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Articles 1 - 30 of 49
Full-Text Articles in Medicine and Health Sciences
Risk Of Kidney Stones In Living Kidney Donors: A Matched Cohort Study, Sonia Thomas
Risk Of Kidney Stones In Living Kidney Donors: A Matched Cohort Study, Sonia Thomas
Electronic Thesis and Dissertation Repository
A kidney stone in a person with one kidney requires urgent attention which may result in surgical and/or hospital attention. We conducted a matched retrospective cohort study to determine if living kidney donors compared to healthy non-donors have a higher risk of: 1) kidney stones with surgical intervention, and 2) hospital encounters for kidney stones. We reviewed and linked information from pre-donation charts to Ontario healthcare databases. We selected healthy non-donors from the general population, matching ten non-donors to every donor, to generate a cohort of 2,019 donors and 20,190 non-donors. There was no difference in the rate of 1) …
The Impact Of Intrauterine Exposure To Gestational Diabetes Mellitus On Early Childhood Body Mass Index Trajectories, Aniq Anam
Electronic Thesis and Dissertation Repository
Background: Although gestational diabetes mellitus (GDM) has been linked to pediatric obesity, there is limited research on the impact of intrauterine exposure to GDM on trajectories of childhood growth. Objective: To assess the effect of prenatal GDM exposure on childhood body mass index (BMI) trajectories. Design: Analyses were conducted using data from cycles 2 to 6 (1994-2004; N=3412 children) of the National Longitudinal Survey of Children and Youth. Latent growth curve modelling (LGCM) was used to model BMI trajectories from age 2 to 10 years with prenatal exposure to GDM as a predictor. Effect modification by breastfeeding was assessed. Results: …
The Effect Of Marriage On Stage At Diagnosis And Survival In Women With Cervical Cancer, Sanae El Ibrahimi
The Effect Of Marriage On Stage At Diagnosis And Survival In Women With Cervical Cancer, Sanae El Ibrahimi
UNLV Theses, Dissertations, Professional Papers, and Capstones
Marriage is associated with improved health outcomes for many conditions. Married persons enjoy financial stability, social and emotional support, and tend to have better control of health risk behaviors compared to the unmarried. The marriage scene is changing continuously. Americans are marrying less or delaying the engagement to an older age. They are divorcing more, they choose cohabitation as an alternative to marriage, or engage in premarital relationships. As a consequence, barely half of Americans were married in 2011 compared to close to three quarters of Americans were married in the sixties. With the increase of the unmarried population - …
Factors Associated With Parental Decision Making And Childhood Vaccination, Zuwen Qiu-Shultz
Factors Associated With Parental Decision Making And Childhood Vaccination, Zuwen Qiu-Shultz
UNLV Theses, Dissertations, Professional Papers, and Capstones
In order to better understand factors affecting immunization status, logistic regression was used to assess the association of various socio-demographic factors and whether parents would have their child immunized if not a state mandate. Factors included in the study were race, household income, number of children in the household, number of adults in the household, if the child had a primary provider, if the child had a health check-up in the last twelve months, and medical insurance status of the child. The combined Nevada Kindergarten Health Survey Result of 2009-2010 (Year Two) and 2010-2011 (Year Three) conducted by the Nevada …
Evaluation Of Ontario's Street Racers, Stunt And Aggressive Drivers Legislation, Aizhan Meirambayeva
Evaluation Of Ontario's Street Racers, Stunt And Aggressive Drivers Legislation, Aizhan Meirambayeva
Electronic Thesis and Dissertation Repository
The purpose of this thesis was to conduct a process and outcome evaluation of the deterrent effect of Ontario’s Street Racers, Stunt and Aggressive Drivers Legislation. The focus of this study was on police enforcement (implementation), a change in speeding on the provincial highways (intermediate outcome) as well as on a decrease in both extreme speeding convictions and casualties, measured as a sum of injuries and fatalities (criterion outcomes). The deterrent effect of the legislation on Ontario drivers was examined, using data obtained from the Ministry of Transportation of Ontario. Employing interrupted time series …
An Epidemic Model Structured By The Time Since Last Infection, Jorge Alturo Alfaro Murillo
An Epidemic Model Structured By The Time Since Last Infection, Jorge Alturo Alfaro Murillo
Open Access Dissertations
Epidemiological models structured by time since infection have their origin in the seminal work of 1927 by Kermack and McKendrick. Compared to ordinary differential equations (ODE) models, they are able to capture differences in infectivity of the individuals in a more suitable manner. Their use declined in the second half of the 20th century, probably because the theory for ODE models is more robust, complete and has proved successful in providing insights and predictions for many epidemiological problems. Nevertheless, it is important to understand in what occasions the inclusion of time since infection may alter the outcomes in a significant …
Never Smokers -- Are They More Sensitive To The Respiratory Health Effects Of Ambient Air Pollution?, Zuhair Saleh Natto
Never Smokers -- Are They More Sensitive To The Respiratory Health Effects Of Ambient Air Pollution?, Zuhair Saleh Natto
Loma Linda University Electronic Theses, Dissertations & Projects
Background: Several studies show an association between ambient particulate matter (PM) and all-cause mortality. The Adventist Health and Smog 1 (AHSMOG-1) study (N=6,338) has previously found associations between ambient air pollution and incident chronic obstructive pulmonary disease (COPD) using the spatial interpolation method from the three nearest fixed monitoring stations to residence and workplace. However, few studies have assessed the risk of death among disease specific subgroups such as those with COPD.
Objectives: The aims of this study were 1) to assess the effect of chronic exposure to ambient air pollutants on risk of all-cause mortality among persons with COPD …
Violence Among Cocaine And Simultaneous Cocaine And Alcohol Abusers: Results From A Cross-Sectional Study Of Treatment Clients, Sameer Imtiaz
Violence Among Cocaine And Simultaneous Cocaine And Alcohol Abusers: Results From A Cross-Sectional Study Of Treatment Clients, Sameer Imtiaz
Electronic Thesis and Dissertation Repository
A population known for substantial violence is the substance abuse treatment population. This study assessed: (1) extent of violence, (2) personality and mental health correlates of violence, and (3) sex differences in correlates of violence. Data were obtained from the Patterns and Consequences of Cocaine and Alcohol Use for Substance Abuse Treatment Clients Study (N = 403). Logistic regression with backward elimination procedures and modified Poisson regression were used to assess the study objectives. Violence was reported by 44% of treatment clients. Furthermore, number of other drugs used per week (RR: 1.124, 95% CI: 1.063 - 1.189) and aggressive personality …
Risk Factors For Diabetes Mellitus: A Comparative Analysis Of Subpopulation Differences In A Large Canadian Sample, Michael James Taylor
Risk Factors For Diabetes Mellitus: A Comparative Analysis Of Subpopulation Differences In A Large Canadian Sample, Michael James Taylor
Electronic Thesis and Dissertation Repository
Objectives: Certain Canadian subpopulations observe numerous modifiable and non-modifiable risk factors for diabetes. This study compares immigrants and Aboriginals (First Nations, Inuit, and Métis) with Canada-born individuals at higher risks for diabetes, and deciphers the determinant differences between them.
Methods: Pooled Canadian Community Health Survey data (2001-2010) were used. Time trends for diabetes within each subsample were calculated using individual survey year prevalence rates; diabetes diagnoses were self-reported (N=33,565). Various risk factors were also examined using logistic regression.
Results: Diabetes prevalence rates significantly increased from 2001 to 2010 for each subpopulation, as well as the total sample: Canada-Born individuals (3.9% …
Procedural Rates, Economic Costs, And Geographic Variation Of Primary And Revision Lumbar Total Disc Replacement, Anthony J. Wheeler
Procedural Rates, Economic Costs, And Geographic Variation Of Primary And Revision Lumbar Total Disc Replacement, Anthony J. Wheeler
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Lumbar total disc replacement (TDR) surgery is a new procedure that treats degenerative disc disease, a remarkably common, disabling, and costly condition. Three distinct studies were conducted to address the longevity, costs, and geographic variation of the lumbar TDR procedure.
These three studies found lumbar TDR to have a revision burden and economic revision burden that has remained consistent since this procedure’s introduction in the
mid-2000s. The economic revision burden made this a lower-cost procedure than lumbar fusion, with a tradeoff in terms of revision burden being higher for lumbar TDR. The overall rate at which this procedure is performed …
An Exploration Of The Relationships Between Markers Of Social Status And Position And Hiv Risk Behaviours In African, Caribbean, And Other Black Populations, Shamara M. Baidoobonso
An Exploration Of The Relationships Between Markers Of Social Status And Position And Hiv Risk Behaviours In African, Caribbean, And Other Black Populations, Shamara M. Baidoobonso
Electronic Thesis and Dissertation Repository
African, Caribbean, and other Black (ACB) people are a priority group for HIV prevention in Canada, but little is known about the epidemiology of HIV risk in this population. The overall goal of this thesis is to guide HIV prevention interventions for ACB communities. It focuses on social factors that impact HIV vulnerability.
This research used data from the Black, African, and Caribbean Canadian Health Study—a mixed methods study that used 30 semi-structured interviews, and a cross-sectional survey using a structured, self-administered quantitative questionnaire to collect information about HIV and health from 188 ACB people.
The first manuscript compares risk …
The Public Health Impact Of Maternal Smoking Cessation During Pregnancy : The San Bernardino County Experience, Michael Batech
The Public Health Impact Of Maternal Smoking Cessation During Pregnancy : The San Bernardino County Experience, Michael Batech
Loma Linda University Electronic Theses, Dissertations & Projects
Most studies of maternal tobacco cessation during pregnancy have estimated measures of effect that can be useful in identifying the exposure as an etiologic risk factor in maternal and child health. However, in the case of maternal tobacco use there is overwhelming evidence for a causal role in adverse infant outcomes, and public health needs to focus on measures of potential impact in order to better prioritize and allocate resources toward interventions. The aims of this dissertation were: 1) to investigate the public health impact of smoking cessation during pregnancy among mothers giving birth in San Bernardino County, California; and …
Associations Between Alcohol Consumption And Fasting Blood Glucose In Young Adults, Julie Ann Lucca
Associations Between Alcohol Consumption And Fasting Blood Glucose In Young Adults, Julie Ann Lucca
Master's Theses
Current research shows moderate alcohol consumption is associated with decreased risk of diabetes and excessive consumption or binge drinking can cause insulin resistance and diabetes. In 2010, diabetes was the seventh leading cause of death in the United Statesand was responsible for significant health complications: blindness, kidney failure, and limb amputations, and is a large national economic burden. Fasting blood glucose (FBG) is a tool used to help diagnose diabetes. Abnormally high FBG, ≥100 mg/dl, is indicative of diabetes and pre-diabetes. Few studies have observed diabetic prevalence among young adults or college students. Studying young adults can help provide added …
Geographic And Temporal Epidemiology Of Campylobacteriosis, Jennifer Weisent
Geographic And Temporal Epidemiology Of Campylobacteriosis, Jennifer Weisent
Doctoral Dissertations
Campylobacteriosis is a leading cause of gastroenteritis in the United States. The focus of this research was to (i) analyze and predict spatial and temporal patterns and associations for campylobacteriosis risk and (ii) compare the utility of advanced modeling methods. Laboratory-confirmed Campylobacter case data, obtained from the Foodborne Diseases Active Surveillance Network were used in all investigations.
We compared the accuracy of forecasting techniques for campylobacteriosis risk in Minnesota, Oregon and Georgia and found that time series regression, decomposition, and Box-Jenkins Autoregressive Integrated Moving Averages reliably predict monthly risk of infection for campylobacteriosis. Decomposition provided the fastest, most accurate, user-friendly …
The Association Of Diet And Physical Activity With Stroke Mortality Results From The Adventist Health Study-1, Tahereh Zamansani
The Association Of Diet And Physical Activity With Stroke Mortality Results From The Adventist Health Study-1, Tahereh Zamansani
Loma Linda University Electronic Theses, Dissertations & Projects
Stroke is one of the leading causes of death and disability, with major global public health implications. Stroke ranks No. 4 among all causes of death, behind heart disease, cancer, and chronic lower respiratory disease (CLRD). Stroke accounts for almost 1 of every 18 deaths in the United States. Women accounted for 60.6% of stroke deaths. Death certificate data show that the mean age at stroke death was 79.6 years; males had a younger mean age (76.3) than females.
There is still a great scientific uncertainty among researchers and epidemiologists about the magnitude of any preventive effect, mechanisms of action …
Cardiovascular Disease Among Diabetic Women With Bilateral Oophorectomy., Duke Appiah
Cardiovascular Disease Among Diabetic Women With Bilateral Oophorectomy., Duke Appiah
Electronic Theses and Dissertations
Cardiovascular Disease (CVD) is the leading cause of death in women and the risk is increased threefold in diabetics. In postmenopausal diabetics, the ovary responds to hyperinsulinemia by increasing secretion of testosterone precursors which increases the risk of CVD. Data from the National Health and Nutrition Examination Survey (1988-2010) and the Study of Osteoporotic Fractures were used to test the hypothesis that a history of bilateral oophorectomy -surgical removal of both ovaries-would decrease the risk of CVD among postmenopausal diabetic women due to reduced androgen levels. Logistic regression, discrete time logit model, B-Spline regression and Cox proportional hazards models were …
Landscape Epidemiology And Machine Learning: A Geospatial Approach To Modeling West Nile Virus Risk In The United States, Sean Gregory Young
Landscape Epidemiology And Machine Learning: A Geospatial Approach To Modeling West Nile Virus Risk In The United States, Sean Gregory Young
Graduate Theses and Dissertations
The complex interactions between human health and the physical landscape and environment have been recognized, if not fully understood, since the ancient Greeks. Landscape epidemiology, sometimes called spatial epidemiology, is a sub-discipline of medical geography that uses environmental conditions as explanatory variables in the study of disease or other health phenomena. This theory suggests that pathogenic organisms (whether germs or larger vector and host species) are subject to environmental conditions that can be observed on the landscape, and by identifying where such organisms are likely to exist, areas at greatest risk of the disease can be derived. Machine learning is …
Examining Stage At Diagnosis And Survival In Three Cancers With Definitive Screening Guidelines For Average-Risk Adults: The Role Of Marital Status, David J. Blackley
Examining Stage At Diagnosis And Survival In Three Cancers With Definitive Screening Guidelines For Average-Risk Adults: The Role Of Marital Status, David J. Blackley
Electronic Theses and Dissertations
Each year there are more than 350 000 new cases and nearly 100 000 deaths attributed to colorectal, female breast, and cervical cancer in the United States. Screening tests can reduce morbidity and mortality associated with these cancers. Patient marital status has been associated with health outcomes, but no study has focused on the relationship of marriage with disease stage and survival for the 3 cancers with established screening guidance. It is critical to identify special populations that may be at risk for poor cancer outcomes.
The objective of this study was to examine the relationship of marital status with …
Pain Management And Menopausal Health Outcomes In Multiple Sclerosis, Rachel Jawahar
Pain Management And Menopausal Health Outcomes In Multiple Sclerosis, Rachel Jawahar
Theses and Dissertations
Background: Previous studies have addressed multiple sclerosis (MS) symptom management and improved health-related quality of life (HrQOL). Yet lowered estrogen levels in post-menopasual women with MS may further worsen physical function and symptomology and not all types of pain management have been examined. Objectives: For post-menopausal women with MS, we evaluated the extent to which smoking is associated with worsened health outcomes and HrQOL, and the extent to which menopausal hormone treatment (MHT) improves health outcomes and HrQOL. For all adult men and women with clinically diagnosed MS, we systematically reviewed pharmacological and non-pharmacological strategies for the reduction of pain. …
Correlates And Predictors Of Risky Sexual Partnering, Jennifer Nield
Correlates And Predictors Of Risky Sexual Partnering, Jennifer Nield
Theses and Dissertations
Introduction: Sexually Transmitted Diseases, including HIV/AIDS, continue to be a major burden in the United States. Sexual partnering behaviors contribute to the spread of STDs. Sexual concurrency has been shown to exponentially increase STD prevalence in populations. Serial monogamy with short periods between sexual partners also introduces risk. Methods: We identified sexually active men and women from the 2006-2010 National Survey of Family Growth (NSFG) and used sub sets for each particular study. Sexual partnering was defined as being concurrent, serially monogamous or monogamous in the previous year. Polytomous logistic regression models were developed to evaluate the associations between age …
Sanitation Infrastructure, Medicinal Plant Use And Diarrhea In Rural Costa Rican Communities, Travis Clifford Sondgerath
Sanitation Infrastructure, Medicinal Plant Use And Diarrhea In Rural Costa Rican Communities, Travis Clifford Sondgerath
Open Access Theses
Diarrhea is estimated to be responsible for 3.3 million deaths a year and is particularly problematic in the developing world among children. The Millennium Development Goals established by the United Nations has set a goal of reducing mortality among children by two thirds during the new millennium. However due to the nature of diarrhea it is often difficult to study its patterns, distribution, and determinants.
This study presents an analysis of the relationship between diarrhea and sanitation infrastructure and medicinal plant use in 4 rural Costa Rican communities. Over the past few decades' access to clean drinking water and municipal …
Using Geospatial Technologies To Characterize Relationships Between Travel Behavior, Food Availability, And Health, Warren J. Christian
Using Geospatial Technologies To Characterize Relationships Between Travel Behavior, Food Availability, And Health, Warren J. Christian
Theses and Dissertations--Geography
Epidemic obesity in the U.S. has prompted exploration of causal factors related to the built environment. Recent research has noted statistical associations between the spatial accessibility of retail food sources, such as supermarkets, convenience stores, and restaurants, and individual characteristics such as weight, socioeconomic status, and race/ethnicity. These studies typically use residential proximity or neighborhood density to food sources as the measure of accessibility. Assessing food environments in this manner, however, is very limiting. Since most people travel outside of their neighborhood on a daily basis, the retail food sources available to individuals residing in the same area could vary …
The Psychological Impacts Of False Positive Ovarian Cancer Screening: Assessment Via Mixed And Trajectory Modeling, Amanda T. Wiggins
The Psychological Impacts Of False Positive Ovarian Cancer Screening: Assessment Via Mixed And Trajectory Modeling, Amanda T. Wiggins
Theses and Dissertations--Epidemiology and Biostatistics
Ovarian cancer (OC) is the fifth most common cancer among women and has the highest mortality of any cancer of the female reproductive system. The majority (61%) of OC cases are diagnosed at a distant stage. Because diagnoses occur most commonly at a late-stage and prognosis for advanced disease is poor, research focusing on the development of effective OC screening methods to facilitate early detection in high-risk, asymptomatic women is fundamental in reducing OC-specific mortality. Presently, there is no screening modality proven efficacious in reducing OC-mortality. However, transvaginal ultrasonography (TVS) has shown value in early detection of OC. TVS presents …
Data Mining And Pattern Discovery Using Exploratory And Visualization Methods For Large Multidimensional Datasets, Hsin-Fang Li
Data Mining And Pattern Discovery Using Exploratory And Visualization Methods For Large Multidimensional Datasets, Hsin-Fang Li
Theses and Dissertations--Epidemiology and Biostatistics
Oral health problems have been a major public health concern profoundly affecting people’s general health and quality of life. Given that oral health data is composed of several measurable dimensions including clinical measurements, socio-behavioral factors, genetic predispositions, self-reported assessments, and quality of life measures, strategies for analyzing multidimensional data are neither computationally straightforward nor efficient. Researchers face major challenges to identify tools that circumvent the processes of manually probing the data.
The purpose of this dissertation is to provide applications of the proposed methodology on oral health-related data that go beyond identifying risk factors from a single dimension, and to …
Associations Between The Perceived And Built Food Environment, Timothy L. Barnes
Associations Between The Perceived And Built Food Environment, Timothy L. Barnes
Theses and Dissertations
Neighborhood food environments have been associated with dietary intake and obesity. Measures of the food environment have typically been characterized with geographic information systems (GIS)-based measures, however, the use of perception-based measures of the food environment have increased in frequency. Few studies have fully examined the relationship between perceptions and GIS-based measures of the food environment, especially considering the congruency between perceived and GIS-based presence of specific retail food outlets, nor the relationship between food outlets and perceived availability of healthy foods or fast food opportunities.
Telephone survey data from 705 residents in an eight-county region of South Carolina were …
Geographical Proximity To Health Facilities And Breast Cancer Morbidity And Mortality Among Women In South Carolina's Best Chance Network, Leepao Khang
Theses and Dissertations
Death rates for breast cancer have steadily decreased in women due to early detection, such as mammography, and improved treatments. Despite the benefit of mammography, many women are not up-to-date on screening and do not receive timely follow-up after abnormal mammogram finding. Breast cancer is a major contributor to morbidity and mortality among women in South Carolina. To reduce the disproportionate burden of breast cancer and cervical cancer among women in South Carolina, the South Carolina Best Chance Network (BCN) was established to provide service delivery and ensures timely and complete diagnostic follow-up and treatment initiation for underserved women.
The …
Using Administrative Data To Estimate The Burden Of Chlamydia Among Medicaid Managed Care Enrollees In New York State, Lindsay W. Cogan
Using Administrative Data To Estimate The Burden Of Chlamydia Among Medicaid Managed Care Enrollees In New York State, Lindsay W. Cogan
Legacy Theses & Dissertations (2009 - 2024)
Infection with Chlamydia trachomatis is of public health concern because of its adverse effects on reproduction. Women infected with Chlamydia can develop pelvic inflammatory disease, which can lead to serious reproductive system morbidity including ectopic pregnancy and infertility.
Hypertension Prevalence Among Adults In The United States (Nhanes 2007-2010) : Are There Race And Hispanic Origin Differences?, Philip M. Dimura
Hypertension Prevalence Among Adults In The United States (Nhanes 2007-2010) : Are There Race And Hispanic Origin Differences?, Philip M. Dimura
Legacy Theses & Dissertations (2009 - 2024)
Purpose: To investigate the prevalence of hypertension across race and ethnic categories in the National Health and Nutrition Examination Survey for years 2007 to 2010.
In Utero Exposure To Antiretroviral Medication And Congenital Malformation Outcomes In New York State 1998-2010, Stephen Goins
In Utero Exposure To Antiretroviral Medication And Congenital Malformation Outcomes In New York State 1998-2010, Stephen Goins
Legacy Theses & Dissertations (2009 - 2024)
Objective: To examine the relationships between HIV ARV use during pregnancy and congenital malformations outcomes in New York State.
Effect Of Data Aggregation At Two Geographic Levels On The Association Between Absms And Gonorrhea Rates In Nys, 1999-2001, Christina Michelle Gray
Effect Of Data Aggregation At Two Geographic Levels On The Association Between Absms And Gonorrhea Rates In Nys, 1999-2001, Christina Michelle Gray
Legacy Theses & Dissertations (2009 - 2024)
This study compared the association between residential area factors and gonorrhea, aggregated at both the census tract versus ZIP code levels. Prior research has found that census block groupings are most optimal in neighborhood-level studies, followed by census tracts and ZIP codes. Because several healthcare databases currently only provide ZIP code level data, the aim of this study was to examine whether there exists a meaningful difference between the interpretation of census tract and ZIP code aggregate data. Our study measured the association between socioeconomic factors and gonorrhea in New York State, exclusive of New York City (NYC), census tracts …