Public Health Commons^™

Public Exposure To Outdoor Bioaerosols In Particulate Matter In Las Vegas: Daily And Seasonal Variations, Karey Renee Fortier

UNLV Theses, Dissertations, Professional Papers, and Capstones

Bioaerosols are airborne particles of biological origin including viruses, bacteria, pollen, fungi, and fragments of their metabolic products. Bioaerosol exposure may represent a health risk, in particular for risk groups such as immunosuppressed persons, and those suffering from allergies or respiratory diseases. Bioaerosols of sizes

This study seeks to assess outdoor bioaerosol number concentrations and size distributions in Las Vegas, NV, as the first step in understanding their health risks. PM2.5 and PM10 were collected on black polycarbonate filters for 24-hour duration using MiniVol air samplers on UNLV campus in the spring and fall of 2017. Bioaerosols in these samples …

Telomeres, Nutrition And Mortality: Risk Factors For The Rate Of Telomere Length Decline And The Associations Between Telomere Length, Nutrition And Mortality, Saruna Ghimire

UNLV Theses, Dissertations, Professional Papers, and Capstones

Introduction: Telomeres are nucleoprotein structures located at the ends of eukaryotic chromosomes, thought to protect the DNA from damage. As a person experiences stressors, harmful exposures, and other diseases throughout their life, telomeres are thought to become damaged and their length shortened, decreasing their ability to protect the DNA. Nutrition is an important aspect of healthy aging. Preservation of telomere length (TL) is thought to be one of the mechanisms by which good nutrition can delay or prevent the development of chronic disease and death. Recent evidence of preservation of TL with good nutrition is promising. Thus, the aim of …

Factors Associated With Food Insecurity Among Individuals, Aged Sixty And Older, In Clark County, Nv, Lisa M. Segler

UNLV Theses, Dissertations, Professional Papers, and Capstones

Food insecurity is defined as a lack of consistent access to enough food for an active, healthy life. In Nevada, an estimated 80,000 individuals, aged 60 years or older, were food insecure in 2016. The primary aim of this study was to identify factors that are associated with food insecurity in older adults, aged sixty and older, in Clark County, NV. The secondary aim of this study was to identify which factors interact with each other to explain food insecurity among individuals aged sixty and older, in Clark County, NV. A secondary data analysis was conducted using data collected by …

An Analysis Of Postmastectomy Breast Reconstruction Due To Breast Cancer In Nevada And The United States From 2008-2013, Jenna Webb

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background: In the United States, female breast cancer was the leading cause of new cancer cases from 2011-2015. Since the Women’s Health and Cancer Act of 1998 (WHCRA), the federal government mandates employee and private health insurance providers to cover breast reconstruction if they cover mastectomies. Postmastectomy breast reconstruction (PBR) rates increased after the WHCRA, but these rates have remained relatively low throughout recent years. Objective: The objective of this study was to determine factors associated with women having PBR due to breast cancer in Nevada and the United States from 2008 to 2013. Methods: Using two HCUP database, NIS …

Determinants Of Disparities In The Colorectal Cancer Burden, Karen Elizabeth Callahan

UNLV Theses, Dissertations, Professional Papers, and Capstones

Colorectal cancer (CRC) is the third leading cause of cancer incidence and mortality in the United States, with an estimated 140,000 new cases and 51,000 deaths expected in 2018. Like most cancers, the burden of CRC is unequally distributed among population groups. The current dissertation included two studies filling gaps in knowledge about CRC disparities. Study 1 characterized the relationship between educational attainment and CRC mortality by race/ethnicity. Six years of CRC mortality data (2012-2017) from the diverse state of California, with 30,180 deaths were analyzed. Sex-specific mortality rate ratios (MRR) stratified by race/ethnicity as well as by educational level …

Health Disparities Among Sexual And Gender Minorities, Jennifer Keeley

UNLV Theses, Dissertations, Professional Papers, and Capstones

Decades of research has shown that sexual and gender minorities (SGMs) experience adverse health and mental health outcomes to a greater extent than their heterosexual peers. The need to better understand and eliminate health disparities in the SGM population was recognized by the National Institute on Minority Health and Health Disparities (NIMHD) at NIH. The Secretary of Health at the Department of Health and Human Services approved the designation of the SGM population as a health disparities population in 2016 and called for SGM studies to examine the health needs of the SGM population across SGM subgroups via large representative …

A State Of Uncertainty: An Analysis Of Recent State Legislative Proposals To Regulate Preventive Services In The United States, Maxim Gakh, Cody Cris, Prescott Cheong, Courtney Coughenour

School of Public Health Faculty Research

This policy brief examines preventive services state legislation trends in the United States during uncertainty regarding the Affordable Care Act (ACA), which requires certain coverage of 4 evidence-based preventive services categories without additional patient costs under §2713. We used a legal mapping approach to search for and analyze state legislation related to preventive services proposed or enacted over a 25-month period of ACA uncertainty. We screened 1231 bills and coded the 76 screened-in bills. Next, we determined their characteristics and examined trends. Bills originated in 28 states, and 69.7% were not enacted. Only 3.9% contained requirements contingent on ACA modifications. …

Social Vs. Practical Problems In Attaining A Colonoscopy: Different Patient Profiles?, Barbara A. Curbow, Evelyn C. King-Marshall, Nora Mueller, Travis Hyams, Shahnaz Sultan, Thomas J. George Jr

Journal of Health Disparities Research and Practice

Background: Colonoscopy is an effective procedure for identifying precancerous polyps and cancerous lesions, but it is unlike other cancer screening tools in that it requires sedation and thus assistance from at least one other individual. The intent of this paper was to identify logistical problems in completing the colonoscopy and to examine their relationships with sociodemographic characteristics.

Methods: All eligible patients (n = 2500) from two academic-affiliated colonoscopy centers (one free standing, one hospital-based) were invited to participate in an onsite, pre-colonoscopy survey; patients agreeing to participate (n = 1841, RR = 73.6%) received a $5.00 gift card. Multiple correspondence …

Prescription Medication Misuse Among American Indians In The Midwestern Us, Charley S. Lewis, Jordyn Gunville, Ryan Goeckner, Brian Chase, Lauren Clark, Jianghua He, Won S. Choi, Christine M. Daley

Journal of Health Disparities Research and Practice

Background: Prescription medications, particularly opioids, are often abused rather than used as intended by the prescribing physician. This is well-documented, though little data are available on American Indians. Misuse of other prescription medications is far less documented, but does occur and can have wide-spread effects.

Methods: We used a cross-sectional survey of American Indians in the Midwestern US (N=361) to begin to understand misuse of prescription medications, not necessarily to get high, but for any reason. Participants were recruited for this touchscreen computer-based survey at powwows, health fairs, and other community events through a convenience sample. We asked questions …

Cancer Risk Factors And Screening Behavior Among Korean Americans In The Sf Bay Area, Nhayoung Hwang, Hyunju Kim, Eugenia Yoo, Denny Cha, Winston Tseng Phd, Susan L. Ivey Md, Mhsa

Journal of Health Disparities Research and Practice

Background: Korean Americans (KA) have the highest prevalence of death from cancer among Asian American ethnic groups in the U.S. This KA prevalence rate is also substantially higher than that of non-Hispanic whites, yet little is known about their cancer risk factors. This paper is one of the first studies to explore cancer risk factors and screening behaviors of Korean Americans in the San Francisco Bay Area.

Methods: A survey instrument was created using items from the California Health Interview Survey (CHIS) from 2009-2012, which were translated into Korean. A cross-sectional survey assessing the prevalence of cancer risk factors and …

Examining The Impact Of Race And Rurality On Health Differences Among Overweight Youth Accessing Pediatric Endocrinology Care, Kelsee Halpin, Janelle R. Noel-Macdonnell, Yun Yan

Journal of Health Disparities Research and Practice

Methods: This study examines the impact of race and rurality on health differences, including prevalence of prediabetes and type 2 diabetes (T2D), among overweight children accessing pediatric endocrine specialty care. Cross-sectional analysis of overweight/obese youth 10 to 18 years of age receiving pediatric endocrinology consultation for weight gain, hyperglycemia, and/or T2D from 2013 to 2016 at a Midwest tertiary pediatric center.

Results: The 722 patients were 42% white, 25% black, 22% Hispanic; 88% lived in urban areas and 12% in rural areas. Rurality was determined using zip code approximation of Rural-Urban Commuting Area (RUCA) codes. After adjusting for confounders, black …

Nutrient And Food Group Intakes Of Low-Income Pregnant Women By Race/Ethnicity, Alla M. Hill, Danielle L. Nunnery Phd, Rdn, Ldn, Alice Ammerman Drph, Jigna M. Dharod Phd

Journal of Health Disparities Research and Practice

In an exploratory study, a convenience sample of 148 pregnant women was recruited from a WIC clinic in the southeast region of the U.S. to: 1) Examine and compare daily nutrient and food group intakes of WIC pregnant women to national guidelines, and; 2) Determine racial/ethnic differences in nutrient and food group intakes among WIC pregnant women. Women were selected for the study if they were: ≥ 18 y, in 2^nd trimester of pregnancy, and if they spoke English or Spanish as a first language. Upon recruitment, participants were interviewed to collect information on their socio-demographics, including race/ethnicity. Additionally, …

Utilization Of Media-Driven Technology For Health Promotion And Risk Reduction Among American Indian And Alaska Native Young Adults: An Exploratory Study, Todd M. Sabato

Journal of Health Disparities Research and Practice

Across the developmental spectrum, American Indian and Alaska Native (AI/AN) adolescents and young adults experience considerable behavioral and mental health disparities, including substance abuse, depression, and engagement in sexual behaviors which enhance risk of pregnancy and sexually transmitted infections. Health-focused interventions utilizing digital and media technology hold significant promise among tribal communities, as they have the capacity to eliminate geography-based barriers. Utilizing a sample of 210 self-identified AI/AN students attending tribal colleges, this study identified the most effective technologies and intervention strategies, as well as health seeking patterns and preferences, which may impact implementation and sustainable use in tribal settings. …

Five-Year Trend In Diabetes Clinical Care And Self-Management Among Adults With Diabetes In West Virginia: 2010-2014, Ranjita Misra 2934168, Usha Sambamoorthi

Journal of Health Disparities Research and Practice

Objective: To examine the five-year trend in clinical care and diabetes self-management activities among adults living in the Appalachian state of West Virginia.

Methods: This study used a cross-sectional design with data from the Behavioral Risk Factor Surveillance System in 2010 (N=685) and 2014 (N=958), among noninstitutionalized adults with diabetes. Five-year trend in recommended diabetes clinical care, diabetes self-management activities and diabetes education was analyzed after adjusting for sex, education, income, insurance, age, obesity, comorbid hypertension, race and lifestyle behaviors (exercise and smoking).

Results: A significant increase in percentage of adults with 2 or more A1C tests was …

Native American Weight Loss Movement: Pilot Test Of A Culturally Tailored Weight Loss Program For American Indians, Christine M. Daley, Jason W. Hale, Shelley Bointy, Kelly Berryhill, Joseph Lemaster, Byron J. Gajewski

Journal of Health Disparities Research and Practice

American Indians (AIs) have higher rates of obesity than other racial/ethnic groups, placing them at heightened risk for cardiovascular diseases, diabetes, and certain cancers. Culturally appropriate weight loss interventions may be the key to reducing risk. The most successful program used in AI communities has been the Diabetes Prevention Program (DPP), which limits enrollment to individuals with a clinical diagnosis of pre-diabetes. The purpose of this pilot project was to modify and culturally tailor a weight loss intervention to AI communities in Kansas to improve weight loss related behaviors among those who do not qualify for the DPP. The Native …

Two-Stage Optimal Designs With Survival Endpoint When The Follow-Up Time Is Restricted, Guogen Shan, Hua Zhang

School of Public Health Faculty Research

Background: Survival endpoint is frequently used in early phase clinical trials as the primary endpoint to assess the activity of a new treatment. Existing two-stage optimal designs with survival endpoint either over estimate the sample size or compute power outside the alternative hypothesis space. Methods: We propose a new single-arm two-stage optimal design with survival endpoint by using the one-sample log rank test based on exact variance estimates. This proposed design with survival endpoint is analogous to Simon’s two-stage design with binary endpoint, having restricted follow-up. Results: We compare the proposed design with the existing two-stage designs, including the two-stage …

Rethinking Health Services Measurement For Indigenous Populations, Angela Mashford-Pringle, Ian Ring, Fadwa Al-Yaman, John Waldon, Michelle Chino

School of Public Health Faculty Research

Indigenous people around the world experience shorter life expectancy, poorer health outcomes, and on average have less social capital, than non-Indigenous people in their respective countries. While national goals are to lower mortality and morbidity rates of Indigenous people, much evidence exists that indicates there is almost no Indigenous involvement in data collection, policy development, program implementation and development and measurement of services. A more holistic and culturally relevant framework is presented to improve services and outcomes for Indigenous populations.

Improving Health Data For Indigenous Populations: The International Group For Indigenous Health Measurement, Michelle Chino, Ian Ring, Lisa Jackson Pulver, John Waldon, Malcolm King

School of Public Health Faculty Research

Health disparities between Indigenous and non-Indigenous populations exist in many countries, including those with well-developed statistical systems. The need to improve the measurement and understanding of Indigenous health disparities led to the formation of the International Group for Indigenous Health Measurement (IGIHM), composed of Indigenous and non-Indigenous, government and non-government, statisticians, researchers and health professionals. Since its founding in 2005, the IGIHM has pursued activities to improve health measurement, which in turn have been used for improving the health of Indigenous populations and enhancing Indigenous health knowledge and data.

Rethinking Health Services Measurement For Indigenous Populations, Michelle Chino Dr, Angela Mashford-Pringle, Ian Ring, Fadwa Al-Yaman, John Waldon

School of Public Health Faculty Research

Indigenous people around the world experience shorter life expectancy, poorer health outcomes, and on average have less social capital, than non-Indigenous people in their respective countries. While national goals are to lower mortality and morbidity rates of Indigenous people, much evidence exists that indicates there is almost no Indigenous involvement in data collection, policy development, program implementation and development and measurement of services. A more holistic and culturally relevant framework is presented to improve services and outcomes for Indigenous populations.

"The Great Debate" 2019 - Brookings V. Unlv Debate Team, Brookings Mountain West, University Of Nevada, Las Vegas

Brookings Scholar Lecture Series

Brookings Mountain West, in partnership with the UNLV Debate Team, was proud to host the inaugural UNLV - Brookings Institution event, “The Great Debate.” Representatives from the nationally ranked UNLV Debate Team engaged colleagues from the Brookings Institution in a battle of ideas and policy positions destined to be remembered as one of the great intellectual forums of the 21st century. Featured speakers participated in a modified format of intercollegiate debate rules that allowed teams and individual members the opportunity to craft their arguments and responses in an open and respectful exchange of information to persuade, inform, and entertain audience …

A Qualitative Study On Parental And Community Stakeholder Views Of The Link Between Full-Day Kindergarten And Health In Southern Nevada, Courtney Coughenour, Jennifer Pharr, Maxim Gakh Jd, Mph, Sheila Clark, Prescott Cheong

School of Public Health Faculty Research

Studies show that children who attend full-day kindergarten (FDK) experience both academic and developmental benefits compared to children who attend half-day programs. Sectors outside of health, such as education, can have important intended and unintended impacts on health. The purpose of this qualitative study was to understand perceptions of parental and other stakeholders in Southern Nevada (USA) about the education–health link, and to understand priorities regarding how FDK access could affect health. Two 90-minute focus groups were conducted with 14 adult stakeholder participants representing parents, current and former teachers, and community members. Transcripts were analyzed using conventional content analysis. Eight …

Analysis Of Self-Reported Walking For Transit In A Sprawling Urban Metropolitan Area In The Western U.S., Courtney Coughenour, Hanns De La Fuente-Mella, Alexander Paz

School of Public Health Faculty Research

Walkability is associated with increased levels of physical activity and improved health and sustainability. The sprawling design of many metropolitan areas of the western U.S., such as Las Vegas, influences their walkability. The purpose of this study was to consider sprawl characteristics along with well-known correlates of walkability to determine what factors influence self-reported minutes of active transportation. Residents from four neighborhoods in the Las Vegas Metropolitan Area, targeted for their high and low walkability scores, were surveyed for their perceptions of street-connectivity, residential-density, land-use mix, and retail–floor-area ratio and sprawl characteristics including distance between crosswalks, single-entry-communities, high-speed streets, shade, …

Two-Stage Bagging Pruning For Reducing The Ensemble Size And Improving The Classification Performance, Hua Zhang, Yujie Song, Bo Jiang, Bi Chen, Guogen Shan

Environmental & Global Health Faculty Research

Ensemble methods, such as the traditional bagging algorithm, can usually improve the performance of a single classifier. However, they usually require large storage space as well as relatively time-consuming predictions. Many approaches were developed to reduce the ensemble size and improve the classification performance by pruning the traditional bagging algorithms. In this article, we proposed a two-stage strategy to prune the traditional bagging algorithm by combining two simple approaches: accuracy-based pruning (AP) and distance-based pruning (DP). These two methods, as well as their two combinations, “AP+DP” and “DP+AP” as the two-stage pruning strategy, were all examined. Comparing with the single …

Strategies Employed By Community-Based Service Providers To Address Hiv-Associated Neurocognitive Challenges: A Qualitative Study, Renato M. Liboro, Sean B. Rourke, Francisco Ibanez-Carrasco, Andrew Easton, Daniel Pugh, Claudia Medina, Allan Rae, Paul A. Shuper, Lori E. Ross

Psychology Faculty Research

Background: HIV-associated neurocognitive disorders and other causes of neurocognitive challenges experienced by people living with HIV (PLWH) persist as public health concerns in developed countries. Consequently, PLWH who experience neurocognitive challenges increasingly require social support and mental health services from community-based providers in the HIV sector. Methods: Thirty-three providers from 22 AIDS service organizations across Ontario, Canada, were interviewed to determine the strategies they used to support PLWH experiencing neurocognitive difficulties. Thematic analysis was conducted to determine key themes from the interview data. Results: Three types of strategies were identified: (a) intrapersonal, (b) interpersonal, and (c) organizational. Intrapersonal strategies involved …

Bioaerosol Concentrations And Size Distributions During The Autumn And Winter Seasons In An Industrial City Of Central China, Lung-Wen Chen, Ting Liu, Mi Zhang, John G. Watson, Judith C. Chow, Junji Cao, Hongyu Chen, Wei Wang, Jiaquan Zhang, Changlin Zhan, Hongxia Liu, Jingru Zheng, Naiwen Chen, Ruizhen Yao, Wensheng Xiao

Environmental & Global Health Faculty Research

The ambient bioaerosols were measured in PM2.5 and PM10 samples taken in Huangshi City, Hubei Province, China, during autumn and winter from November 2017 to February 2018. Both the bioaerosol number concentration and size distribution (0.37–16 µm) were obtained by direct fluorescent staining coupled with microscopic imaging. The bioaerosol number concentrations ranged from 0.05 to 3.4 # cm–3 for PM2.5 and from 0.17 to 5.7 # cm–3 for PM10, with averages of 0.90 # cm–3 and 1.9 # cm–3, respectively. In terms of particle number, the bioaerosols were dominated by fine particles (0.37–2.5 µm in diameter), with a larger proportion …

Factors Influencing Healthy Eating Habits Among Low-Income African Americans In Tennessee, Kushal Patel, Jonathon Smith, Jemal Gishe 9637046, Mohamed Kanu, Rosemary Theriot, Jianguo Liu, Yuan Zhou, Margaret Hargreaves

Journal of Health Disparities Research and Practice

Introduction: Poor nutrition and diet are significant contributors to the development of chronic illnesses such as cancer and diabetes, particularly among individuals of lower socioeconomic status (SES).This study examined demographic and lifestyle factors that influenced decisions to engage in healthy eating behaviors among low-income African Americans in three urban Tennessee cities.

Methods: As part of the Meharry Community Networks Program (CNP) needs assessment, a 123-item community survey was administered to assess demographic characteristics and eating behaviors among low-income African Americans. The total sample size was 1116. The primary outcome of interest was the healthy eating habits score which was calculated …

Comparison Of Compliance With Cervical Cancer Screening Among Women Aged 18 And Above In Arkansas And The United States, Sarah N. O'Connor, Jun Tao, L. Joseph Su

Journal of Health Disparities Research and Practice

Introduction: Cervical cancer preys on women without access to preventative screening. Any woman who has developed an invasive case of cervical cancer should be regarded as a failure of screening. Disparities in access to screening, triage, and treatment fuel an uneven distribution in the burden of cervical cancer within the United States; weighing unusually heavy on the Southern States like Arkansas. The purpose of this study was to evaluate demographic and behavioral risk factors for cervical cancer and identify potential barriers which may influence the likelihood of complying with current Pap test recommendations on a state level, in Arkansas, and …

Who Speaks For Me?: Addressing Variability In Informed Consent Practices For Minimal Risk Research Involving Foster Youth, Mary V. Greiner, Sarah J. Beal, Antonio Allen, Vikash Patel, Jareen Meinzen-Derr, Armand Antommaria

Journal of Health Disparities Research and Practice

Background: Youth in protective custody (i.e., foster care) are at higher risk for poorer physical and mental health outcomes compared with those who are not. These differences may be due in part to the lack of research on the population to create evidence-based recommendations for health care delivery. A potential contributor to this lack of research is difficulties in obtaining informed consent for empirical studies in this population. The objective of this study was to describe the approaches to obtaining informed consent in minimal risk studies of foster youth and provide recommendations for future requirements.

Methods: We conducted a …

Racial Discrimination And Preterm Birth Among African American Women: The Important Role Of Posttraumatic Stress Disorder, Amelia Gavin, Nancy Grote, Kyaien Conner, Taurmini Fentress

Journal of Health Disparities Research and Practice

Among African American infants, preterm birth (PTB) is the most frequent cause of infant mortality. In the United States, there remains a stark African American-Non-Hispanic White difference in PTB (< 37 weeks of completed gestation). When compared to Non-Hispanic White infants, African American infants have greater than three times the risk of preterm-related mortality. Prior research studies have examined whether traditional prenatal risk factors explain the African American-Non-Hispanic White difference in PTB. However identification of these factors fails to explain the disparity. The lack of progress in addressing the African American - Non-Hispanic White difference in PTB suggests that exposures to risk factors across the life-course may be vital to addressing the African American-Non-Hispanic White difference in PTB. One potential life-course risk exposure is racial discrimination, which has been shown to influence the increased risk of PTB among African American women. However, research is needed to reveal the mechanisms that underlie the association between racial discrimination and PTB. Posttraumatic stress disorder (PTSD) may be one potential mechanism by which African American women's exposure to racial discrimination contributes to increased risk of PTB. This concept paper strives to advance our understanding of the increased risk of PTB among African American women. Recommendations are suggested to mitigate the impact of racial discrimination and PTSD on the PTB risk among African American women.

Exploring The Cultural Perceptions Of Physical Activity Among Transnational Nigerian Immigrants, Kelechi D. Ibe-Lamberts, Daudet Ilunga Tshiswaka, Abi Fapohunda

Journal of Health Disparities Research and Practice

Background: Transnational Nigerian Immigrants, as other Transnational African Immigrants, are a subset of African immigrants with the unique ability to sustain multi-national ties. These ties could potentially affect health behavior choices and participation in physical activity. Physical Activity has the potential to improve health and prevent chronic diseases; however, there is a lack of literature regarding physical activity and its determinants within the Transnational African Immigrant population in general. This study investigated the cultural factors that shape Transnational Nigerian Immigrants’ perceptions and attitudes towards physical activity.

Methods: Semi-structured, individual interviews supported by photo-elicitation were conducted on 24 Transnational …