Epidemiology Commons^™

Humidity Reduces Rapid And Distant Airborne Dispersal Of Viable Viral Particles In Classroom Settings, Antun Skanata, Fabrizio Spagnolo, Molly Metz, Davida S. Smyth, John J. Dennehy

Publications and Research

The transmission of airborne pathogens is considered to be the main route through which a number of known and emerging respiratory diseases infect their hosts. While physical distancing and mask wearing may help mitigate short-range transmission, the extent of long-range transmission in closed spaces where a pathogen remains suspended in the air remains unknown. We have developed a method to detect viable virus particles by using an aerosolized bacteriophage Phi6 in combination with its host Pseudomonas phaseolicola, which when seeded on agar plates acts as a virus detector that can be placed at a range of distances away from an …

Endocrine Disruptors: Challenges And Future Directions In Epidemiologic Research, V. Ho, L. Pelland-St-Pierre, S. Gravel, M. F. Bouchard, M.-A. Verner, F. Labrèche

Études primaires

Public concern about the impact of endocrine disrupting chemicals (EDCs) on both humans and the environment is growing steadily. Epidemiologic research provides key information towards our understanding of the relationship between environmental exposures like EDCs and human health outcomes. Intended for researchers in disciplines complementary to epidemiology, this paper highlights the importance and challenges of epidemiologic research in order to present the key elements pertaining to the design and interpretation of an epidemiologic study on EDCs.

The conduct of observational studies on EDCs derives from a thoughtful research question, which will help determine the subsequent methodological choices surrounding the careful …

Matters Of Trust: A Comparison Of Patient-Provider Trust In Colorectal Cancer Survivors Using The Trust In Oncologist Scale, Krista Brown, Jungyoon Kim, Shinobu Watanabe-Galloway, Lynn Harland, Jason M. Foster

Journal Articles: Epidemiology

Objective: Trust is a vital component of the patient-provider relationship. Higher trust is associated with increased adherence to treatment and improved outcomes. The purpose of this study was to compare colorectal cancer (CRC) survivors' reported trust toward their primary care physician (PCP) and oncologist (ONC).

Methods: CRC survivors (n=62) were surveyed using the Trust in Oncologist (TiOS) instrument that assessed five domains (honesty, fidelity, caring, competence, and global/overall) using a 5-point Likert scale. Social and demographic variables were analyzed using nonparametric tests.

Results: Mean trust was higher toward the ONC compared to the PCP across all TiOS domains (P=0.001-0.023). Trust …

Covid-19 Outcomes In Myasthenia Gravis Patients: Analysis From Electronic Health Records In The United States, Youngran Kim, Xiaojin Li, Yan Huang, Minseon Kim, Aziz Shaibani, Kazim Sheikh, Guo-Qiang Zhang, Thy Phuong Nguyen

Faculty, Staff and Student Publications

BACKGROUND: Myasthenia gravis (MG) is an autoimmune, neuromuscular condition and patients with MG are vulnerable due to immunosuppressant use and disease manifestations of dyspnea and dysphagia during the coronavirus disease 2019 (COVID-19) pandemic.

METHODS: We conducted a retrospective cohort study using the Optum® de-identified COVID-19 Electronic Health Record (EHR) dataset. Primary outcomes, such as hospitalization, ventilator use, intensive care unit (ICU) admission, and death in COVID-19 patients with MG, were compared with those of COVID-19 patients without MG: the subgroups of non-MG included those with rheumatoid arthritis (RA), systemic lupus (SLE), and multiple sclerosis (MS). We further analyzed factors affecting …

Characterizing Cancer And Covid-19 Outcomes Using Electronic Health Records, Youngran Kim, Liang Zhu, Huili Zhu, Xiaojin Li, Yan Huang, Chunhui Gu, Heather Bush, Caroline Chung, Guo-Qiang Zhang

Faculty, Staff and Student Publications

PURPOSE: Patients with cancer often have compromised immune system which can lead to worse COVID-19 outcomes. The purpose of this study is to assess the association between COVID-19 outcomes and existing cancer-specific characteristics.

PATIENTS AND METHODS: Patients aged 18 or older with laboratory-confirmed COVID-19 between June 1, 2020, and December 31, 2020, were identified (n = 314 004) from the Optum® de-identified COVID-19 Electronic Health Record (EHR) derived from more than 700 hospitals and 7000 clinics in the United States. To allow sufficient observational time, patients with less than one year of medical history in the EHR dataset before their …

"Don't Know Where To Go For Help": Safety And Economic Needs Among Violence Survivors During The Covid-19 Pandemic, Leila Wood, Elizabeth Baumler, Rachel Voth Schrag, Shannon Guillot-Wright, Dixie Hairston, Jeff Temple, Elizabeth Torres

Faculty, Staff and Student Publications

The COVID-19 pandemic and related quarantine has created additional problems for survivors of interpersonal violence. The purpose of this study is to gain a preliminary understanding of the health, safety, and economic impacts of the COVID-19 pandemic on people that are experiencing or have previously experienced violence, stalking, threats, and/or abuse. An online survey, open from April to June 2020, was taken by people with safety concerns from interpersonal violence. Participants were recruited from IPV and sexual assault-focused agencies, state coalitions, and social media. Quantitative data were summarized using descriptive methods in SPSS and coding methods from thematic and content …

Trends And Correlates Of Breakthrough Infections With Sars-Cov-2, Jose-Miguel Yamal, Savitri Appana, Mengxi Wang, Luis Leon-Novelo, Eric Bakota, Yuanqing Ye, Shreela Sharma, Alanna C Morrison, Dritana Marko, Stephen H Linder, Alison Rector, Katelyn K Jetelina, Eric Boerwinkle, Marcia De Oliveira Otto

Faculty, Staff and Student Publications

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) delta variant has been hypothesized to decrease the efficacy of COVID-19 vaccines. Factors associated with infections with SARS-CoV-2 after vaccination are unknown. In this observational cohort study, we examined two groups in Harris County, Texas: (1) individuals with positive Nucleic Acid Amplification test between 12/14/2020 and 9/30/2021 and (2) the subset of individuals fully vaccinated in the same time period. Infected individuals were classified as a breakthrough if their infection occurred 14 days after their vaccination had been completed. Among fully vaccinated individuals, demographic and vaccine factors associated with breakthrough infections were …

Incidence Rate Of Psychiatric Disorders In 2020: The Pivotal Role Played By Sars-Cov-2 Infection, Antonio L Teixeira, Regina M Hansen, Joseph S Wozny, Caroline M Schaefer, Rodrigo Machado-Vieira, Lokesh Shahani, Scott D Lane, Jair C Soares, Trudy M Krause

Faculty, Staff and Student Publications

IMPORTANCE: The Coronavirus Disease (COVID-19) pandemic has significantly impacted mental health outcomes. While the frequency of anxiety and depressive symptoms has increased in the whole population, the relationship between COVID-19 and new psychiatric diagnoses remains unclear.

OBJECTIVE: to compare the population incidence rate of emergence of de novo psychiatric disorders in 2020 compared to the previous years, and to compare the incidence rate of new psychiatric disorder diagnoses between people with vs without COVID-19.

DESIGN, SETTING, AND PARTICIPANTS: This study utilized administrative claims data from the Clinformatics® Data Mart database, licensed from Optum®. The study is a cross-sectional analysis that …

The Association Of Suicidality With Video Gaming And Physical Inactivity Among U.S. Adolescents, Mary Colleen Cyrus

Walden Dissertations and Doctoral Studies

Suicide represents a leading cause of death in U.S. young people, and the rate is increasing. Although young people are spending more time each day playing video or computer games, there is limited research on the association, if any, between playing video games and suicidality. The purpose of this study was to identify whether there is a statistically significant association between video gaming, physical inactivity, and suicidality (suicidal ideation, planning, and attempts). Age, race, gender, and being bullied electronically and in school were assessed as potential confounding variables. The interpersonal theory of suicidal behavior and the social-ecological theory served as …

Covid-19 Vaccination In Palestine/Israel: Citizenship, Capitalism, And The Logic Of Elimination, Nicolas Howard, Emily Schneider

Sociology & Criminal Justice Faculty Publications

Despite Israel’s responsibility under international law to combat the spread of contagious diseases and epidemics in its occupied territories, Israeli officials have refused to distribute COVID-19 vaccines to Palestinians in the West Bank and Gaza Strip. Through a critical discourse analysis of Israeli officials’ statements regarding Israel’s COVID-19 vaccination campaign, this paper explores how Israel evades this responsibility while presenting itself as committed to public health and human rights. We find that Israeli officials strategically present Palestinians as an autonomous nation when discussing COVID-19 vaccinations, despite Israel’s ongoing attempts to prevent the creation of a Palestinian state. Relatedly, Israel justifies …

An Analysis Of Georgia Mothers Who Gave Birth In 2015 And 2016 Without Receiving Prenatal Care, Joncel Stephens, Shanta R. Dube, Merrilee Gober

Journal of the Georgia Public Health Association

Background: The present study characterizes the population of women residing in the state of Georgia who did not receive prenatal care before giving birth to a live infant. The association between mother’s place of residence (rural/non-rural) and preterm delivery was also examined.

Methods: This study examined data obtained from the Georgia Department of Public Health which includes data for 7,062 mothers who did not receive prenatal care before giving birth to a live infant in Georgia in the years 2015 and 2016. Data on the resulting births was also studied. Descriptive analyses of the following variables were used …

Selective Participation In Syphilis Partner Services And Implications For Control Efforts, Fulton County, Georgia, 2013-2015, Sarah Hamid, Udodirim N. Onwubiko, David P. Holland, Allison T. Chamberlain

Journal of the Georgia Public Health Association

Background. Partner services is an important component of syphilis control, but not all persons with syphilis participate, limiting the strategy’s potential effectiveness and possibly introducing selection biases into analyses of risk factors for reinfection. This study aimed to describe demographic and clinical differences between partner-services participants and non-participants in Fulton County, Georgia, and to assess the association between participation and syphilis re-diagnosis.

Methods. Using surveillance data, we identified primary and secondary syphilis cases in Fulton County with a first diagnosis in 2013-2015. We compared the distributions of demographic and clinical characteristics between participants and non-participants using chi-squared tests. …

Sociodemographic Factors As Predictors Of Low Influenza Vaccination In Chicago, Illinois, Ingrid L. Jeske

Walden Dissertations and Doctoral Studies

Outbursts of seasonal influenza contribute to morbidity and mortality in the United States. Influenza is a contagious disease caused by influenza viruses. The main subtypes of the influenza virus are Type A and Type B. Influenza vaccines are among the most effective methods in preventing the spread of the influenza virus because they offer the best immune defense. However, health care providers face significant challenges due to low patient compliance with current vaccine recommendations and misinformation. Scholars have yet to expand and further explore the reasons for the gap in influenza vaccination between White individuals and minorities, such as the …

Predictors Of Homelessness Among Female Veterans And Civilians, Victoria Caridad Justiniano Quinones

Walden Dissertations and Doctoral Studies

Homelessness among female veterans is a problem that is likely to increase as growing numbers of women in the U.S. military reestablish themselves into their communities as veterans. There has been increasing concern about the greater risk for homelessness found among female veterans when compared to their nonveteran counterparts, so further investigation of homeless incidence by gender is also warranted. This quantitative, exploratory study was grounded in the social ecological theory, the Balshem and colleagues conceptual model of risk factors for veteran homelessness, and the Susser, Moore, and Link conceptual model which investigated causal pathways that are possible risk factors …

Risk Factors Of Infant Mortality Among Sub-Saharan Immigrants In The United States, Roland Lankah

Walden Dissertations and Doctoral Studies

While prepregnancy body mass index (BMI), gestational weight gain (GWG), and birthplace have been suggested to play a key role in predicting infant mortality outcomes, they have not been thoroughly investigated across all races/ethnicities. The purpose of this study was to examine the associations between prepregnancy BMI, GWG, birthplace as independent variables, and infant mortality as the outcome variable within the United States Sub-Saharan African Immigrants (SSAI). A quantitative cross-sectional study design grounded in the biopsychosocial model was used. Data were extracted from the 2017-2018 natality-linked birth/infant death file from the Centers for Disease Control and Prevention Wonder Database. It …

Perceptions Of Hiv Testing Among African-Born Immigrants In Washington State, Phoebe Kirigo Mugo

Walden Dissertations and Doctoral Studies

African born immigrants (ABIs) face challenges associated with HIV testing. As a result, many ABIs are not tested for HIV, and this population is among some of the most diagnosed at late stages of HIV/AIDS. The purpose of this qualitative phenomenological study was to explore and seek to understand the lived experiences of ABI adults ages 25 to 49 living in Washington State. I gathered data to gain their perceptions of HIV testing through in-depth interviews. The study was informed by the health belief model, which helped to understand the complex nature of healthcare-seeking behaviors among this population and how …

Risk Factors Associated With Type 2 Diabetes Among Adults In Alabama, Peter Okeke

Walden Dissertations and Doctoral Studies

In the 21stcentury Diabetes mellitus is recognized as one of the most important public

health challenges that carry a substantial individual and community burden.

It is necessary to do a detailed search regarding DM2 from adolescence till adulthood is in

Alabama which should aim to provide recent information. T2D is influenced by a many

factors including demographics including age, sex, income level, educational, BMI,

physical activities, etc. Identification of the associated risk factors is very important to

inform decision making by concerned bodies and T2D management. The study aimed to

examine the risk factors associated with T2D in adults aged …

Non-Disclosure Of Child Sexual Abuse: The Lived Experience Of Victims In South Africa, Chima Obiora Ozor

Walden Dissertations and Doctoral Studies

Child sexual assault (CSA) has been reported all over the world. Studies indicated that South Africa has one of the highest incidences with far reaching social, physical and emotional consequences. However, non-disclosure is common, which increases the risk of revictimization. Understanding the complexities surrounding the low reporting and non-disclosure will provide guidance for better intervention of CSA in South Africa. This study explored the past experiences of adults who were sexually abused as minors, and how their experiences and outcomes may have been influenced by factors at the micro, meso, macro, and chrono-system levels of Bronfenbrenner’s social ecological model. The …

Impact Of Poverty On Antibiotic Prescribing Rates In The United States Through Mediation Effects Of Underlying Health Conditions, Nato Tarkhashvili

Walden Dissertations and Doctoral Studies

Resistance to antibiotics among bacteria develops largely due to frequent use of antibiotics in human and animal medicine. Little is known about how patients’ socioeconomic factors, in conjunction with chronic health conditions, impact antibiotic prescribing rates in the United States. The research questions aimed to explore the relationship between poverty and antibiotic prescribing rates while also adjusting for confounders such as population aged ≥ 65, physician density, prevalence of obesity, diabetes, and chronic obstructive pulmonary disease (COPD). The relationships were evaluated using a quantitative, ecological study design using the ecosocial theory and mediation analysis of 2020 survey results provided by …

Vitamin K Deficiency And Ischemic Stroke In Atrial Fibrillation Patients On Warfarin, Kimberly Therese Thompson

Walden Dissertations and Doctoral Studies

Individuals with poor nutritional vitamin K status can suffer from atrial fibrillation (AF) due to misinterpretation of warfarin instructions by healthcare providers. The purpose of this quantitative study was to determine if there was an association between inadequate dietary vitamin K intake in AF patients and stroke outcomes to address the lack of research surrounding stroke outcomes in patients with true vitamin K deficiency. Grounded in the health belief model, this study assessed if individual beliefs from health education influenced the nutritional quality of their diet and health outcomes. The study is a secondary data analysis of the Framingham Heart …

Assessment Of Multidrug Resistance Among Tuberculosis Patients In Lesotho, Jerry Yakubu Yahaya

Walden Dissertations and Doctoral Studies

The emergence of multidrug-resistant tuberculosis (MDR-TB) jeopardizes the tremendous efforts in the fight against tuberculosis in Lesotho. To understand the occurrence of MDR-TB, it is important to identify the associated risk factors and how to address them. There is a literature gap on the sociodemographic risk factors associated with MDR-TB in Lesotho. This study assessed whether there is any significant association between age, employment, income, sex, education, place of residence and MDR-TB. The association between HIV and MDR-TB was also evaluated. Guided by the health belief model and social cognitive theory, a retrospective case-control study design and a proportionate stratified …

Gestational Weight Gain, Level Of Education, And Infant Mortality Among African American Women, George Lee Amanambu

Walden Dissertations and Doctoral Studies

Abstract

African American (AA) women in Mississippi have a higher burden of infant mortality, especially those with low income and educational levels, as compared to other regions of the country. However, it is unknown if abnormal gestation weight gain (GWG) is contributing to this increased burden. This quantitative cross-sectional study examined the association between GWG (25-35lbs), level of education, income, and infant mortality among AA women with normal prepregnancy body weight who were between 30 to 47 years old in the state of Mississippi from 2016 to 2018. Biopsychosocial and ecosocial models were used as the theoretical foundation to design …

The Influence Of Race And Ethnicity On The Prevalence Of Social Stigma For People With Type 1 Diabetes Mellitus, Donielle Hyde

Walden Dissertations and Doctoral Studies

Various studies attempting to evaluate the prevalence of health-related social stigma in people with type 1 diabetes mellitus (T1DM) identified themes that coincide with increased prevalence including anxiety, low self-esteem, depression, fear of judgement, anger, and feeling ashamed. This phenomenon is believed to be due to the lack of knowledge and understanding about the differences between the diagnosis, treatment, and prevention strategies for T1DM and type 2 diabetes mellitus (T2DM). The Resilient, Empowered, Active Living intervention dataset (n=115) was utilized to further examine this phenomenon by determining whether race and ethnicity influence the prevalence of the following health-related social stigma …

Diabetes, Obesity, Geographic Location Of The Patient And Clostridium Difficile Infection In The United States, Mary (Maribeth) Greenway

Walden Dissertations and Doctoral Studies

AbstractClostridium difficile infection (CDI) is a major nosocomial threat to be reckoned with in the current health care setting in the United States. Advancing age, underlying chronic disease associated with inflammation (including Diabetes Mellitus Type I ([DMI]), Diabetes Type II ([DMII]), and obesity), trauma, immunodeficiency and other factors that diminish the overall health of an individual, and increase an individual’s susceptibility to CDI. The ecological framework was used to determine the relationship between geographic, chronic diseases and the occurrence of infectious diseases. To continue enhancing knowledge related to CDI susceptibility this quantitative study used the 2010 National Hospital Discharge Survey …

Bullying, Participation In Violence, Suicidal Ideation, And Behavior Among African American Youth, Kierystan Lorquoyea Johnson

Walden Dissertations and Doctoral Studies

Suicide is the second leading cause of death among adolescent, teens, and young adults. Suicidal ideation is a predictor of suicide attempts. Guided by the integrated motivational-volitional model and social cognitive theory, Youth Risk Behavior Surveillance Survey data were used to investigate whether traditional bullying, cyberbullying, and participation in physically violent behavior (independent variables) were associated with suicidal ideation and behavior (dependent variables) among African American high school aged youth controlling for age, gender, physical, and sexual abuse. It was found that experiencing traditional bullying increased suicidal ideation significantly, as there is an 82% increase in likelihood. There was also …

Microaggression Experiences Among African American Women And Their Effects On Health In Academia, Anta'sha Moni Jones

Walden Dissertations and Doctoral Studies

Racial microaggressions are brief daily negative verbal behaviors and environmental slights directed as intentional or unintentional towards minorities. These negative interactions lead minorities to feel powerless and oppressed in their environments. These adverse experiences result from stressors in their environment that negatively affect the human body by causing acute and chronic stress. This qualitative study aimed to investigate the relationship between personal, racial microaggression experiences, and their impact on health through a phenomenological approach. The critical race theory provided a framework to explore and understand how systematic discrimination experiences impacted the 17 African American faculty member participants’ health. A phenomenological …

External Validation And Modification Of A 30-Day Readmission Risk Prediction Model For Heart Failure Patients, Debra Kelly

Walden Dissertations and Doctoral Studies

The development and validation of 30-day readmission risk prediction models, such as the LACE index, have been of interest to researchers and healthcare organizations, especially since the Centers for Medicare and Medicaid Services began to impose monetary penalties on hospitals with higher than expected 30-day readmission rates. However, there is a lack of consensus concerning the efficacy of the LACE index in the heart failure population. The purpose of the study was to examine the discriminative accuracy of the LACE index to predict all-cause 30-day readmission for heart failure patients and to build a modified 30-day readmission risk prediction model …

Stigma And Discrimination’S Effect On Hiv Testing Of Pregnant Women In Nigeria, Charles Echezona Nzelu

Walden Dissertations and Doctoral Studies

The utilization of HIV testing services among pregnant women in Nigeria has not been optimal. Although much is known about the determinants of HIV testing among pregnant women, there is a gap in knowledge on determinants for pregnant women infected with the virus, specifically whether stigma and discrimination are barriers. The purpose of this study was to examine the effect of stigmatizing attitudes and personal knowledge of discriminatory practices towards persons living with HIV/AIDS on the decision by pregnant Nigerian women aged 15-49 years to test for HIV during antenatal visits or childbirth. The health belief model served as the …

Health Department Prevention/Education Plans And Perceived Risks Of Zika Infection, Lacey Jacques

Walden Dissertations and Doctoral Studies

AbstractZika virus is an infectious disease caused by the bite of an infected mosquito that has been linked to increased rates of microcephaly and other devastating birth defects. The existing body of knowledge has focused on the individual-level factors that influence a person’s decisions about prevention activities and risk perceptions related to Zika virus. The purpose of this study was to determine the relationship between state-level plans for prevention and education and individual-level risk perceptions. Rosenstock’s health belief model lays a foundation for why individuals make the health decisions they do and helps explain how these can be influenced for …

Health Department Prevention/Education Plans And Perceived Risks Of Zika Infection, Lacey Jacques

Walden Dissertations and Doctoral Studies

AbstractZika virus is an infectious disease caused by the bite of an infected mosquito that has been linked to increased rates of microcephaly and other devastating birth defects. The existing body of knowledge has focused on the individual-level factors that influence a person’s decisions about prevention activities and risk perceptions related to Zika virus. The purpose of this study was to determine the relationship between state-level plans for prevention and education and individual-level risk perceptions. Rosenstock’s health belief model lays a foundation for why individuals make the health decisions they do and helps explain how these can be influenced for …