Clinical Epidemiology Commons^™

Symptom Clusters And Their Association With Health-Related Quality Of Life In Pediatric Cancer Survivors After Treatment Completion, Krishtee Napit

Theses & Dissertations

A critical area of cancer research, symptom management, has evolved from focusing on individual symptoms to recognizing the complexity of co-occurring symptoms, commonly referred to as symptom clusters. However, most studies on pediatric cancer symptom clusters have focused primarily on the treatment phase or long-term survivorship, overlooking the early post-treatment period. This dissertation examines the prevalence of multiple symptoms and symptom clusters in pediatric cancer survivors post-treatment; factors associated with the total number of symptoms and symptom clusters; and the association of the total number of symptoms and symptom clusters with health-related quality of life (HRQoL). We developed and tested …

Schistosoma Haematobium Infection In Ethiopian Children: Evaluating Praziquantel Efficacy, Nutritional Effects, And Diagnosis Using Flukecatcher, Louis Fok

Theses & Dissertations

Urogenital schistosomiasis continues to impact the wellbeing of hundreds of millions of people worldwide and remains a significant public health challenge across Ethiopia. Despite existing knowledge on the disease, there remain significant unanswered questions with regard to its treatment and diagnosis. This dissertation evaluated the efficacy of praziquantel at treating urogenital schistosomiasis, improving nutritional parameters among children and the performance of FlukeCatcher at detecting and determining the intensity of infection. In effecting this, a total of 977 children aged 5 through 15 from the Afar and Gambella regions of Ethiopia were screened for S. haematobium infection using urine filtration microscopy …

Cardiovascular Disease Risk Reduction Program For Hispanics In The Us Midwest: A Culturally Adapted Intervention, Armando De Alba

Theses & Dissertations

Cardiovascular disease (CVD) represents the second leading cause of death in Nebraska (NE), accounting for approximately one in every five deaths. In the state, there are marked ethnic and rural-urban disparities in the prevalence of chronic diseases and resultant deaths. For instance, while the rates in NE of coronary heart disease and myocardial infarction between 2001 and 2010 decreased among non-Hispanic Whites, the rates for Hispanics almost tripled. There is little evidence of CVD risk factor reduction strategies being implemented in Midwestern areas and Hispanic populations.

One promising approach for reducing CVD risk involves health education and lifestyle modification programs …

Non-Tnfi Biologic And Targeted Synthetic Dmards In Rheumatoid Arthritis-Associated Interstitial Lung Disease: A Comparative, Propensity Score-Matched Study Using National Veterans Affairs Data, Halie E. Frideres

Capstone Experience: Master of Public Health

Background/Objectives: There is a paucity of evidence on the safety and effectiveness of non- TNFi biologic therapies in RA-ILD, this study aimed to compare treatment outcomes in RA-ILD between rituximab, abatacept, IL-6i, and JAKi using the Target Trial Emulation Framework.

Methods: We emulated 3 trials comparing abatacept, IL-6i, and JAKi with rituximab (reference). Patients fulfilling validated RA-ILD algorithms initiating one of these non-TNFi b/tsDMARDs were propensity score (PS)-matched (1:1) using national Veterans Affairs (VA) data from 2006 to 2020. PS models included demographics, comorbidities, general health status indicators, and RA- and ILD-related severity measures. Study outcomes were death and respiratory-related …

Quality Of Life And Unmet Needs Of Late-Stage And Metastatic Colorectal Cancer Survivors, Krista Brown

Theses & Dissertations

Colorectal cancer (CRC) is the third leading cause of cancer-related deaths in both men and women and is the second leading cause of cancer deaths when men and women are combined. CRC survivors are living longer with an increase in 5-year survival, rising from 52% in the 1980s to 62% in the 2000s. The objective of this dissertation was to explore the QoL and unmet needs of stage III and IV CRC survivors and contribute to the field of survivorship research through an integrative literature review of the state of the science and a sequential, explanatory mixed methods study.

The …

Rural/Urban Differences In Five-Year Survivorship In Pediatric Cancer In United States, Hong Li

Capstone Experience: Master of Public Health

Background: In the United States, five-year survival rates for pediatric (ages 0-19 years) cancer have improved since the mid-1970s due to treatment improvement. Research on adult cancer patients suggested rural patients have worse survival than urban patients. However, there is a dearth of research on survivorship among children and adolescents diagnosed with cancer.

Aims: The aims of the study were to: 1) examine differences in five-year relative survival rates of pediatric cancer in the United States between children living in urban and rural areas from 2000-2014 and 2) examine differences in a risk of dying from pediatric cancer between children …

The Epidemiology Of Extended Spectrum Beta-Lactamase-Producing Enterobacterales In Nebraska, 2018 – 2021, Axel A. Vazquez Deida

Capstone Experience: Master of Public Health

Background: Extended spectrum beta-lactamase (ESBL)-producing Enterobacterales are considered a serious public health threat by the United States Centers for Disease Control and Prevention. However, surveillance of ESBL-producing Enterobacterales is currently limited to select states and the epidemiology of these antibiotic-resistant bacteria in Nebraska is still not well understood.

Objective: To describe the incidence of ESBL-producing Enterobacterales across local health department (LHD)-jurisdictions as well as at the state-level over time and assess population-specific factors associated with infection or colonization with these pathogens in Nebraska.

Methods: A retrospective, cross-sectional analysis of public health surveillance data reported to the Nebraska Department of …

Clinical Consequences And Determinants Of False Positive Blood Cultures In Adult Hospitalized Patients, Sidra Liaquat

Theses & Dissertations

Blood cultures are the gold standard for detecting blood stream infections. However, in the US, 0.6-6% of all blood cultures get contaminated leading to adverse clinical outcomes such as unnecessarily prolonged hospital stay and antibiotic therapy. Using electronic medical records, we explored the clinical outcomes and patient-specific risk factors of contaminated blood cultures in an era where rapid blood culture testing was being utilized to provide blood culture results within hours. Rapid blood culture test results can help clinicians in early and more effective management of patients with contaminated blood cultures, thus improving clinical outcomes. We also studied the impact …

The Migration Of Carbapenem-Resistant Acinetobacter Baumannii From The Battlefields Of Iraq And Afghanistan To The Healthcare Facilities Of The Veterans Health Administration, Jeffery Rogers

Capstone Experience: Master of Public Health

Multidrug-resistant organisms (MDRO) pose a great threat to health across the globe. That threat is also felt in the Veterans Health Administration (VHA). Wounded warriors returning home from the battlefields of Iraq and Afghanistan may have brought with them MDROs, such as the bacterium Acinetobacter baumannii, as they have transitioned from military service into the VHA facilities. This study investigates the interconnectedness of military service in the Department of Defense (DoD) and a lifetime of care at VHA through a longitudinal tracking of a linked cohort of combat veterans with battlefield injuries and subsequent MDR infections of A. baumannii. …

Association Between Gastroduodenal Ulcer And Age Of Diagnosis Of Head And Neck, Gastroduodenal And Pancreatic Cancer, Rukevwe Madusor

Capstone Experience: Master of Public Health

Background: Cancer is the second leading cause of death in the United States and remains a major public health problem worldwide. Epidemiological studies have demonstrated that insulin like growth factor-1 (IGF-1) is linked to ulcers and most cancers. Although studies have investigated the role of IGF1 in ulcer healing and cancer pathogenesis, the link between ulcer and cancer remains unclear. Hence, we assessed the relationship between ulcers and cancers.

Methods: This study consists of a sample of 180 cancer patients obtain by convenience sampling who were seen at Nebraska Medicine and were enrolled in the integrated cancer repository for cancer …

Surveillance, Prevention And Surgical Treatments For Hepatocellular Carcinoma, Kerui Xu

Theses & Dissertations

Liver cancer is the second-leading cause of cancer death, representing roughly 9.1% of all cancer mortality. Of all primary cancers of the liver, hepatocellular carcinoma (HCC) accounts for roughly 85%. HCC has been increasing in the U.S. and other countries. In particular, HCC places a huge burden on the Chinese population, as China alone consists of approximately 50% of the total HCC cases and deaths. In China, chronic hepatitis B virus (HBV) infection is the leading cause for developing HCC. The two challenges in prevention and control of HCC experienced in China are low rates of HCC screening among the …

Characterization Of Cancer Incidence In Chronic Kidney Disease Patients: A Single Center Study, 2008 – 2018, Jagadeesh Puvvula

Capstone Experience: Master of Public Health

Background: Chronic kidney disease (CKD) is an established risk factor for cardiovascular disease, but the significance of lower Glomerular filtration rate on incidence and mortality from cancer is uncertain. There is evidence that cancer risk and cancer mortality may be increased in individuals with End Stage Renal Disease (ESRD) requiring dialysis or after renal transplantation but whether less severe kidney disease is associated with cancer remains poorly understood.

Some studies indicate that these associations do appear to be organ specific. It has been reported that reduced renal function is associated with an increased risk of cancers of the kidney and …

Matters Of Trust: Examination Of The Patient-Provider Relationship In Cancer Care, Krista A. Brown

Capstone Experience: Master of Public Health

Background: The intangible concept of trust is critical in the patient-provider relationship. Cancer patients may experience positive and negative impacts of trust in this relationship to a higher degree due to the inherently serious nature of their disease and the level of dependence upon treatment providers.

Objective: The goal of this study was to compare colorectal cancer patients’ levels of trust in their primary care physician and oncologist, along with examining trust differences associated with demographics and other characteristics.

Methods: Colorectal cancer patients (n=158) treated at Nebraska Medicine and consented into the Integrated Cancer Repository for Cancer Research IRB …

Epidemiologic And Clinical Profiles Of Uterine Cancer In The Gharbiah Province Of Egypt, Saad Alshahrani

Theses & Dissertations

Background: Uterine cancer is one of the top-ranking cancers of women with wide international variations in incidence rates. Egypt has a lower incidence of uterine cancer than other countries in the Middle East. In addition to the international incidence variation, there are also wide variations in incidence by rural and urban areas within countries. Therefore, this research project focused on the Gharbiah province, north of Cairo in the Nile Delta, with the aims of investigating demographic and clinical characteristics of uterine cancer, assessing rural/urban variation in incidence rates, and evaluating the possible role of hysterectomy in under-estimating the disease incidence …

The Effect Of Agricultural Exposures And Genetics On Respiratory Phenotypes, Lisa W. Boyd

Theses & Dissertations

Agricultural workers are at risk for respiratory diseases, such as chronic obstructive pulmonary disease (COPD) and chronic bronchitis, due to exposures and inflammatory agents found in their work environment. While previous studies have been conducted to examine agricultural effects of chronic respiratory diseases more closely, there are still several significant gaps in the existing literature.

This dissertation explores the relationship between agricultural exposures and respiratory diseases. Utilizing two populations, the Keokuk Country Rural Health Study and the AgLung Study, this research: 1) used principal factor analysis (PFA) to distill exposure data into essential variables characterizing long-term agricultural exposures in order …

Global Trends In Cancer Burden Based On Geographic Location, Socio-Economic Status And Demographic Shift, Sanjib Chowdhury

Theses & Dissertations

The global burden of cancer is rising at an alarming rate. It remains as one of the top causes of morbidity and mortality worldwide. It is predicted that within 2020, there will be 15 million new cases of cancer in the world, with cancer-related deaths increasing to 12 million. According to the World Health Organization (WHO), the global cancer burden is expected to surge 57% worldwide in the next 20 years. A significant rise in cancer burden will occur in the low-income and middle-income (developing) countries not only due to demographic shifts, but also by the transition of risk factors …

Modifiable Barriers To Optimal Outcomes In Gout Management, Brian W. Coburn

Theses & Dissertations

Improving patient outcomes in chronic disease is of critical importance to the future of health care. Gout, affecting 4% of the US population, is a highly treatable chronic disease from which patients experience unnecessarily suboptimal outcomes. In this dissertation, I demonstrate how interrelated patient and provider factors affect patient outcomes in gout. First, I describe how only 14% of gout patients know their serum urate (SU) goal for urate lowering therapy (ULT) despite otherwise being knowledgeable about gout and its treatment. I then demonstrate the importance of multiple patient and provider factors in achieving SU goal. Specifically, I demonstrate that …