survey indicated that although most knew where …

Reevaluating Informed Consent: Integrating Shared Decision-Making Into Spinal Surgery For Better Patient Outcomes., Jeffrey N Wang, Mohamed A Elhakeem, Matthew J Mesimer, Paul G Mastrokostas, Salman Ahmad, Tim Reed, Brandon Klein, Lucas E Bartlett, Adam D Bitterman, Andrew Megas

Rowan-Virtua School of Osteopathic Medicine Departmental Research

Study Design: Narrative review.

Objectives: The objectives of this study were to answer the following questions: (1) What is the quality of informed consent in spine surgery, including both neurosurgery and orthopaedic spine surgery? (2) What limitations impede the ability of surgeons to engage in effective shared decision-making (SDM) and obtain adequate informed consent? (3) What strategies and solutions may improve the quality of informed consent and SDM? (4) What factors decrease the incidence of litigation in spine surgery?

Methods: N/A.

Results: SDM is a collaborative process where patients are involved in their treatment choices through open communication about risks, …

Prevalence And Risk Factors Associated With Postpartum Hemorrhage Among Postpartum Women In Selected Health Facilities In Machakos County - A Case-Control Study, Daniel Kyalo Muthiani

MSc in Advanced Practice Midwifery

Background: Postpartum hemorrhage (PPH) refers to blood loss ≥500mls after vaginal birth and ≥1000mls after cesarean section. PPH is of concern in low and middle-income countries and is estimated to cause maternal mortality every 10 minutes, with a prevalence of 25% and 34% in Uganda and Kenya, respectively. Despite efforts to address this issue, the prevalence of PPH remains high and is associated with maternal and fetal risk factors that can present along the continuum of birth. Understanding the risk factors is necessary in designing appropriate interventions for their prevention.

Objective: To determine the prevalence, maternal and fetal risk factors …

Editorial: Promoting Patient-Centered Care For Pediatric Rheumatology Across Africa, Wafa Hamdi, Angela Migowa

Paediatrics and Child Health, East Africa

Pediatric rheumatology remains an evolving field in Africa, where challenges such as limited specialist availability, diagnostic delays, and inadequate public awareness hinder optimal patient care (1). Similarly, research in this field remains scarce, with a significant lack of data needed to define the spectrum and clinical expression of these diseases. Capturing real-world experiences and field reports is invaluable, as it provides critical insights to identify key areas for action and develop strategies to advance research in Africa. This collection of six manuscripts offers valuable perspectives on various aspects of pediatric rheumatic diseases, including caregiver experiences, diagnostic challenges, therapeutic patient education, …

Tobacco Package Health Warnings About Product Manipulations: An Experimental Study Among Australian Adults Who Smoke, Emily Brennan, Claudia Gascoyne, Kimberley Dunstone, Amanda Vittiglia, Gayathri Srinivasan, Jim Thrasher Ph.D., Ma, Ms, Janet Hoek, Melanie Wakefield, Sarah Durkin

Faculty Publications

The tobacco industry manipulates cigarettes to provide sensory cues that mislead people who smoke. We assessed the effectiveness of health warnings (HWs) focussed on the impact of misleading product attributes, including filter ventilation, menthol, and roll-your-own tobacco, which were called Product Attribute HWs. Australian adults who smoke (n = 2544) were randomly assigned to view: control medication warnings; new Standard HWs with smoking harm images; Product Attribute HWs; or Product Attribute HWs plus a video. At baseline, participants were exposed to seven condition-specific warnings (+ video for those in the Product Attribute HWs + Video condition), then they were …

Science And Politics In Public Health Regulation, Samuel R. Bagenstos

University of Michigan Journal of Law Reform

Much of American public discourse takes for granted a distinction between science and politics. People describe and understand that distinction in contradictory ways, however. And those contradictions themselves underscore how closely entwined science and politics actually are.

South Dakota Department Of Health: Office Of Community Engagement Strategic Plan Fiscal Years 2025-2028, Julia E. Platt

Honors Thesis

The goal of a strategic plan is to ensure that resources are used effectively and efforts are focused where they are most required by means of direction and concentration. The South Dakota Department of Health Office of Community Engagement Strategic Plan Fiscal Years 2025-2028 contains objectives and goals aimed at maximizing the use of resource allocations and solutions to best meet the needs of the OCE and its partners. In order to create those goals and objectives, internal and external needs assessments, along with key informant interviews, were conducted and analyzed to pull data into actionable SMART objectives. Alignment with …

Hbv Transmission Knowledge Among Korean-American Chronic Hepatitis B Patients In The United States, Giyoung Lee, Hee-Soon Juon, Eunji Kim, Katherine C Smith, Hie-Won Hann, Mimi Chang, Ann C. Klassen

Division of Gastroenterology and Hepatology Faculty Papers

Chronic hepatitis B (CHB) is a condition that disproportionately affects Asian Americans in the United States. Knowledge of transmission is crucial for CHB patients to practice prevention methods to limit the spread of the hepatitis B virus (HBV), but also live their lives free from unwarranted fears or restrictions. Among Asian CHB patients, several misperceptions about HBV transmission have been identified. This analysis aims to assess the current state of HBV knowledge among a cohort of Korean-American CHB patients. This mixed-methods study includes 363 respondents who completed a survey in either Korean (N = 298) or English (N = 65) …

“Everything Is Electronic Health Record-Driven”: The Role Of The Electronic Health Record In The Emergency Department Diagnostic Process, Tyler G James, Courtney W Mangus, Sarah J Parker, P Paul Chandanabhumma, C M Cassady, Fernanda Bellolio, Kalyan Pasupathy, Milisa Manojlovich, Hardeep Singh, Prashant Mahajan

Faculty, Staff and Students Publications

Objectives: There is limited knowledge on how providers and patients in the emergency department (ED) use electronic health records (EHRs) to facilitate the diagnostic process. While EHRs can support diagnostic decision-making, EHR features that are not user-centered may increase the likelihood of diagnostic error. We aimed to identify how EHRs facilitate or impede the diagnostic process in the ED and to identify opportunities to reduce diagnostic errors and improve care quality.

Materials and methods: We conducted semistructured interviews with 10 physicians, 15 nurses, and 8 patients across 4 EDs. Data were analyzed using a hybrid thematic analysis approach, which blends …

Worldwide Policy, Surveillance, And Research On Physical Education And School-Based Physical Activity: The Global Observatory For Physical Education (Gope!) Conceptual Framework And Research Protocol, João Martins, Andrea Ramirez Varela, João Costa, Marcos Onofre, Dean Dudley, Rafael Cristão, Michael Pratt, Pedro C Hallal, Rafael Tassitano

Faculty, Staff and Student Publications

Introduction: The Global Observatory for Physical Education (GoPE!) builds on the Global Observatory for Physical Activity (GoPA!) to address gaps in surveillance, policy, and research on physical education (PE) and activity (PA). GoPE! is a worldwide surveillance system of quality PE and school-based PA that informs policy and interventions and allows comparative analysis so that each country and region can check their status and progress. This paper presents GoPE!'s conceptual framework and describes the research protocol as a cross-continental and evidence-based surveillance system.

Methods: Based on GoPA!'s framework and informed by the European Physical Education Observatory, as well as framed …

A Phase I Study Of The Pharmacokinetics, Pharmacodynamics, And Safety Of Liposomal Bupivacaine For Sciatic Nerve Block In The Popliteal Fossa For Bunionectomy, Daniel I Sessler, Xiaodong Bao, David Leiman, Jia Song, Jason Chittenden, Alexander Voelkner, Alparslan Turan, Jeffrey Gadsden

Faculty, Staff and Student Publications

This trial assessed the pharmacokinetics, pharmacodynamics, and safety of liposomal bupivacaine given via ultrasound-guided popliteal sciatic nerve block with or without immediate-release bupivacaine hydrochloride in adults having bunionectomies. Forty-five adults were enrolled into four sequential cohorts: (1) liposomal bupivacaine 266 mg with bupivacaine hydrochloride 50 mg; (2) liposomal bupivacaine 133 mg with bupivacaine hydrochloride 50 mg; (3) liposomal bupivacaine 266 mg; or (4) bupivacaine hydrochloride 100 mg. Outcomes included pharmacokinetics (e.g., bupivacaine maximum plasma concentration [C

Standardization And Quality Control Of The Introduction Of A Noninvasive Cardiac Output Monitor For Pregnancy Measurements In A Low- And Middle-Income Country, Helen Perry

Centre of Excellence in Women and Child Health

Introduction :There is increasing awareness of the role of the maternal cardiovascular system in complicated pregnancies. Despite the high disease burden, noninvasive cardiac output monitors have not been used extensively in low- and middle-income countries. The aim of this study was to evaluate the quality control of the use of the ultrasonic cardiac output monitor (USCOM) 1A® in a LMIC.

Material and Methods This was a quality assessment study of the introduction of the USCOM 1A® to measure maternal hemodynamic indices. Inter-observer agreement was assessed across all four study sites by intraclass correlation coefficient. Quality control was assessed using pre-defined …

Understanding The Factors Influencing Movement Behaviors Among Dog Owners, Katherine Eileen Devivo

Theses and Dissertations

This dissertation investigates two key objectives: 1) to understand influences of physical activity among dog owners, and 2) to determine if there were differences in objectively measured physical activity levels and/or affect at times when dog owners are with their dogs compared to times when they are not with their dogs. To address the first objective, a qualitative study was conducted with 20 dog owners using semi-structured interviews, constant comparative methodology, grounded theory, and open coding. The findings revealed several key barriers to physical activity and dog walking such as physical health, seasons/weather, time/schedules, and dog specific limitations. Key facilitators …

Adolescent Sleep Health, Mental Health, And Cardiovascular Disease Risk In Adulthood, Prince Nii Ossah Addo

Theses and Dissertations

Background: Insufficient sleep and poor sleep quality are major public health issues among adolescents in the United States (U.S.). Mental health and substance use challenges are also common among adolescents, particularly those with sleep problems. Although exposures in adolescence have been evidenced to significantly impact future health, little is known about how adolescent sleep health, mental health, and substance use influence future cardiovascular disease (CVD) risk. We, therefore, examined the association between sleep health in adolescence and CVD risk in adulthood and assessed whether the association is mediated by depressive symptoms and substance use in adolescents. Further, we explored the …

Impact Of Changes To International Commission On Radiological Protection Models On Occupational Thorium Ore Dust Intake, Gregory S. Hewson, Martin I. Ralph, Marcus Cattani

Research outputs 2022 to 2026

Workers involved in mining and processing naturally occurring radioactive materials (NORMs) are potentially exposed to dust containing alpha particle emitters. The objective of this study is to summarize the key impacts of the latest International Commission on Radiological Protection (ICRP) biokinetic model for thorium ore dust intake and to identify model parameters that require further investigation. The dosimetric significance of thorium ore dust exposure has varied widely over time owing to progressive changes in the inhalation dose coefficients. These changes had a significant influence on radiation protection practices in the Western Australian mineral sand industry, including research initiatives and implementation …

Opportunistic Measurement Of Sagittal Abdominal Diameter With Bone Densitometry Predicts Death And Cardiovascular Events, William D. Leslie, Fatima Zarzour, Lisa M. Lix, Neil Binkley, Joshua R. Lewis, John T. Schousboe

Research outputs 2022 to 2026

Supine sagittal abdominal diameter (SAD), also known as abdominal height, has been proposed as a simple measure for assessing abdominal adiposity. We aimed to determine whether SAD from DXA performed for osteoporosis assessment predicts major adverse cardiovascular events (MACEs) using the population-based DXA registry for the Province of Manitoba, Canada. The study population comprised 72 974 individuals aged 40 yr and older with baseline DXA assessment between February 1999 and March 2018. Incident MACE (composite of all-cause mortality, acute myocardial infarction [MI], non-hemorrhagic stroke) was ascertained from linked healthcare databases. During mean 8.4 yr follow-up (611 862 person-years), 14 457 …

The Impacts Of Physical (In)Activity On Endothelial Function, Joel Ernest Harden

Rehabilitation Sciences Theses & Dissertations

Exercise and physical activity are known to have beneficial effects on endothelial function and vascular health. Sedentary behavior and physical inactivity, however, have been shown to be related to poor endothelial function and vascular health. The overall purpose of this dissertation was to further elucidate the physiological links between physical (in)activity and vascular health. In the first study, 12 active, young (18-40 yr) individuals and 12 active, old (55+ yr) individuals were recruited. Participants underwent 5 days of removal of exercise, and had their endothelial function assessed via flow-mediated dilation (FMD) during their normal, habitual exercise state (EX) and during …

The Impact Of Hyperglycemia On Post-Reperfusion Outcomes In Patients With Hyperacute Ischemic Stroke, Nicole Schumacher

Theses and Dissertations (ETD)

Stroke is a major contributor to disability in the United States, with ischemic stroke accounting for approximately 87% of all cases. The use of approved reperfusion therapies, including intravenous thrombolysis with tissue plasminogen activator (tPA) and mechanical thrombectomy, has significantly improved functional outcomes for ischemic stroke patients. However, hyperglycemia at the time of hospital arrival is associated with worse outcomes, including increased infarct growth, higher rates of disability, and elevated mortality. Despite this, current stroke guidelines neither exclude hyperglycemic patients from receiving reperfusion therapy nor recommend glucose management during the hyperacute phase of care. While recent studies suggest that mild …