Epidemiology Commons^™

Using Big Data Analytics To Improve Hiv Medical Care Utilisation In South Carolina: A Study Protocol, Bankole Olatosi, Jiajia Zhang, Sharon Weissman, Jianjun Hu, Mohammad Rifat Haider, Xiaoming Li

Faculty Publications

Introduction Linkage and retention in HIV medical care remains problematic in the USA. Extensive health utilisation data collection through electronic health records (EHR) and claims data represent new opportunities for scientific discovery. Big data science (BDS) is a powerful tool for investigating HIV care utilisation patterns. The South Carolina (SC) office of Revenue and Fiscal Affairs (RFA) data warehouse captures individual-level longitudinal health utilisation data for persons living with HIV (PLWH). The data warehouse includes EHR, claims and data from private institutions, housing, prisons, mental health, Medicare, Medicaid, State Health Plan and the department of health and human services. The …

Fraud Detection Protocol For Web-Based Research Among Men Who Have Sex With Men: Development And Descriptive Evaluation, April M. Ballard, Trey Cardwell, April M. Young

Epidemiology and Environmental Health Faculty Publications

Background: Internet is becoming an increasingly common tool for survey research, particularly among “hidden” or vulnerable populations, such as men who have sex with men (MSM). Web-based research has many advantages for participants and researchers, but fraud can present a significant threat to data integrity.

Objective: The purpose of this analysis was to evaluate fraud detection strategies in a Web-based survey of young MSM and describe new protocols to improve fraud detection in Web-based survey research.

Methods: This study involved a cross-sectional Web-based survey that examined individual- and network-level risk factors for HIV transmission and substance use among young MSM …

Association Of Serum Pcsk9 With Carotid Artery Thickness And Carotid Lesions In Women With Hiv And Hepatitis C Virus, Michael Patrick Searles

Legacy Theses & Dissertations (2009 - 2024)

Background: Increase in risk for coronary artery disease (CAD) is a well-documented for HIV-infected (HIV+) populations. A precursor of cardiovascular events in HIV+ populations are non-calcified plaque (lesion) formations and can be associated with arterial inflammation, monocyte aggregation and dendritic cell activation. PCSK9 a known modulator of LDL cholesterol, has also been shown to contribute to inflammation, dendritic cell activation, monocyte aggregation and potentially plaque formations.

Social And Structural Barriers To Safer Sex Among Heterosexual Female Sex Workers, Erika Nikole Harding-Davis

Walden Dissertations and Doctoral Studies

Individuals infected with HIV through heterosexual contact made up 24% (9,578) of all new infections in the United States. Female sex workers are at increased risk of getting HIV and other sexually transmitted infections (STI) because they may be more likely to participate in risky sexual behaviors including sex with multiple partners and condom-less anal/vaginal sex. Guided by the syndemic theory, the purpose of this study was to explore the relationships between social and structural factors (homelessness, substance use, immigration status, and use of healthcare) and risky sexual behaviors (condom-less vaginal sex and multiple sex partners) among female sex workers …

Substance Use Patterns Among Women Living With Hiv Compared With The General Female Population Of Canada, Mostafa Shokoohi, Greta R Bauer, Angela Kaida, Ashley Lacombe-Duncan, Mina Kazemi, Brenda Gagnier, Alexandra De Pokomandy, Mona Loutfy

Epidemiology and Biostatistics Publications

BACKGROUND: HIV infection and substance use synergistically impact health outcomes of people with HIV. In this study, we assessed the prevalence of substance use among women living with HIV (WLWH) and compared them with expected values from general data.

METHODS: Cigarette smoking, frequency of alcohol consumption, last-month non-prescribed cannabis use (vs. last-year use), and last 3 months regular (≥once/week) and occasional (

RESULTS: Compared to expected estimates from general population women, a higher proportion of WLWH reported daily cigarette smoking (SPD: 26.8% [95% CI: 23.9, 29.7]), smoking ≥20 cigarettes/day (SPD: 11.6% [9.8, 13.6]), regular non-prescribed cannabis use (SPD: 8.0% [4.1, …

Spatial Distribution Of Partner-Seeking Men Who Have Sex With Men Using Geosocial Networking Apps: Epidemiologic Study, Angel B. Algarin, Patrick J. Ward, W. Jay Christian, Abby E. Rudolph, Ian W. Holloway, April M. Young

Epidemiology and Environmental Health Faculty Publications

Background: Geosocial networking apps have made sexual partner-seeking easier for men who have sex with men, raising both challenges and opportunities for human immunodeficiency virus and sexually transmitted infection prevention and research. Most studies on men who have sex with men geosocial networking app use have been conducted in large urban areas, despite research indicating similar patterns of online- and app-based sex-seeking among men who have sex with men in rural and midsize cities.

Objective: The goal of our research was to examine the spatial distribution of geosocial networking app usage and characterize areas with increasing numbers of partner-seeking men …

Implementation Of Prevention Of Mother To Child Transmission Of Hiv Program In South Jakarta, Fase Badriah, Minsarnawati Tahangnacca, Raihana Alkaff, Takeru Abe, Laily Hanifah

Kesmas

Even though Prevention of Mother to Child Transmission (PMTCT) program has been running in Indonesia since 2006, the proportion of human immunodeficiency virus (HIV)-infected pregnant women remains high in some districts in Indonesia. The PMTCT program aims to reduce transmission of HIV from mother to child. Thus it requires an examination of the PMTCT program implementation. The study was a qualitative study on PMTCT program implementation in South Jakarta, Indonesia, whereas the proportion of children with HIV positive in the area was quite high. The analysis used domain analysis by looking the implementation of PMTCT as a system consisting of …

Global Stability For A 2n + 1 Dimensional Hiv/Aids Epidemic Model With Treatments, Olusegun Michael Otunuga

Mathematics Faculty Research

In this work, we derive and analyze a 2n + 1-dimensional deterministic differential equation modeling the transmission and treatment of HIV (Human Immunodeficiency Virus) disease. The model is extended to a stochastic differential equation by introducing noise in the transmission rate of the disease. A theoretical treatment strategy of regular HIV testing and immediate treatment with Antiretroviral Therapy (ART) is investigated in the presence and absence of noise. By defining R0, n, Rt, n and Rt,n as the deterministic basic reproduction number in the absence of ART treatments, deterministic basic reproduction number in the presence of …

Hiv-Related Knowledge, Attitudes, And Behaviors In Two Low Resource Settings, Candice Lynn Collins

Electronic Theses and Dissertations

Two Human Immunodeficiency Virus (HIV) outbreaks occurred almost simultaneously in the United States (US) (2014-2015) and in Cambodia (2015). Information is lacking on HIV-related knowledge, stigmatizing attitudes, and high-risk behaviors (KAB) among the general population, which may affect the transmission of HIV and lead to outbreaks. The current study aimed to: 1) assess KAB among the general population in a high-risk county in the US, 2) analyze KAB among the general population of Cambodia, and 3) compare KAB across samples from a high-risk county in Northeast Tennessee and a province in Cambodia. Tennessee data were collected in 2017 and Cambodian …

An Hiv-Positive Patient With Copd Admitted To The Icu With Respiratory Failure, Bhavani Puskur, Veronica Corcino, Srikant Ramachandruni, Viswanathan Nagarajan, Forest W. Arnold

The University of Louisville Journal of Respiratory Infections

No abstract provided.

Impact Of Adverse Childhood Experiences On Hiv Risk Behaviors Using A Nationally Representative Sample From 2011 And 2012, Elaine Loudermilk, Megan Quinn, Liang Wang

Appalachian Student Research Forum

Introduction: Adverse childhood experiences (ACEs) have been linked with negative physical and mental health outcomes in adulthood. A limited amount of literature has discussed the impact of individual ACEs on HIV risk behaviors using nationally representative data.

Objective: This study investigated how ACEs impact HIV risk behaviors using cross-sectional data from the 2011 and 2012 Behavioral Risk Factor Surveillance System (BRFSS).

Methods: Data were obtained from BRFSS for 2011 and 2012. Only states that answered the optional ACE questionnaire were included in the study. All ten ACEs were categorized into abuse (parents physically hurt you in any way or parents …

Hiv Clustering In Mississippi: Spatial Epidemiological Study To Inform Implementation Science In The Deep South, Thomas J. Stopka, Lauren Brinkley-Rubinstein, Kendra Johnson, Philip A. Chan, Marga Hutcheson, Richard A. Crosby, Deirdre Burke, Leandro Mena, Amy Nunn

Health, Behavior & Society Faculty Publications

Background: In recent years, more than half of new HIV infections in the United States occur among African Americans in the Southeastern United States. Spatial epidemiological analyses can inform public health responses in the Deep South by identifying HIV hotspots and community-level factors associated with clustering.

Objective: The goal of this study was to identify and characterize HIV clusters in Mississippi through analysis of state-level HIV surveillance data.

Methods: We used a combination of spatial epidemiology and statistical modeling to identify and characterize HIV hotspots in Mississippi census tracts (n=658) from 2008 to 2014. We conducted spatial analyses of all …

Rural And Urban Injection Drug Use In Puerto Rico: Network Implications For Human Immunodeficiency Virus And Hepatitis C Virus Infection, Courtney Thrash, Melissa L. Welch-Lazoritz, G. Robin Gauthier, Bilal Khan, Roberto Abadie, Kirk Dombrowski, Sandra Miranda De Leon, Yadira Rolon Colon

Department of Sociology: Faculty Publications

Understanding the short- and long-term transmission dynamics of blood-borne illnesses in network contexts represents an important public health priority for people who inject drugs and the general population that surrounds them. The purpose of this article is to compare the risk networks of urban and rural people who inject drugs in Puerto Rico. In the current study, network characteristics are drawn from the sampling “trees” used to recruit participants to the study. We found that injection frequency is the only factor significantly related to clustering behavior among both urban and rural people who inject drugs.

Hiv In The United States: A Spatial Examination Of Testing And Outcomes, Sazid Shameem Khan

Theses and Dissertations

The main objectives of this dissertation were to provide a complete depiction of the prevalence of HIV across the United States and to assess HIV testing trends among various subpopulations. Additionally, we focused on measuring spatial access to HIV testing resources across the U.S. South, where HIV is rapidly becoming more burdensome and resources have historically been allocated disproportionately. We sought to identify disparate populations and locations that require further focus moving forward to stem the HIV epidemic. We utilized a variety of data sources such as the Behavioral Risk Factor Surveillance System (BRFSS) which was used to assess national …

Adherence To Antiretroviral Medicines Among Adolescents And Young Adults In Benue State, Nigeria, Amom Tor-Anyiin

Walden Dissertations and Doctoral Studies

Adherence to ARV medicines is essential to halt HIV progression, increase CD4 counts, decrease virologic impact, and improve quality of life for the infected people. However, sustaining good adherence among adolescents and young adults (AYA) has been a challenge caused by various problems such as distance to clinic, improved CD4 count which lead to complacency in adherence, and the nature of the environment. This was a quantitative, retrospective, correlational, cross-sectional study anchored by the transtheoretical model, which was used to understand how adherence rate among the study population was impacted by the predictive factors. Secondary data was collected from patient's …

Challenges Of Aging With The Hiv Virus And Comorbidities, Rommie Navylia Abele

Walden Dissertations and Doctoral Studies

Since the introduction of antiretroviral therapy, the survival rate of infected HIV patients has been on the rise with a predicted increase by 2030. The longer a person lives with the virus, the more prone to HIV-associated chronic diseases he or she becomes, but it is not clear whether these diseases are solely from aging with the virus or from long-term use of antiretroviral therapy. Scientists demonstrated that the introduction of antiretroviral therapy led to an increased life expectancy yet early onset of comorbidities; however, they failed to address the challenges that people 50 years old or older face, as …

Gender Differences In Virologic Response After Antiretroviral Therapy In Treatment-Naïve Hiv-Infected Individuals: Results From The 550 Clinic Hiv Cohort Study., Andrea Reyes-Vega, Alejandra Loban, Kavitha Srinivasan, Stephen P. Furmanek, Conner English, Mary Bishop, Cathy Spencer, Daniel Truelove, Julio A. Ramirez, Anupama Raghuram, Paula Peyrani

Faculty and Staff Scholarship

Background

Controversy still exists regarding gender differences in virologic response between treatment-na•ve HIV-infected individuals. The objective of this study was to evaluate gender difference in virologic and immunologic response to antiretroviral therapy in treatment-na•ve HIV-infected individuals. Methods

This was a retrospective, observational study of treatment-na•ve HIV-infected individuals managed at the 550 clinic who started antiretroviral therapy (ART) between January 1st, 2010 and December 31, 2015. Patients with available viral load and CD4 counts before and one year after initiating ART were included in this study. Virologic suppression was defined as < 48 HIV-1 RNA copies/mL, and mmunologic recovery was defined as a CD4 count increase of at least 150 cells/mm3. Dichotomous variables were reported in number and percentages and analyzed using Chi-squared tests and Fisher’s exact (whichever was appropriate). Continuous variables were reported as median and interquartile range (IQR) and analyzed using Wilcox rank-sum tests. Multivariate analyses performed were logistic regressions with adjustment for other covariates. P value <0.05 was considered statistically significant. R version 3.3.2 was used for the statistical analysis. Results

A total of 70 women and 90 men were included …

The Impact Of African American Male Incarceration Rates On The Racial Disparities In Hiv/Aids Rates, Michelle S. Aelion

DePaul Discoveries

In the United States, HIV/AIDS disproportionately impacts African Americans and African American communities. The nature of this national health disparity is complex and cannot be explained simply by one factor or an individual’s behavior within a given community. This paper suggests that the disparity in African American male incarceration rates is among the most important factors to consider in the racial disparities of HIV/AIDS rates. Existing studies on relevant subjects were examined and used to create a conceptual model of factors. This model presents an outline of factors during pre-incarceration, incarceration, and post-incarceration that contribute to the racial disparities in …

Predicting Death Over 8 Years In A Prospective Cohort Of Hiv-Infected Women: The Women's Interagency Hiv Study, Deborah Gustafson, Qiuhu Shi, Susan Holman, Howard Minkoff, Mardge Cohen, Michael Plankey, Donald Hoover

NYMC Faculty Publications

OBJECTIVES: Predicting mortality in middle-aged HIV-infected (HIV+) women on antiretroviral therapies (ART) is important for understanding the impact of HIV infection. Several health indices have been used to predict mortality in women with HIV infection. We evaluated: (1) an HIV biological index, Veterans Aging Cohort Study (VACS); (2) a physical index, Fried Frailty Index (FFI); and (3) a mental health index, Center for Epidemiologic Studies-Depression (CES-D). Proportional hazards regression analyses were used to predict death and included relevant covariates.

DESIGN: Prospective, observational cohort.

SETTING: Multicentre, across six sites in the USA.

PARTICIPANTS: 1385 multirace/ethnic ART-experienced HIV+ women in 2005.

PRIMARY …

Conventional Early Infant Diagnosis In Lesotho From Specimen Collection To Results Usage To Manage Patients: Where Are The Bottlenecks?, Appolinaire Tiam, Michelle M Gill, Heather J Hoffman, Anthony Isavwa, Mafusi Mokone, Matokelo Foso, Jeffrey T Safrit, Lynne M Mofenson, Thorkild Tylleskär, Laura Guay

Epidemiology Faculty Publications

INTRODUCTION: Early infant diagnosis is an important step in identifying children infected with HIV during the perinatal period or in utero. Multiple factors contribute to delayed antiretroviral treatment initiation for HIV-infected children, including delays in the early infant HIV diagnosis cascade.

METHODS: We conducted a retrospective study to evaluate early infant diagnosis turnaround times in Lesotho. Trained staff reviewed records of HIV-exposed infants (aged-6-8 weeks) who received an HIV test during 2011. Study sites were drawn from Highlands, Foothills and Lowlands regions of Lesotho. Central laboratory database data were linked to facility and laboratory register information. Turnaround time geometric means …

Association Between Hiv And Violence Among Female Commercial Sex Workers In Ukraine : Analysis Of Bio-Behavioral Surveillance Conducted In 2015-2016, Ganna Momotyuk

Legacy Theses & Dissertations (2009 - 2024)

A cross-sectional analysis investigated the association between HIV and violence in female commercial sex workers (FCSW) in Ukraine between 10/2015 and 01/2016. Methods: 3,885 FCSW from a total of 4,300 were questioned about behavioral and social demographics and tested for HIV in mobile testing van. Results: of the 3,885 respondents, 5.89% were HIV positive, and 47.00% had experienced violence. We tested for and found that drug use was an effect modifier for the association between HIV and violence. Analyses were stratified by injecting drug use and no injecting drug use. High risk for HIV was found in the non-IDU stratum …

Factors Influencing Quality Of Life Of Persons Living With Human Immunodeficiency Virus Infection In Almaty, Kazakhstan, Bakhytkul Zhakipbayeva Zhakipbayeva

Legacy Theses & Dissertations (2009 - 2024)

Introduction: Health-related Quality of life (HRQoL) is recognized as a significant medical outcome measure for persons living with HIV (PLWH). Identification of potentially modifiable determinants of HRQoL could help target people in need of additional health care and social services in order to improve their HRQoL. The main objective of this study was to determine the factors with the strongest impact on HRQoL in PLWH.

The Association Between Sexual Risk Behaviors Of Latinos And Hiv Knowledge In South Carolina, Danielle Nicole Sill

Theses and Dissertations

HIV/AIDS inordinately impacts Hispanics/Latinos, which are the fastest growing minority group in the United States. 16,222 South Carolinians are infected with HIV, with 70 new cases being diagnosed each month. Few studies have been conducted to determine if HIV knowledge is associated with sexual risk behaviors in South Carolina. Bilingual/bicultural interviewers conducted a survey of Latinos living in the Pee Dee and Midlands regions of South Carolina. The survey consisted of questions regarding demographic characteristics, HIV knowledge, and sexual risk behaviors. We enrolled 203 participants in which 193 were eligible for our study (97 females and 96 males). We hypothesized …

Impact Of The Affordable Care Act On The Hiv Care Continuum, Ebere Erugo

Walden Dissertations and Doctoral Studies

People living with human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS; PLWHA) are at increased risk of insufficient medical care due to lack of insurance. Inadequate medical care for PLWHA contributes to increases in HIV transmission rates. The U.S. Surveillance Report noted that in 2015, over 1.2 million people were living with HIV infection, and there were approximately 50,000 new infections every year. The report further stated that about 675,000 people have died from HIV-related illnesses since its discovery in 1981. The implementation of the Affordable Care Act (ACA) in 2014 was intended to provide Americans, including people at …

Hiv/Stis And Intimate Partner Violence: Results From The Togo 2013-2014 Demographic And Health Surveys, Anthony H. Nguyen

USF Tampa Graduate Theses and Dissertations

Background: Among clinic based studies, intimate partner violence (IPV) has been shown to contribute to HIV/AIDS among young girls and women. Results from studies among the general population have been less consistent. This study evaluated the associations between HIV infection, any sexually transmitted infections, and IPV in a population based sample of Togolese women.

Methods: Data from the Togo 2013-2014 Demographic and Health Surveys were utilized for these analyses. Women aged 15-49 who were currently married, had HIV test results and answered the Domestic Violence Module were analyzed (n = 2386). Generalized linear mixed-models adjusting for sociodemographic variables, risk behaviors, …

Accuracy Of Name And Age Data Provided About Network Members In A Social Network Study Of People Who Use Drugs: Implications For Constructing Sociometric Networks, April M. Young, Abby E. Rudolph, Amanda E. Su, Lee King, Susan Jent, Jennifer R. Havens

Epidemiology and Environmental Health Faculty Publications

Purpose—Network analysis has become increasingly popular in epidemiologic research, but the accuracy of data key to constructing risk networks is largely unknown. Using network data from people who use drugs (PWUD), the study examined how accurately PWUD reported their network members’ (i.e., alters’) names and ages.

Methods—Data were collected from 2008 to 2010 from 503 PWUD residing in rural Appalachia. Network ties (n=897) involved recent (past 6 months) sex, drug co-usage, and/or social support. Participants provided alters’ names, ages, and relationship-level characteristics; these data were cross-referenced to that of other participants to identify participant-participant relationships and to determine …

Epidemiology Of Hpv Genotypes Among Hiv Positive Women In Kenya: A Systematic Review And Meta-Analysis, Sonia Menon, Aibibula Wusiman, Marie Claude Boily, Mbabazi Kariisa, Hillary Mabeya, Stanley Luchters, Frode Forland, Rodolfo Rossi, Steven Callens, Davy Vanden Broeck

Population Health, East Africa

Background: There is a scarcity of data on the distribution of human papillomavirus (HPV) genotypes in the HIV positive population and in invasive cervical cancer (ICC) in Kenya. This may be different from genotypes found in abnormal cytology. Yet, with the advent of preventive HPV vaccines that target HPV 16 and 18, and the nonavalent vaccine targeting 90% of all ICC cases, such HPV genotype distribution data are indispensable for predicting the impact of vaccination and HPV screening on prevention. Even with a successful vaccination program, vaccinated women will still require screening to detect those who will develop ICC from …

Husband’S Support Towards Unmet Need Of Hiv Positive-Infected Women Of Childbearing Age, Sophia Sophia, Anita Deborah Anwar, Bony Wiem Lestari

Kesmas

Jutaan wanita usia subur (WUS) dengan HIV positif di negara berkembang saat ini tidak menggunakan kontrasepsi untuk menunda atau mengakhiri kehamilan. Pencegahan kehamilan yang tidak diinginkan pada WUS dengan HIV positif sangat penting untuk meningkatkan kualitas hidup ibu dan anak. Tujuan penelitian ini untuk menganalisis faktor-faktor yang berpengaruh terhadap unmet need pada WUS dengan HIV positif. Metode penelitian adalah cross sectional dengan sampel berjumlah 130 WUS dengan HIV positif yang diambil secara consecutive sampling. Penelitian dilakukan pada 24 Maret - 30 Juni 2015 di Klinik Mawar Kota Bandung. Pengumpulan data dilakukan melalui wawancara dengan menggunakan kuesioner, kemudian data dianalisis dengan …

Multilevel Analysis Of Individual, Neighborhood, And Health Care Facility Characteristics Associated With Achievement And Maintenance Of Hiv Viral Suppression Among Persons Newly Diagnosed With Hiv In New York City, Ellen W. Wiewel

Dissertations, Theses, and Capstone Projects

Objective

To investigate the effect of individual, health care facility, and neighborhood characteristics on achievement and maintenance of HIV viral suppression, among New York City residents aged 13 years and older diagnosed with HIV between 2006 and 2012.

Methods

I used individual-level data from the New York City HIV surveillance registry and Case Surveillance-Based Sampling, facility-level data from the surveillance registry, and neighborhood-level data from the U.S. Census and American Community Survey. The outcomes of interest were first viral suppression after diagnosis (Aims 1 and 3; ≤400 copies/mL) and virologic failure after first suppression among persons who achieved suppression (Aim …

Interrelationships Of Colorism, Violence, And Sexual Behaviors Among Southern African American Women., Phaedra Christensen

Walden Dissertations and Doctoral Studies

Two significant public health concerns that threaten both the physical and mental health of African-American women are Intimate Partner Violence (IPV) and Human Immunodeficiency Virus (HIV). African-American women (AAW) in the south carry the greatest burden of HIV and disproportionately represent the region with an incidence of 71% for new HIV infections, and elevated rates of morbidity and mortality. In 2013, the murder rate among AAW was 2.5 times higher than it was among Caucasian women. Most of the published studies that explored the association between IPV and HIV had mixed populations, did not explore topics unique to AAs, or …