Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 4022 for “"Cohort"”.
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A cohort perspective of U.S. adult mortality
This dissertation advances a cohort perspective to analyze trends in racial and educational disparities in U.S. adult mortality. The project is organized around three themes. First, I emphasize that recent temporal changes in U.S. adult mortality risk are rooted in cohort forces. Unfortunately, …
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Patient Cohort Visual Analytics for Post-Treatment Care
… that depends on longitudinal studies of patient cohorts, in which identifying the risk of adverse treatment outcomes is critical to improving personalized care. This process benefits from visual analytics because it can overcome many of the challenges that arise with complex patient cohort data. …
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Cohort Differences in Perceptions of Helpful Counselor Characteristics
The present study examined age cohort differences in older and younger adults as they relate to perceptions of helpful counselor characteristics. The present study also assessed whether previous help-seeking behavior influences perceptions of what counselor characteristics would be helpful. The …
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Hemaglobinopathy and Pregnancy Outcomes: A Historical Cohort Study
… pregnancy outcomes. We conducted a historical cohort study using Discharge Abstract Database for the fiscal year 1991-1992 through 2007-2008. We estimated the frequency of pregnant women with hemoglobinopathy and examined their associations with adverse pregnancy outcomes. Women with sickle …
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Computer experiments with cohort fertility in birth projections.
Massachusetts Institute of Technology. Dept. of City and Regional Planning. Thesis. 1966. M.C.P.
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A Phenomenological Study of Indonesian Cohort Group's Transformative Learning
<p>This study was set to investigate how a cohort of ten Indonesian teachers experienced transformations in their teaching professionalism upon receiving an assignment of instructional leadership training to other school leaders. These ten teachers, who came from three different Indonesian Jesuit …
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Ornithobacterium hominis isolates from a South African birth cohort
… however, this species is notably absent from cohorts based in the northern hemisphere. Recent microbiome data from the Drakenstein Child Health Study (DCHS) has shown that O. hominis is present in South Africa; however, there is a lack of microbiological data regarding this species in Africa. …
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COVID-19 Vaccine Hesitancy in a US Public University Cohort
… at baseline and followed-up among the same cohort. Participants were asked to complete daily electronic check-ins (email or text) to assess symptoms and risk factors. At baseline, 14,353 (79.8%) were vaccine receptive and 3,641 (20.2%) were vaccine hesitant (responded that when the COVID-19 …
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Graduate Student Experiences: The Impact of a Mixed-Cohort Format
Student cohorts have been regaining popularity among graduate programs over the past few decades because they offer numerous advantages for students and can be molded to fit programmatic needs. The format of these cohorts range from open to closed according to the inclusion or exclusion of …
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Outcomes of Immune Checkpoint Inhibitor-Mediated Colitis: Multicenter Cohort Study
… and outcomes of IMC. This was a retrospective, cohort study of patients who received ICI and developed endoscopically/histologically confirmed IMC between 1/1/2011 and 12/31/2019. Multivariate logistic regression analyses were conducted to assess predictors of IMC recurrence and long duration of …
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Perinatal suicidality: prevalence and correlates in a South African cohort
… South African women who were enrolled in a birth cohort. A well validated screening measure for perinatal depression, the Edinburgh Postnatal depression scale (EPDS) has unknown sensitivity and specificity when assessing perinatal SIB (using question 10: EPDS-Q10) compared to a gold standard …
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The characterization of Lowe Syndrome in a South African cohort
Oculocerebrorenal or Lowe Syndrome (OMIM #309000) is an X-linked recessive condition characterized by a triad of congenital cataracts, proximal renal tubular dysfunction, and variable central nervous system involvement. Nearly all affected boys will be hemizygous for a pathogenic variant in the …
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Targeted re-sequencing of a large South African cardiomyopathy cohort
… the genetic cause of the disease in a large cohort of South African patients with cardiomyopathy. Design: We recruited participants from multiple centres in South Africa and Mozambique between 2015 and 2022. Cases were classified according to phenotypes by a team of experts. Using the …
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Unsupervised discovery of emphysema subtypes in a large clinical cohort
Emphysema is one of the hallmarks of Chronic Obstructive Pulmonary Disease (COPD), a devastating lung disease often caused by smoking. Emphysema appears on Computed Tomography (CT) scans as a variety of textures that correlate with the disease subtypes. It has been shown that the disease subtypes …
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ASSOCIATION BETWEEN ATRIAL SIZE AND CEREBROVASCULAR EVENTS: A RETROSPECTIVE, COHORT STUDY
… remains unclear. We carried out a prospective cohort study to assess the association between LAE, detected using the left atrial volume index (LAVi), and cerebrovascular events (CVE). Methods: We enrolled consecutive adults undergoing transthoracic echocardiography (TTE) between 2012 and 2023 …
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Spontaneous Angiogram Negative Subarachnoid Hemorrhage : A Retrospective Single Center Cohort Study
Background: Spontaneous angiogram negative subarachnoid hemorrhage (SAH) is considered a benign illness with little of the aneurysmal SAH-related complications. We describe the clinical course, SAH-related complications and outcome of patients with angiogram negative SAH. Methods: We …
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Handling missing data in analyses of the UK women's cohort study
… ways of handling missing data in the UK Women Cohort Study (UKWCS). This is a large dataset with continuous, categorical and binary variables with missing values in almost every variable. A number of simple imputation techniques, as well as multiple imputation developed by Rubin (1987), and …
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The Role of Impulsive Aggression in a Cohort of Suicide Attempters
Research Objective: This study attempts to understand the role of impulsive aggression in a group of suicide attempters. The study hypothesized that a greater proportion of suicide attempters would meet criteria as impulsive aggressive than would be found among suicide ideators and unintentionally …
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