Epidemiology Commons^™

Predictors Of Knowledge Of Stroke And Intent To Call 911 Among African Americans, Hyacinth Idu Hyacinth

Walden Dissertations and Doctoral Studies

Stroke is associated with significant health disparity and predominantly affects the elderly. Stroke outcome is significantly improved if an individual is able to get "clot-bursting" medication. A significant predictor of an on-time arrival to the emergency room for treatment in the event of a stroke is the ability to accurately recognize stroke signs and symptoms. The purpose of this study was to determine the factors (demographic, socioeconomic, and educational) that predict the knowledge of stroke signs/symptoms and intent to call 911 in the event of a stroke. The study was grounded in the social ecological theoretical model and analyzed archived …

Exploring Yoga As A Holistic Lifestyle For Sustainable Human And Environmental Health, Julia A. Leischner

Walden Dissertations and Doctoral Studies

Improved health indicators, mental and physical health outcomes, and sustainable lifestyle practices have been found among yoga practitioners. The purpose of this study was to examine the impact of mixed styles of yoga practice on the health and behaviors of yoga practitioners. The relationship between yoga and body mass index (BMI), self-reported disease diagnosis, participation in other types of physical activity, adoption of healthy and sustainable lifestyle and dietary behaviors, perceived improvements in medical conditions that yoga was used to treat, quality of life resulting from yoga practice, and the reasons for beginning and continuing yoga were observed and tested …

Predictors Of Physician Use Of The New Nia Alzheimer's Assessment Protocols, Richard Norman Schultz

Walden Dissertations and Doctoral Studies

Consensus is lacking on early diagnostic criteria and the exact symptoms of Alzheimer's disease (AD). A new, in-office test may help physicians detect the early symptoms of AD, based upon new National Institute of Aging (NIA) criteria. However, a gap exists in knowledge regarding physicians' current use or intent to use the new protocols. Choreographing the descriptive AD terminology in the Diagnostic and Statistical Manual of Mental Disorders IV-TR and the International Classification of Diseases (ICD-10) is recommended. Thus, the purpose of this study was to understand possible contributing factors to physician's use or intent to use of the new …

Nitrate In Private Wells:Knowledge, Oppinions,And Perceptions Of Stakeholders, Augustus D. Jaja

Walden Dissertations and Doctoral Studies

The purpose of this quantitative study was to examine data describing nitrate concentration and cases of congenital cardiac defects. Residents with private wells and other stakeholders need data to make informed environmental decisions about the adverse health implications of nitrate contamination of private well water. Researchers have examined the exposure of nitrate in contaminated groundwater, but they have not examined nitrate levels in unregulated water systems. This gap in the literature highlighted the need to provide nitrate data for future research and private well users. Guided by the social ecological model, a quantitative, cross-sectional, nonexperimental design was used to survey …

Psycho-Social Resilience And Risky Hiv Behaviors Among Black Males Who Have Sex With Males, Wilson Osaro Iyokho

Walden Dissertations and Doctoral Studies

The incidence rate of HIV among Black males having sex with Black males (BMSM) is high compared to that of other racial groups. Researchers have established the association between inappropriate sexual practices, age, income, and environmental determinants and HIV positive status among BMSM. Guided by resilience theory, the purpose of this study was to examine the relationship between HIV risk behavior and resiliency with the goal of identifying a new intervention to mitigate the HIV infection rate in the BMSM community. The theoretical framework used for this study was the resilience theory. This theory is concern with the phenomenon of …

Glioblastoma Multiforme: Geographic Variations In Tumor Size, Treatment Options, And Survival Rate, Susan Rebecca Nohelty

Walden Dissertations and Doctoral Studies

Glioblastoma multiforme (GBM) is a destructive brain cancer that results in death 12 to 15 months after diagnosis. The purpose of this retrospective study was to determine if variations in tumor size at diagnosis, treatment options, and survival rate occur in GBM patients living in urban and rural areas of the United States. Using the behavior model of health services as the theoretical framework, this study used secondary data sets of GBM cases reported from 1988 to 2011 from the Surveillance, Epidemiology, and End Results program. Tumor size was measured in millimeters; treatment was evaluated by ascertaining the number of …

Effects Of Cobalt On Dna Double Strand Break Repair-Deficient Cells, Sean Raph Ms

All Student Scholarship

Epidemiology studies of human workers exposed to particulate cobalt have found increased incidence of lung cancer. A hallmark of lung cancer, chromosome instability(CIN) manifests as either numerical or structural abnormalities, which are thought to result from unrepaired or miss-repaired DNA double strand breaks, homologous recombination (HR) and non homologous end joining (NHEJ). Previous studies have shown that HR protects cells against metal induced CIN while NHEJ does not. We investigated whether this outcome occurs for cobalt.

Smallpox Vaccination Of Laboratory Workers At Us Variola Testing Sites, Sharon J. Medcalf, Laura Bilek, Teresa L. Hartman, Peter C. Iwen, Patricia Leuschen, Hannah Miller, Anne O'Keefe, Harlan Sayles, Philip W. Smith

Journal Articles: Epidemiology

To evaluate the need to revaccinate laboratory workers against smallpox, we assessed regular revaccination at the US Laboratory Response Network's variola testing sites by examining barriers to revaccination and the potential for persistence of immunity. Our data do not provide evidence to suggest prolonging the recommended interval for revaccination.

Prevalence And Factors Associated With Undernutrition And Anaemia Among School Children In Durbete Town, Northwest Ethiopia, Tilahun Alelign, Abraham Degarege, Berhanu Erko

Journal Articles: Epidemiology

BACKGROUND: Information about risk factors of undernutrition and anaemia is useful to design appropriate strategies to control the health problems. In this study, the prevalence and factors associated with undernutrition and anaemia were assessed among school children in Abchikeli and Ayalew Mekonnen Elementary Schools, northwest Ethiopia, in February and March 2010.

METHODS: A cross-sectional study was carried out among 384 school children. Stool samples were examined using single Kato-Katz slide and nutritional status was determined using anthropometry technique. A pre-tested standardized questionnaire was used to gather information on the socio-demographic and the socio-economic status of the school children. Multivariate logistic …

Burden, Causes, And Outcomes Of People With Epilepsy Admitted To A Rural Hospital In Kenya, Symon M. Kariuki, Eddie Chengo, Fredrick Ibinda, Rachael Odhiambo, Anthony Etyang, Anthony Ngugi, Charles R. J. C. Newton

Family Medicine, East Africa

Objective: People with epilepsy (PWE) develop complications and comorbidities often requiring admission to hospital, which adds to the burden on the health system, particularly in low-income countries. We determined the incidence, disability-adjusted life years (DALYs), risk factors, and causes of admissions in PWE. We also examined the predictors of prolonged hospital stay and death using data from linked clinical and demographic surveillance system.

Methods: We studied children and adults admitted to a Kenyan rural hospital, between January 2003 and December 2011, with a diagnosis of epilepsy. Poisson regression was used to compute incidence and rate ratios, logistic regression to determine …

Electroencephalographic Features Of Convulsive Epilepsy In Africa: A Multicentre Study Of Prevalence, Pattern And Associated Factors, Symon M. Kariuki, Steven White, Eddie Chengo, Ryan G. Wagner, Kenneth A. Ae-Ngibise, Angelina Kakooza-Mwesige, Honorati Masanja, Anthony Ngugi, Josemir W. Sander, Brian G. Neville, Charles R. Newton

Family Medicine, East Africa

Objective: We investigated the prevalence and pattern of electroencephalographic (EEG) features of epilepsy and the associated factors in Africans with active convulsive epilepsy (ACE).

Methods: We characterized electroencephalographic features and determined associated factors in a sample of people with ACE in five African sites. Mixed-effects modified Poisson regression model was used to determine factors associated with abnormal EEGs.

Results: Recordings were performed on 1426 people of whom 751 (53%) had abnormal EEGs, being an adjusted prevalence of 2.7 (95% confidence interval (95% CI), 2.5–2.9) per 1000. 52% of the abnormal EEG had focal features (75% with temporal lobe involvement). The …

Prevalence And Factors Associated With Convulsive Status Epilepticus In Africans With Epilepsy, Symon M. Kariuki, Angelina Kakooza-Mwesige, Ryan G. Wagner, Eddie Chengo, Steven White, Gathoni Kamuyu, Anthony Ngugi, Josemir W. Sander, Brian G.R. Neville, Charles R.J. Newton

Family Medicine, East Africa

Objective: We conducted a community survey to estimate the prevalence and describe the features, risk factors, and consequences of convulsive status epilepticus (CSE) among people with active convulsive epilepsy (ACE) identified in a multisite survey in Africa.

Methods: We obtained clinical histories of CSE and neurologic examination data among 1,196 people with ACE identified from a population of 379,166 people in 3 sites: Agincourt, South Africa; Iganga-Mayuge, Uganda; and Kilifi, Kenya. We performed serologic assessment for the presence of antibodies to parasitic infections and HIV and determined adherence to antiepileptic drugs. Consequences of CSE were assessed using a questionnaire. Logistic …

Basic Epidemiology, Center For Leadership In Public Health Practice

Preparedness and Emergency Response Learning Center

Basic Epidemiology, a training course from the USF Center for Leadership in Public Health Practice, develops the awareness and knowledge of public health workers who may be deployed on Field Epidemiology strike teams. It is designed to help them assist local, regional, state, and national epidemiology staff in disease investigations during surge capacity. Basic Epidemiology is a required prerequisite for the IFIRST and IFIRST-2 programs.

Reassessment Of Risk Genotypes (Grn, Tmem106b, And Abcc9 Variants) Associated With Hippocampal Sclerosis Of Aging Pathology, Peter T. Nelson, Wang-Xia Wang, Amanda B. Partch, Sarah E. Monsell, Otto Valladares, Sally R. Ellingson, Bernard R. Wilfred, Adam C. Naj, Li-San Wang, Walter A. Kukull, David W. Fardo

Pathology and Laboratory Medicine Faculty Publications

Hippocampal sclerosis of aging (HS-Aging) is a common high-morbidity neurodegenerative condition in elderly persons. To understand the risk factors for HS-Aging, we analyzed data from the Alzheimer’s Disease Genetics Consortium and correlated the data with clinical and pathologic information from the National Alzheimer’s Coordinating Center database. Overall, 268 research volunteers with HS-Aging and 2,957 controls were included; detailed neuropathologic data were available for all. The study focused on single-nucleotide polymorphisms previously associated with HS-Aging risk: rs5848 ( GRN ), rs1990622 ( TMEM106B ), and rs704180 ( ABCC9 ). Analyses of a subsample that was not previously evaluated (51 HS-Aging cases …

La Paradoja Hispana Epidemiológica: Investigando Las Preconcepciones Y Generalizaciones, Maya H. Sandalow

CMC Senior Theses

En los Estados Unidos, los latinos suelen tener menos acceso a la educación, el trabajo, y el seguro médico en comparación con los blancos no-latinos, pero aun así el grupo parece superar ciertos obstáculos de la salud. Las estadísticas de la población latina muestran mayor longevidad y otras tasas favorables en comparación con los blancos no-latinos. Los expertos han titulado esta contradicción “La Paradoja Hispana Epidemiológica”.

Desafortunadamente, la investigación de la paradoja está llena de generalizaciones y presuposiciones erróneas sobre la población latina diversa. Esta tesis investiga los participantes que producen generalizaciones sobre la supuesta paradoja para mostrar que estas …

Thinking About Ebola, David Brett-Major

Journal Articles: Epidemiology

No abstract provided.

Experimental Evolution Of An Rna Virus In Wild Birds: Evidence For Host-Dependent Impacts On Population Structure And Competitive Fitness, Nathan D. Grubaugh, Darci R. Smith, Doug E. Brackney, Angela M. Bosco-Lauth, Joseph R. Fauver, Corey L. Campbell, Todd A. Felix, Hannah Romo, Nisha K. Duggal, Elizabeth A. Dietrich, Tyler Eike, Jennifer E. Beane, Richard A. Bowen, William C. Black, Aaron C. Brault, Gregory D. Ebel

Journal Articles: Epidemiology

Within hosts, RNA viruses form populations that are genetically and phenotypically complex. Heterogeneity in RNA virus genomes arises due to error-prone replication and is reduced by stochastic and selective mechanisms that are incompletely understood. Defining how natural selection shapes RNA virus populations is critical because it can inform treatment paradigms and enhance control efforts. We allowed West Nile virus (WNV) to replicate in wild-caught American crows, house sparrows and American robins to assess how natural selection shapes RNA virus populations in ecologically relevant hosts that differ in susceptibility to virus-induced mortality. After five sequential passages in each bird species, we …

Does Human Papillomavirus Affect Pregnancy Outcomes? An Analysis Of Hospital Data 2012-2014, Harpriya Kaur, Delf Schmidt-Grimminger, Steven W. Remmenga, Baojiang Chen, K.M. M. Islam, Shinobu Watanabe-Galloway

Journal Articles: Epidemiology

Objective: To estimate the rate of Human Papillomavirus among pregnant women and its impact on the pregnancy outcomes.

Study design: This was a retrospective cohort study of women who sought prenatal care and later delivered at the Nebraska Medical Center from 2012-2014. Human Papillomavirus infection was based on a cytological cervicovaginal diagnosis (Pap test) report. Bivariate and multivariable analyzes were performed using SAS 9.3.

Results: Of the total sample size of 4824 women, 221 (4.4%) were HPV-positive. Women with Human Papillomavirus infection had increased risk of preeclampsia (adjusted OR: 2.83 95% CI: 1.28-6.26) and were also 1.8 times more likely …

Development And Validation Of A Discrete Event Simulation Model To Evaluate The Long Term Use Of Electronic Cigarettes In Us Population, Kunal Saxena

Theses and Dissertations

Introduction: Cigarette smoking is associated with lung cancer, cardiovascular disease, and chronic respiratory conditions. It is responsible for high mortality and morbidity risk in the US population. Smokers find sudden quitting difficult and it is reported that a large number of unassisted quitting attempts are eventually unsuccessful. Electronic cigarette or e-cig is a novel battery-driven, nicotine delivery product, currently being used as a smoking cessation tool by current and former smokers. Since its resemblance to a conventional cigarette, and its non-combustible nature, e-cig use has risen exponentially in the last few years. To address such public health issues, the US …

Influence Of Environmental Exposure On Human Epigenetic Regulation, C. J. Marsit

Dartmouth Scholarship

Environmental toxicants can alter epigenetic regulatory features such as DNA methylation and microRNA expression. As the sensitivity of epigenomic regulatory features may be greatest during the in utero period, when critical windows are narrow, and when epigenomic profiles are being set, this review will highlight research focused on that period. I will focus on work in human populations, where the impact of environmental toxicants in utero, including cigarette smoke and toxic trace metals such as arsenic, mercury and manganese, on genome-wide, gene-specific DNA methylation has been assessed. In particular, arsenic is highlighted, as this metalloid has been the focus …