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Full-Text Articles in Health Psychology

The Centrality Of Disclosure Decisions To The Illness Experience For Youth With Chronic Conditions: A Qualitative Study, Roberta Lynn Woodgate, Pauline Tennent, Sarah C. Barriage, Nicole Legras Sep 2020

The Centrality Of Disclosure Decisions To The Illness Experience For Youth With Chronic Conditions: A Qualitative Study, Roberta Lynn Woodgate, Pauline Tennent, Sarah C. Barriage, Nicole Legras

Information Science Faculty Publications

The aim of this paper is to illuminate findings of disclosure experiences for youth living with chronic illness using a non-categorical approach. The findings were derived from a larger qualitative study framed by social constructivist grounded theory that sought to understand youth's involvement in healthcare decision-making in the context of chronic illness. Fifty-four youth participated in the study, ranging from 9 to 24 years. Three main themes representing the youth's perspectives and experiences of disclosing chronic illness were identified: (1) disclosure is central to the illness experience; (2) spectrum of disclosure; and (3) navigating others' reactions to disclosure. The findings …


Perceptions Of Recovery While Delivering Medicaid Covered Rehabilitation Services, Zakia Clay, Anthony Zazzarino, Emilie Banz, Ann Reilly Sep 2020

Perceptions Of Recovery While Delivering Medicaid Covered Rehabilitation Services, Zakia Clay, Anthony Zazzarino, Emilie Banz, Ann Reilly

Journal of Human Services: Training, Research, and Practice

Many states have shifted to Medicaid reimbursement methods to cover behavioral health services. In doing so, state mental health authorities have incorporated the concept of recovery into mental health policy. Thus, gaining a better understanding of practitioners’ perceptions of recovery in a new fiscal environment is warranted. This qualitative study explores how New Jersey practitioners transitioning to a new state-wide Medicaid payment structure perceive recovery from mental illness. Four themes emerged following a thematic analysis. Future studies that explore perspectives of individuals receiving services could provide useful information for policy makers, agencies, and community stakeholders.


When Pandemic Hits: Exercise Frequency And Subjective Well-Being During Covid-19 Pandemic, Ralf Brand, Sinika Timme, Sanaz Nosrat Sep 2020

When Pandemic Hits: Exercise Frequency And Subjective Well-Being During Covid-19 Pandemic, Ralf Brand, Sinika Timme, Sanaz Nosrat

Publications and Research

The governmental lockdowns related to the COVID-19 pandemic have forced people to change their behavior in many ways including changes in exercise. We used the brief window of global lockdown in the months of March/April/May 2020 as an opportunity to investigate the effects of externally imposed restrictions on exercise-related routines and related changes in subjective well-being. Statistical analyses are based on data from 13,696 respondents in 18 countries using a cross-sectional online survey. A mixed effects modeling approach was used to analyze data. We tested whether exercise frequency before and during the pandemic would influence mood during the pandemic. Additionally, …


Winning In Weight-Loss: The Interaction Of Conscientiousness And Perceived Autonomy, Jason M. Curtis, Marc Lochbaum Sep 2020

Winning In Weight-Loss: The Interaction Of Conscientiousness And Perceived Autonomy, Jason M. Curtis, Marc Lochbaum

Journal for Sports Neuroscience

ABSTRACT

Background

Understanding determinants for weight-loss is a national priority. Obesity is an epidemic with serious health consequences. Most of today’s obesity and overweight problems are being attributed to poor diets and not enough physical activity. These problems show no signs of slowing down with the behaviors of most Americans. The phenomenon of “The Biggest Loser” (different variants of weight-loss programs that consist of group exercise participation and nutrition therapy to elicit weight-loss, and hopefully behavior change) has spawned many variants in commercial health clubs. This prospectus study examined the direct and interactive or moderated effects of known determinants of …


Taking It To Heart: Trauma And Cardiovascular Risk In Court-Involved People Of Color, Tanya Erazo Sep 2020

Taking It To Heart: Trauma And Cardiovascular Risk In Court-Involved People Of Color, Tanya Erazo

Dissertations, Theses, and Capstone Projects

Research supports that racial disparities in health persist in the United States, with cardiovascular risk and cardiovascular disease remaining particularly high in low-income, communities of color (U.S. Department of Health and Human Services: Centers for Disease Control and Prevention, 2013; Winkleby, Jatulis, Frank, & Fortmann, 1992). Public health literature often focuses on sociodemographic variables when assessing for health disparities without considering trauma or forensic populations. This dissertation provides an overview of literature that examines cardiovascular disease and its relationship to trauma, particularly in low-income, communities of color, and forensic populations. Although the dissertation culminates in providing results for an investigation …


Development Of A Minority Stress Preventive Intervention For Sexual And Gender Minority Youth And Young Adults, Natalie Holt Sep 2020

Development Of A Minority Stress Preventive Intervention For Sexual And Gender Minority Youth And Young Adults, Natalie Holt

Department of Psychology: Dissertations, Theses, and Student Research

Mental health disparities amongst sexual and gender minority (SGM) individuals are spurred by exposure to minority stressors and sustained by mediators of problems with emotion regulation, social support, and cognitive processes. Emerging clinical research suggests empirically supported behavioral health treatments can be culturally adapted to address these mental health disparities, however less work has focused on the prevention of symptoms. The present study developed a brief preventive intervention targeting mediators of the minority stress model for SGM youth and young adults aged 17 to 26. Focus groups with 8 SGM participants informed development to ensure the content and delivery of …


Adverse Childhood Experiences And Cigarette Smoking: Demographic Moderators, Taylor Cosanella Sep 2020

Adverse Childhood Experiences And Cigarette Smoking: Demographic Moderators, Taylor Cosanella

Loma Linda University Electronic Theses, Dissertations & Projects

Research suggests that there is a dose-response relationship between ACE score and cigarette smoking, such that as ACE score increases, so does smoking behavior, but little is known about what factors moderate this relationship. Therefore, the goal of this study was to examine demographic characteristics as potential moderators of relationship between Adverse Childhood Experiences (ACEs) and cigarette smoking. A secondary data analysis was conducted using the 2013 California Behavioral Risk Factor Surveillance System data. The sample included 2,604 U.S. adults (54.8% female; Age: M = 53.3, SD = 8.10; 83.6%; Caucasian, 6.4% Asian, 5.9% Black or African American, 3.1% American …


Medical And Parental Predictors Of Self-Efficacy In Pediatric Chronic Illness, Naina Mahtani Sep 2020

Medical And Parental Predictors Of Self-Efficacy In Pediatric Chronic Illness, Naina Mahtani

Loma Linda University Electronic Theses, Dissertations & Projects

Self-efficacy, defined as the belief in one’s ability to succeed, is particularly important in youth struggling with chronic illness (CI) given its association with poorer adherence and worse prognosis. Parental factors such as income and marital status, and youth factors such as number of hospitalizations have been examined as contributing to self-efficacy in children. The aim of the current study was to assess the extent to which these variables predict self-efficacy in a sample of youth 8-17 suffering from CI. Data were collected from 217 families with a child with a CI aged 8-17, being seen by a medical provider …


Meal And Food Selection Patterns Of Binge Episodes In Ethnically Diverse Adults, Abigail Grace Alido Sep 2020

Meal And Food Selection Patterns Of Binge Episodes In Ethnically Diverse Adults, Abigail Grace Alido

Loma Linda University Electronic Theses, Dissertations & Projects

Food selection and associated patterns among ethnically diverse adults with binge eating deserves greater attention given binge eating prevalence among ethnic minorities. The aims of this study were to examine meal patterns, location, and food selection during binge episodes in an ethnically diverse sample of adults seeking binge eating treatment. Participants were 29 adults (86% female) with a mean age of 36.5 (SD = 11.2). Participants had an average body mass index of 32.4 (SD = 8.74). Approximately 41% of participants self-identified as Hispanic/Latino. The Eating Disorder Diagnostic Interview (EDDI) was administered to determine binge eating behavior and to obtain …


Non-Accidental Trauma: Nature Of Subsequent Encounters And Related Outcomes, Marina Bassili Sep 2020

Non-Accidental Trauma: Nature Of Subsequent Encounters And Related Outcomes, Marina Bassili

Loma Linda University Electronic Theses, Dissertations & Projects

Physical abuse results in a wide array of adverse outcomes, and victims of child abuse often require long-term, intensive care depending on the scope and severity of their trauma. The present study is an extension of a study which examined the services provided in the hospital to children with physical abuse that resulted in hospitalization (Kazandjian, et. al., 2016). It will examine the nature of subsequent hospital encounters in pediatric victims of Non-Accidental Trauma (NAT) at the Loma Linda University Children’s Hospital (LLUCH). Researchers will investigate the short-term and long-term physical, neurological, cognitive/developmental, behavioral, and social emotional effects experienced by …


Distress Among Parents Of Overweight Children With Developmental Disabilities, Lilit Hovsepyan Sep 2020

Distress Among Parents Of Overweight Children With Developmental Disabilities, Lilit Hovsepyan

Loma Linda University Electronic Theses, Dissertations & Projects

The epidemic of childhood obesity, which occurs at higher rates for children with intellectual and developmental disabilities (IDD), has been shown to have many deleterious health effects for both children and their parents. Previous research has consistently shown that child externalizing and internalizing behaviors are predictive of parenting stress in parents of children with IDD. Less is known about the nature of this relationship when an additional barrier, child weight status, is examined in the context of this relationship. The current study investigated child and parent factors related to parental distress in a sample of children with IDD who present …


Relationship Between Humidity And Physiology In Warm And Humid Conditions – A Literature Review, Yuliya Dzyuban Sep 2020

Relationship Between Humidity And Physiology In Warm And Humid Conditions – A Literature Review, Yuliya Dzyuban

Research Collection School of Social Sciences

Change in precipitation patterns caused by global warming will likely increase humidity in some areas of the world. Moreover, populations in tropical climates with already high humidity levels can experience an added stress on their health and thermal comfort due to an amplifying effect of heat and moisture. Humidity is a generic term commonly used to describe moisture in the air. However, there are numerous variables that describe different properties of humid air that can be used in scientific studies. While relative humidity remains the most used, it has several shortcomings associated with its high correlation with air temperature. Thus, …


Prep Use And Barriers To Use Among Adult And Young Sexual Minority Men In The United States, Thomas Whitfield Sep 2020

Prep Use And Barriers To Use Among Adult And Young Sexual Minority Men In The United States, Thomas Whitfield

Dissertations, Theses, and Capstone Projects

Pre-exposure prophylaxis (PrEP) was approved for all individuals 13 years of age and older in May 2018. However, research pertaining to uptake has mostly focused on adult sexual minority men (SMM), leaving out many barriers and facilitators that may exist for those under 18 years of age. Two of the most important precursors leading to PrEP uptake identified in prior research are the perception of self as a PrEP candidate and having intentions to begin PrEP. Developmental and dual processing theories suggest that individuals who are younger make behavioral decisions differently from those who are older. Developmental theories suggest that, …


Intrapersonal And Interpersonal Factors Predicting Distress And End-Of-Life Planning Among Individuals With Advanced Cancers, Aliza A. Panjwani Sep 2020

Intrapersonal And Interpersonal Factors Predicting Distress And End-Of-Life Planning Among Individuals With Advanced Cancers, Aliza A. Panjwani

Dissertations, Theses, and Capstone Projects

The social-cognitive processing model of adaption to cancer posits that both intrapersonal and interpersonal factors influence psychological adjustment (Lepore, 2001). In this dissertation, two intrapersonal factors, intolerance of uncertainty (IU) and experiential avoidance (EA), were examined in relation to emotional distress (psychological outcome) and advanced care planning (behavioral outcome) among patients living with advanced cancer. EA (efforts intended to avoid negative emotions, thoughts, images or memories) was hypothesized to mediate the relationship between IU (the ability to tolerate uncertainty or the unknown) and emotional distress. In line with the social-cognitive model, two interpersonal factors, social support from family and friends …


The Role Of Attentional Processes In The Associations Between Syndemics And Hiv Risk, Raymond L. Moody Sep 2020

The Role Of Attentional Processes In The Associations Between Syndemics And Hiv Risk, Raymond L. Moody

Dissertations, Theses, and Capstone Projects

Sexual minority men (SMM) remain the group most affected by HIV in the United States. The term “syndemic” has been used to describe high levels of comorbidity and additive effects that some factors—childhood sexual abuse, intimate partner violence, sexual compulsivity, substance use, and depression—have on HIV transmission risk behavior (TRB). Previous research provides support for an HIV syndemic among SMM, but mechanisms linking syndemic factors and driving the association between the factors and TRB are less understood. Some research suggests that executive attention and emotion dysregulation are linked with several syndemic factors. As such, the aims of this dissertation were …


Memory Bias Toward Emotional Information In Burnout And Depression, Renzo Bianchi, Eric Laurent, Irvin Sam Schonfeld, Lucas M. Bietti, Eric Mayor Sep 2020

Memory Bias Toward Emotional Information In Burnout And Depression, Renzo Bianchi, Eric Laurent, Irvin Sam Schonfeld, Lucas M. Bietti, Eric Mayor

Publications and Research

A sample of 1015 educational staff members, exhibiting various levels of burnout and depressive symptoms, underwent a memory test involving incident encoding of positive and negative words and a free recall task. Burnout and depression were each found to be associated with increased recall of negative items and decreased recall of positive items. Results remained statistically significant when controlling for history of depressive disorders. Burnout and depression were not related to mistakes in the reported words, or to the overall number of recalled words. This study suggests that burnout and depression overlap in terms of memory biases toward emotional information.


Living With Multiple Sclerosis: A Phenomenological Study Of Worries, Concern And Psychological Problems In Iranian Patients With Ms, Zahra Abdekhodaie, Shahriar Shahidi, Mohammad Ali Mazaheri, Laily Panaghi, Vahid Nejati Aug 2020

Living With Multiple Sclerosis: A Phenomenological Study Of Worries, Concern And Psychological Problems In Iranian Patients With Ms, Zahra Abdekhodaie, Shahriar Shahidi, Mohammad Ali Mazaheri, Laily Panaghi, Vahid Nejati

The Qualitative Report

Multiple sclerosis (MS), as a progressive and degenerative illness, has an impact on different aspects of individual lives and may lead to difficulties, concerns, and worries in patients. The aim of the present study was to investigate concerns, worries and problems in patients with MS. We used a descriptive phenomenological qualitative approach. Participants were volunteers purposively selected based on their availability. We carried out deep interviews with 15 MS patients and analyzed the detailed information obtained from these interviews by using Colaizzi’s method. We extracted six essential themes and thirty-four sub-themes associated with MS from the content of the interviews. …


Optimism And Risk Of Incident Hypertension: A Target For Primordial Prevention, Laura D. Kubzansky, Julia K. Boehm, Andrew R. Allen, Loryana L. Vie, Tiffany E. Ho, Claudia Trudel-Fitzgerald, Hayami K. Koga, Lawrence M. Scheier, Martin E. P. Seligman Aug 2020

Optimism And Risk Of Incident Hypertension: A Target For Primordial Prevention, Laura D. Kubzansky, Julia K. Boehm, Andrew R. Allen, Loryana L. Vie, Tiffany E. Ho, Claudia Trudel-Fitzgerald, Hayami K. Koga, Lawrence M. Scheier, Martin E. P. Seligman

Psychology Faculty Articles and Research

Aims

Optimism is associated with reduced cardiovascular disease risk; however, few prospective studies have considered optimism in relation to hypertension risk specifically. We investigated whether optimism was associated with a lower risk of developing hypertension in U.S. service members, who are more likely to develop high blood pressure early in life. We also evaluated race/ethnicity, sex and age as potential effect modifiers of these associations.

Methods

Participants were 103 486 hypertension-free U.S. Army active-duty soldiers (mean age 28.96 years, 61.76% White, 20.04% Black, 11.01% Hispanic, 4.09% Asian, and 3.10% others). We assessed optimism, sociodemographic characteristics, health conditions, health behaviours and …


Preliminary Evidence Of The Role Of Medial Prefrontal Cortex In Self-Enhancement: A Transcranial Magnetic Stimulation Study, Birgitta Taylor-Lillquist, Vivek Kanpa, Maya Crawford, Mehdi El Filali, Julia Oakes, Alex Jonasz, Amanda Disney, Julian Keenan Aug 2020

Preliminary Evidence Of The Role Of Medial Prefrontal Cortex In Self-Enhancement: A Transcranial Magnetic Stimulation Study, Birgitta Taylor-Lillquist, Vivek Kanpa, Maya Crawford, Mehdi El Filali, Julia Oakes, Alex Jonasz, Amanda Disney, Julian Keenan

Department of Biology Faculty Scholarship and Creative Works

Humans employ a number of strategies to improve their position in their given social hierarchy. Overclaiming involves presenting oneself as having more knowledge than one actually possesses, and it is typically invoked to increase one’s social standing. If increased expectations to possess knowledge is a perceived social pressure, such expectations should increase bouts of overclaiming. As the medial prefrontal cortex (MPFC) is sensitive to social pressure and disruption of the MPFC leads to decreases in overclaiming, we predicted that transcranial magnetic stimulation (TMS) applied to the MPFC would reduce overclaiming and the effects would be enhanced in the presence of …


Therapeutic Potential Of A Ketogenic Diet In The Treatment Of Major Depressive Disorder, Jordan A. Murrin Aug 2020

Therapeutic Potential Of A Ketogenic Diet In The Treatment Of Major Depressive Disorder, Jordan A. Murrin

Masters Theses, 2020-current

Major depressive disorder (MDD) is the second most common mental health condition and a leading cause of disability in the world. It is theorized that MDD develops from a combination of biological, psychological, and social stressors. The condition is typically treated using pharmaceuticals and psychotherapy. However, not all individuals with MDD have access to or choose to use these treatments, or may prefer to incorporate therapeutic lifestyle changes such as exercise, sleep, and healthy eating. Even with treatment, MDD can alter brain structure and function, leading to the development of comorbid mental health and chronic metabolic conditions like obesity, cardiovascular …


Return To School 1 Year After Traumatic Brain Injury: A Study Using The Traumatic Brain Injury Model Systems National Database, Kathryn Tarnai Aug 2020

Return To School 1 Year After Traumatic Brain Injury: A Study Using The Traumatic Brain Injury Model Systems National Database, Kathryn Tarnai

Masters Theses, 2020-current

For many individuals, recovery from moderate to severe brain injuries involves returning to a level of pre-injury productivity. Specifically, previous research has focused extensively on factors predicting return to employment, where students are inconsistently categorized with those in competitive employment. Moreover, research dedicated to return to school for students in secondary and tertiary education is largely qualitative; very few studies have utilized predictive modeling on a sample composed solely of students. For this study, a model including days of post-traumatic amnesia (PTA), length of stay (LOS), rehabilitation discharge Disability Rating Scale (DRS) scores, and educational level was used to predict …


Stress And Negative Affect As Mediators In The Association Between Parental Social Support And Lung Function In Adolescents With Asthma, Amber Osorno, Eric Sternlicht, Pornchai Tirakitsoontorn, Azucena Talamantes, Anchalee Yuengsrigul, Zeev N. Kain, Brooke Jenkins Aug 2020

Stress And Negative Affect As Mediators In The Association Between Parental Social Support And Lung Function In Adolescents With Asthma, Amber Osorno, Eric Sternlicht, Pornchai Tirakitsoontorn, Azucena Talamantes, Anchalee Yuengsrigul, Zeev N. Kain, Brooke Jenkins

SURF Posters and Papers

Asthma is the leading chronic condition amongst children in the United States as 7.5% of children are diagnosed with asthma. Studies have shown that positive social support is associated with positive asthma management. A strong social support system predicts good management of asthma symptoms; however, current literature has not yet examined how social support impacts lung function as opposed to merely symptom management. Stress and negative affect have been revealed to be associated with worse asthma control, as well as exacerbation of symptoms. Stressful situations, such as the death of a family member, unemployment, and familial tensions lead to worsening …


Treading Water: Coping With Uncertainty During A Novel Pandemic, Sachin Patel Aug 2020

Treading Water: Coping With Uncertainty During A Novel Pandemic, Sachin Patel

Patient Experience Journal

The abruptness with which the COVID-19 pandemic has changed the delivery of healthcare will have a lasting effect on patients and families of intensive care unit survivors. Using the best science and epidemiology healthcare systems developed protocols and policies to implement the highest level of care but mitigate disease spread. Out of these initiatives the “no visitor” policy was born. The impact of COVID-19 causing florid respiratory failure immediately derailed the lives of a happily retired couple. While on mechanical ventilation for sixteen days, Betty was unable to connect with her husband of over 40 years. In that time, the …


The Direct Primary Care Model: Practice Characteristics And Patient Experience, James David Miller Aug 2020

The Direct Primary Care Model: Practice Characteristics And Patient Experience, James David Miller

Dissertations and Theses (Open Access)

The Direct Primary Care practice model has been growing in both number of practices and public awareness. However, there has been little academic research about this emerging practice model. This research is aimed to describe the current state of the DPC practice model by examining the services provided, geographic distribution of practices, statistical distribution of membership fees, demographic characteristics of physicians using the model and to determine whether regional pricing variation existed. In addition, differences were analyzed between the patient satisfaction levels in DPC and fee-for-service practices. A dataset was created by visiting the website of all known, non-corporate, DPC …


The Use Of Animal-Assisted Therapeutic Interventions In The Hospital Setting During The Covid-19 Pandemic, Alicia Cesare Aug 2020

The Use Of Animal-Assisted Therapeutic Interventions In The Hospital Setting During The Covid-19 Pandemic, Alicia Cesare

Graduate Theses/Dissertations

Handlers of therapy and/or facility dogs working within hospital settings have experienced various barriers and challenges within their practice during the COVID-19 pandemic. Animal-assisted interventions, specifically therapeutic working dogs, are a valued source of support to individuals, communities, hospital settings, and disaster sites during times of community distress. The purpose of this study was to identify barriers and solutions to the continued use of animal-assisted therapeutic interventions in support of patients and families within the hospital setting during the COVID-19 pandemic. This researcher’s position within the research is the knowledge and experience of being a facility dog handler within the …


Cross-Sectional Analysis Of The Relationship Between Violent Crime And Mental Health Disorders In A Sample Of Homeless Adults Recently Released From Jail, Addison Ransom Aug 2020

Cross-Sectional Analysis Of The Relationship Between Violent Crime And Mental Health Disorders In A Sample Of Homeless Adults Recently Released From Jail, Addison Ransom

Dissertations and Theses (Open Access)

Adverse mental health conditions among incarcerated populations are high, and treatment for these conditions is particularly low. Additionally, there is a culture of stigma in the United States towards those with mental health conditions and violent criminal history, contributing to mass incarceration. The present cross-sectional study sought to assess the association between violent criminal history and mental health symptoms among recently incarcerated homeless adults in Dallas, Texas. This study included 230 participants, taking place at The Bridge Homeless Recovery Center, evaluating non-violent versus violent criminal history. Outcome measures of positive screens for post-traumatic stress disorder, generalized anxiety disorder, and depression …


Risk Factors Associated With Somatic Symptoms Following Military Sexual Trauma In Members Of The National Guard And Reserves, Chelsea J. Mcmahon Aug 2020

Risk Factors Associated With Somatic Symptoms Following Military Sexual Trauma In Members Of The National Guard And Reserves, Chelsea J. Mcmahon

USC Aiken Psychology Theses

Objective: The purpose of the present study is to expand existing literature on risk factors that are associated with poorer physical health outcomes following incidents of Military Sexual Trauma (MST) to include both Military Sexual Harassment and Military Sexual Assault in members of the United States National Guard and Reserve.

Method: The current study used archival data collected by a research team at the Veteran Affairs Boston Healthcare System in order to identify potential factors such as gender, social support, immediate medical treatment, Posttraumatic Stress Disorder, and Depression. Moderation and mediation analyses were performed to examine the association between experiences …


Atitiudes Tow Ards Computer Games For Learning And Pl.A Yer Archetypes: An Exploration Of Measures On Preintervention Player Characteristics For Serious Game-Based Interventions, Benjamin Lee Aug 2020

Atitiudes Tow Ards Computer Games For Learning And Pl.A Yer Archetypes: An Exploration Of Measures On Preintervention Player Characteristics For Serious Game-Based Interventions, Benjamin Lee

Dissertations and Theses (Open Access)

Serious game-based interventions offer promising health outcome results with the aid of pre-intervention player tailoring and the development of measurements that evaluate pre-intervention player characteristics and subgroups. Video gaming measures can potentially provide helpful tailoring information that discerns individual video gaming preferences which could influence their overall user experience. It is critical that measures that target adolescent video gaming be psychometrically validated. There is a gap in the literature with psychometrically validated measures evaluating adolescent attitudes towards computer games for learning and gaming archetypes. Therefore the aims of this dissertation were to 1) evaluate the psychometric properties (i.e., reliability and …


Costs Of Coronary Artery Bypass Grafting And Percutaneous Coronary Intervention In Texas, Saleh Hamed Alsarhan Aug 2020

Costs Of Coronary Artery Bypass Grafting And Percutaneous Coronary Intervention In Texas, Saleh Hamed Alsarhan

Dissertations and Theses (Open Access)

Background: Coronary artery bypass grafting (CABG) surgery and percutaneous coronary intervention (PCI) procedures have been associated with substantial financial costs in Texas. The annual hospital charges in 2016 for CABG surgeries and PCI procedures in Texas were $3.6 billion and $4.1 billion, respectively. Recently, these two procedures have become a target for bundled payment initiatives. Due to the lack of information about the demographics and variations associated with CABG and PCI episode payments for commercially insured patients, more research needs to be conducted to understand the magnitude of payments and the drivers of variation in payments in Texas. Objective: This …


Semiparametric Methods To Improve Risk Assessment And Dynamic Prediction, Wen Li Aug 2020

Semiparametric Methods To Improve Risk Assessment And Dynamic Prediction, Wen Li

Dissertations and Theses (Open Access)

Incorporating promising biomarkers to improve risk assessment and prediction is the central goal in many biomedical studies. Cost-effective designs and longitudinal designs are often utilized for measuring biomarker information, but they pose challenges to the data analyses. Statistical analyses for these kinds of data are routinely performed using parametric models. When the model assumptions are violated, parametric models may lead to substantial bias in parameter estimation, risk evaluation and prediction. In this dissertation, we will develop robust, exible statistical methods for risk assessment for matched case-control, nested case-control, and case-cohort designs, as well as a dynamic prediction tool for longitudinal …