Epidemiology Commons^™

Differences In Hepatocellular Carcinoma Incidence Trends Across Us Census Divisions, 2001 To 2021, Itunu O Sokale, Omar Rosales, Aaron P Thrift, Hashem B El-Serag, Elyse Burgess, Abiodun O Oluyomi

Faculty, Staff and Students Publications

Background/Objectives: Hepatocellular carcinoma (HCC) is a leading cause of cancer diagnoses and deaths in the United States. This study serves as an update on secular trends in national HCC incidence rates while exploring potential geographic and racial/ethnic differences across all nine US census divisions.

Methods: We analyzed HCC incidence data reported to the United States Cancer Statistics (USCS) database from 2001 to 2021 (excluding 2020 data, based on the Centers for Disease Control and Prevention's cautionary recommendations for COVID-19 pandemic data usage for trend analysis). We performed trend analyses of age-adjusted incidence rates in the US overall, by census …

The Relationship Between Climate Change Awareness And Mental Health Among Adults In The United States, Stanley Nkemjika

Walden Dissertations and Doctoral Studies

Understanding the connection between climate change awareness and overall well-being is crucial, particularly regarding its impact on the environment and mental health. However, there is a need for more research on this topic, especially within the American context. The mental health implications of climate change are not yet fully understood, and there is a gap in the literature. This gap was addressed by exploring climate change awareness effects on mental health among U.S. adults. The social ecological model provided a framework to examine the impact of climate change awareness on mental health, considering individual, interpersonal, community, and societal factors. This …

Environmental Risk And Alpha-Gal Syndrome (Ags) In The Mid-Atlantic United States, Brandon D. Hollingsworth Ph.D., Margaret Wiener, Dana A. Giandimenico, Scott P. Commins, Ross M. Boyce

Faculty Publications

Alpha-gal syndrome (AGS), commonly referred to as the tick bite red meat allergy, has been reported worldwide with the number of suspected cases in the United States increasing from 24 in 2009 to over 34,000 in 2019. Within the US, AGS is associated with the bite of two tick species, Amblyomma americanum and Ixodes scapularis, and has particularly high incidence rates in the mid-Atlantic region. Because AGS is associated with tick bites, the risk of developing AGS is affected by the environment individuals visit. Despite this, as well as the numerous studies associating the environment with Am. americanum, …

The Havcr1-Centric Host Factor Network Drives Zika Virus Vertical Transmission, Wenzhe Yu, Jun Tao, Hongmin Cao, Wanshan Zheng, Beiang Zhang, Yue Zhang, Peiqun Xu, Yiwei Zhang, Xuan Liu, Yinan Wang, Han Cai, Gang Liu, Fan Liu, Haibin Wang, Haiyan Zhao, Indira U Mysorekar, Xiaoqian Hu, Bin Cao

Center on Aging Staff Publications

Zika virus (ZIKV) vertical transmission results in devastating congenital malformations and pregnancy complications; however, the specific receptor and host factors facilitating ZIKV maternal-fetal transmission remain elusive. Here, we employ a genome-wide CRISPR screening and identify multiple placenta-intrinsic factors modulating ZIKV infection. Our study unveils that hepatitis A virus cellular receptor 1 (HAVCR1) serves as a primary receptor governing ZIKV entry in placental trophoblasts. The GATA3-HAVCR1 axis regulates heterogeneous cell tropism in the placenta. Notably, placenta-specific Havcr1 deletion in mice significantly impairs ZIKV transplacental transmission and associated adverse pregnancy outcomes. Mechanistically, the immunoglobulin variable-like domain of HAVCR1 binds to ZIKV via …

Human Capital And Lifetime Income Gains Of Scaling-Up Small-Quantity Lipid Nutrient Supplements Among Children Under 2 Years: A Modelling Analysis, Nandita Perumal Phd, Goodrarz Danaei, Günther Fink, Mark Lambiris, Christopher R. Sudfeld

Faculty Publications

Undernutrition in early childhood is associated with adverse health and developmental outcomes later in life and remains a persistent global public health problem. Providing small-quantity lipid nutrient supplements (SQ-LNS) to children aged 6-24 months improves child growth and neurodevelopmental outcomes, but the potential long-term benefits to human capital have not been previously estimated. We estimated the potential returns to schooling and lifetime income attributable to increasing coverage of SQ-LNS for children < 2 years of age from 0% to 50% or 90% per five-year birth cohort in five countries (Bangladesh, Burkina Faso, Ethiopia, Pakistan, and Uganda) with a high burden of undernutrition. Random-effects meta-analyses were used to estimate the effect of SQ-LNS on child development using evidence from randomized controlled trials, and to estimate the returns to lifetime income as a function of change in development based on a de novo meta-analysis of observational economic studies. Gains in school years attributable to scaling-up SQ-LNS to 90% coverage ranged from 0.14 million school years (95% uncertainty interval [UI]: 0.064, …

Relationship Between Congestive Heart Failure, Chronic Obstructive Pulmonary Disease, Inflammatory Biomarkers, And Hospital Length Of Stay Among Covid-19 Patients., Alice Aghamie Osuji

Walden Dissertations and Doctoral Studies

COVID-19 has put immense pressure on healthcare facilities, especially in managing patients with comorbidity. This study addressed the association between two important coinfections, congestive heart failure (CHF) and chronic obstructive pulmonary disease (COPD), and their effect on hospital length of stay (LOS) among COVID-19 patients. The study also explored the predictive role of the inflammatory biomarker C-reactive protein (CRP) in prolonged hospitalization, also considering the influence of age and race. This study applied the Biopsychosocial Model and Chronic Care Model (CCM) to examine health outcomes and resource use. A retrospective cohort research design was used to examine medical records of …

The Intersecting Association Of Speaking A Non-Dominant Language And Lower Healthcare Access On Self-Reported Depression Among U.S. Adults: A Cross Sectional Study Using Nhanes Data (2015-March 2020), Vincenzo J. Cornacchione, Corey Linver

OHSU-PSU School of Public Health Annual Conference

Objective: This analytic study examined the joint and independent associations between language preferences and healthcare access on moderate to severe depression among non-institutionalized adults living in the U.S., using data from the 2015 to March 2020 National Health and Nutrition Examination Survey (NHANES).

Methods: In this cross-sectional study design, we analyzed a nationally representative data set comprised of 11,051 participants. Multivariable logistic regression models were used to estimate the joint and independent associations between our dual exposures and moderate to severe depression, adjusting for key demographic variables based on our theoretical framework. We created categorical measures of preferred language (speaking …

Primary Place To Go For Health Care And Its Association With Hpv Prevalence In Us Adults: Results From Nhanes 2013-2016, Amy L. Mcveety, Miyuki Sun

OHSU-PSU School of Public Health Annual Conference

Background: While access to health care is a known risk factor for many infectious diseases, including sexually transmitted infections, little research has investigated the relationship between access to primary care services and prevalent human papillomavirus (HPV) infection. Given HPV’s prevalence in the general population and lack of available treatments, it is necessary to understand possible risk factors to identify areas for intervention. This study uses primary place to go for health services as a proxy measure for access to care, in order to understand which sources of health care are serving patients with the highest prevalence of HPV infections and …

Association Between Arsenic And Other Heavy Metal Exposures Through Drinking Water And Food With Lung Function And Respiratory Symptoms: A Cross-Sectional Study, Sofia I. Chapela Lara, Seth O'Neal Md, Mph For The Cysticercosis Working Group In Peru

OHSU-PSU School of Public Health Annual Conference

Impaired lung function is a major health concern, particularly in children, as it increases the risk of chronic respiratory diseases and long-term morbidity. Environmental exposure to heavy metals (HMs) such as arsenic, lead, cadmium, and manganese has been associated with reduced lung function and respiratory symptoms. However, findings vary by exposure context and population, with limited research in pediatric populations and few studies evaluating the combined effects of multiple HMs. These exposures disproportionally affect marginalized rural communities, especially in low and middle-income countries with mining activities. This cross-sectional study investigated the association between exposure to As and other HMs through …

Association Of Plant-Based Dietary Patterns With Female Reproductive Cancer Incidence And Mortality: A Systematic Review, Esther L. Farley, Scott Moore, Gary A. Giovino, Darryl Somayaji

Campus Research Month

Healthy plant-based eating, a health-related behavior that nurses may promote, has been associated with a decrease in multiple types of cancer. However, the association of a healthy plant-based dietary pattern with decreased female reproductive cancers has not yet been established.

This review of the literature followed PRISMA guidelines to search for the relationship between a healthy plant-based dietary pattern and incidence of and mortality from a breast or gynecological cancer diagnosis. Databases searched for this review included PubMed, EMBASE, CINAHL, and Web of Science.

We identified 27 publications that met the qualifications for inclusion. Twelve studies covered mortality from breast, …

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 …

Irreversible K-Threshold Number Ck(G) And Saturation Probability P[G] For Corona Product And Double Corona Product Graphs, Eric J. Moon, Soumya Bhoumik, Paul Flesher

SACAD: Scholarly Activities

We discuss the Irreversible k-conversion process for graphs, where a vertex becomes saturated and remains saturated indefinitely if at least k of its neighbors are saturated. We investigate sets S₀, which when initially saturated, lead to complete graph saturation. We are interested in the minimum |S₀| = C_k(G), called the k-threshold number. We consider the construction of the Corona Product Graphs (of C_n and K_p). Additionally, we extend our analysis by defining and exploring Double Corona Product Graphs (of C_n and K_p). Then we incorporate …

Associations Between B Vitamin Interactions With Polyunsaturated Fatty Acids And Cognitive Function Among Cognitively Healthy Older People As Modified By Amyloid Status And Sex, Chuliang Zhao, Karen A. Abbott, Chinedu Momoh, Geraint Price, Oliver J. K. Robinson, Sujin Kang, Celeste A. De Jager Loots

Brain and Mind Institute

Background/Objectives: Nutrients such as vitamin B12, folate (B9), and polyunsaturated fatty acids (PUFAs) may independently influence cognitive health, but their combined effects and interactions remain unclear. This study aims to investigate the effects of B12, folate, and PUFAs, including their interactions, on cognitive function in cognitively healthy older adults, considering effect modification by sex and amyloid-beta status.

Methods: A cross-sectional analysis was conducted using data from 321 participants aged 60–85 y enrolled in the UK CHARIOT–PRO SubStudy. Dietary intake was assessed using the Scottish Collaborative Group Food Frequency Questionnaire, and cognitive performance was measured via the Repeatable Battery …

The Epidemiology Of Sports And Recreation Related Toe Fractures In The United States, Dogerno Norceide, Gabriel I. Onor, Oluwatomi Akingbola, William Justice, Nana F. Amponsah, Abimbola Okulaja, Ifeanyichukwu Onor, Michael Okoronkwo, Chibuikem Nwizu, David Pedowitz

School of Medicine Faculty Publications

BACKGROUND: Fractures of the toes are among the most frequently diagnosed lower extremity fractures. In sports, toe fractures may present after diverse mechanisms of injury, varying severity, and varying implications for management. This study aimed to discern trends in toe fractures presenting to US emergency departments (EDs) particularly in association with sports and recreational activities. An additional aim of the study was to identify if rates of toe fracture presentation significantly decreased during the year 2020 at the height of the COVID-19 pandemic. METHODS: We queried the National Electronic Injury Surveillance System (NEISS) database to identify toe fractures presented to …

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 …

Advancing Pandemic Response: Integrated Strategies For Testing, Prediction, And Bias Mitigation, Tianshu Gu

Theses and Dissertations (ETD)

The COVID-19 pandemic, along with prior outbreaks such as SARS and Ebola, has revealed critical gaps in global pandemic preparedness, emphasizing the need for integrated approaches to infectious disease management. This dissertation addresses three key areas of pandemic response: developing scalable screening strategies, constructing reliable predictive models, and mitigating demographic biases in artificial intelligence (AI) models used for healthcare decision-making.

The first study introduces a global screening strategy designed to optimize resource use and increase testing capacity, particularly in low- and middle-income countries (LMICs) where resources are limited. This study leverages pooled testing methods, where multiple samples are combined into …

Statin Use Is Associated With Protection Against Acute Cholangitis In Patients With Primary Sclerosing Cholangitis: A Multicenter Retrospective Cohort Study, Chiraag Kulkarni, George Cholankeril, Touran Fardeen, Joseph Rathkey, Samir Khan, Soumya Murag, Robert Lerrigo, Ahmad Kamal, Ajitha Mannalithara, Prasun Jalal, Aijaz Ahmed, John Vierling, Aparna Goel, Sidhartha R Sinha

Faculty, Staff and Students Publications

Introduction: Patients with primary sclerosing cholangitis (PSC) are at increased risk of acute cholangitis. The epidemiological risks of cholangitis are poorly studied despite the high morbidity associated with this infection. The aim of this study was to understand the impact of statins on acute cholangitis in PSC.

Methods: This multicenter, retrospective cohort study assessed data from 294 patients with PSC at Stanford Medical Center, Baylor Medical Center, and Valley Medical Center. Clinical factors associated with the development of cholangitis were identified using multivariable Cox regression.

Results: The patients were predominantly male (68.7%) with a median age at enrollment of 48 …

The Burden Of Steatotic Liver Disease Before And During The Covid-19 Pandemic: Correspondence To Editorial On “Current Burden Of Steatotic Liver Disease And Fibrosis Among Adults In The United States, 2017–2023”, Donghee Kim, Pojsakorn Danpanichkul, Karn Wijarnpreecha, George Cholankeril, Rohit Loomba, Aijaz Ahmed

Faculty, Staff and Students Publications

No abstract provided.

Addressing The Burden Of Steatotic Liver Disease: The Role Of Transient Elastography: Correspondence To Editorial On “Current Burden Of Steatotic Liver Disease And Fibrosis Among Adults In The United States, 2017–2023”, Donghee Kim, Pojsakorn Danpanichkul, Karn Wijarnpreecha, George Cholankeril, Rohit Loomba, Aijaz Ahmed

Faculty, Staff and Students Publications

No abstract provided.

Effects Of Smoking Behavior On Lung Metastasis In The All Of Us Research Program, Vikram R Shaw, Jinyoung Byun, Younghun Han, Christopher I Amos

Faculty, Staff and Students Publications

Smoking may be associated with an increased risk of lung metastasis in cancers of non-lung origin. We leverage survey and electronic health record data from the diverse All of Us Research Program (AoURP) database to investigate whether smoking and smoking-related behaviors increase the risk of lung metastasis in non-lung primary cancers. The results suggest that cigarette use, measured by four continuous variables, does not increase the risk of lung metastasis in seven common cancer types but demonstrates a small significant effect in a cohort including all types of cancer in the database in both univariable and multivariable analyses. An increased …