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 44 for “"Case–control studies"”.
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Case-control studies of vaginal and vulvar cancers and gynecologic screening: A SEER-Medicare analysis
… vaginal and vulvar cancers, few epidemiological studies have been performed on this group (Mabuchi, et al. 1985, Brinton, et al. 1990a, Brinton, et al. 1990b) to determine if gynecologic screening reduces the risk of invasive vaginal and vulvar cancers. Previous studies, that have been published, …
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Topics in odds ratio estimation in the case-control studies and the bioequivalence testing in the crossover studies.
… different sample sizes and odds ratios for the case-control clinical studies. Our investigations implies the consistent superiority of the approximate integrated confidence interval. Also, we eliminate the effect of several parameters on a bioequivalence testing procedure that plays an important …
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Hepatitis C Diagnosis and Treatment, Impact on Engagement and Behaviour of People Who Inject Drugs, the Hooked C project
… PWID. Following this, a series of retrospective case control studies investigated whether HCV diagnosis and treatment engagement reduces risk of all-cause mortality and drug related death among PWID, and whether any effect is dependent on treatment regimen and intensity of engagement with …
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Human papillomaviruses in skin cancer and cervical cancer
… aetiology of cervical cancer. Two of our NMSC studies were hospital-based case-control studies where biopsies from skin tumours and healthy skin were analysed for presence of HPV DNA and serum samples for presence of antibodies to 14 different HPV types. The third NMSC study and the cervical …
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Genetic factors associated with performance and exercise-associated weight loss in Ironman triathletes
… A genetic association approach was used in case-control studies to identify specific sequence variants within selected candidate genes. These candidate genes (IL-6, 5-HTT and MAO-A) were selected based on the biological function of their encoded proteins, which have been implicated in …
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Environmental Toxins and Essential Trace Elements at Delivery and ADHD
… and development. Register and biobank based case-control studies were conducted to investigate the relationship between prenatal exposure to these chemicals and attention deficit hyperactivity disorder (ADHD) in childhood. The study base comprised children born in Malmö, Sweden, between 1978 …
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Clinical assessment of arterial stiffness
… stiffness than intima media thickness (IMT). Case control studies investigating changes in subjects with PAD and CKD demonstrated a greater increase in arterial stiffness than IMT when compared to healthy controls. An epidemiological study, investigating the effect of antihypertensives on …
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Phenotype prediction and feature selection in genome-wide association studies
Genome wide association studies (GWAS) search for correlations between single nucleotide polymorphisms (SNPs) in a subject genome and an observed phenotype. GWAS can be used to generate models for predicting phenotype based on genotype, as well as aiding in identification of specific genes …
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The association between interleukin-1 gene polymorphism and periodontitis in adults in Africa: A systematic review
… EBSCO) were searched for English language case-control studies, reporting on the association between IL-1 and periodontitis in Africa, with no limit to the time until 2023. Covidence® software was used to manage title and abstract screening and full-text review by two reviewers …
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Helicobacter pylori and its Association with Gastric and Oesophageal Carcinomas
… in the gastric mucosa. The aim of our studies was to investigate the association between H. pylori seropositivity and the development of gastric and oesophageal carcinomas. Nested case-control studies were performed in the Malmö Preventive Medicine cohort consisting of 32,906 subjects. …
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Properties Of Logistic Regression Models With Correlated Observations
… to be equivalent to a well-known model used in case-control studies.;Properties of several estimators of the regression parameter are investigated. Consistency of the unconditional and conditional maximum likelihood estimators is established and expressions derived for the asymptotic variance of …
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Cone Beam Computerized Tomography Analysis of Haller cell : Prevalence and Clinical Significance.
… maxillary sinus ostia. HC is an indicator of OD. Case-control studies are recommended to investigate the relationship between HC and MS.</p> <p><strong></strong></p> <p><strong></strong></p>
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Surveillance Imaging Following Curative-Intent Surgery for Non-Small Cell Lung Carcinoma: A Systematic Review
… Cochrane Library) were searched for pertinent studies published between 1990 and 2010. Major search concepts included non-small cell lung carcinoma, surveillance, curative resection, recurrence, second primary lung cancer, computed tomography, and chest x-ray. Baseline data and results from …
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Correlation of Macroscopic and Microscopic Placental Lesions with Obstetric and Neonatal Outcomes in an unselected Population
… outcomes are largely based on retrospective case control studies: the clinical groups studied tend to be high-risk. Understanding of the significance of these lesions in the wider population is lacking. This study reports on the clinical events and placental lesions documented in 1119 …
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Hyper and structural Markov laws for graphical models
… of these properties to the analysis of case-control studies. It has long been established that the maximum likelihood estimates for the odds-ratio may be found by logistic regression, in other words, the "incorrect" prospective model is equivalent to the correct retrospective model. I …
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Histopathological Changes in Dental Pulp Associated with Periodontitis: A Systematic Review and Meta Analysis
… changes in the dental pulp. While some studies suggest associations, others remain inconclusive, necessitating a comprehensive evaluation of this relationship. Objectives: This systematic review and meta-analysis aim to assess histopathological changes in the dental pulp associated with …
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Hormonal factors in rheumatoid arthritis – Their impact on disease risk and severity
… samples were collected. We identified incident cases of RA by linking the cohorts to four different RA registers. In nested case-control studies, we studied hormonal predictors in women from the MDCS cohort, and analysed androgens in males from the MPMP. By a structured review of female incident …
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Rewiring neural conduits : engineering neuromuscular tissues for bidirectional neuroprosthetic interfacing
… neurological health, and myoelectric prosthesis control. Utilizing a paradigm of coevolution, I simultaneously engineer neuromuscular anatomy and bioelectronics to enable seamless, bidirectional neuroprosthetic interfacing. In this dissertation, I describe the design and preclinical validation of …
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Risk for Preeclampsia Associated with Nutritional Deficiencies and Modified by APOL1 Genotype
… gestational time periods. Additionally, a case-control study was conducted using a subset of African American mother and infant dyads collected from the Conditions Affecting Neurocognitive Development and Learning in Early Childhood (CANDLE) cohort in Memphis, TN. This study included …
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Measurement Error in Exposure Assessment: An Error Model and its Impact on Studies on Lung Cancer and Residential Radon Exposure in Germany
Case-control studies on lung cancer and residential radon exposure had been conducted in Germany. Relative risk estimates from primary analysis were now subject to accounting for uncertainties in radon exposure and in the most potent confounder smoking. The regression calibration method and an …
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