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 18 of 18 for “"nested-case control study"”.
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A nested case-control study of lung cancer and central nervous system neoplasms among chemical workers
<p>This case-control study evaluates the relation between lung cancer and central nervous system neoplasms (CNSN) and employment at a dye and resin manufacturing plant. The study includes 51 lung cancer and 11 CNSN cases who were members of a cohort previously examined in a retrospective follow-up …
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Epidemiology and clinical investigation of West Nile Virus encephalitis in Houston, Texas
… medical chart reviews were completed for 172 WNV cases hospitalized in the Houston area between 2002 and 2004; 113 had encephalitis (including 17 fatal cases), 47 had meningitis, and 12 were uncomplicated fever cases. Risk factors associated with progression from encephalitis to death were renal …
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Occupational exposures and the development of lung disease in Minnesota miners
… as part of the Minnesota Taconite Workers Health Study, an epidemiologic study looking at the potential health effects from work in the taconite industry. There are three areas of research within this dissertation: 1) A nested case-control study that examines the association between duration of …
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Institutional and Patient Level Predictors of Multi-Drug Resistant Healthcare-Associated Infections
… associated with implementation of infection control policies and MDRO rates, and the current knowledge on the use of infection control policies on the national level. In the second chapter, I use data from a national cross-sectional study to describe the range of MDRO screening and infection …
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Calcium metabolism and breast cancer risk
… examined in relation to breast cancer risk in a nested case-control study comprising 764 breast cancer cases within the Malmö Diet and Cancer Study. Serum calcium levels were positively associated with breast cancer risk in overweight/obese women. In premenopausal women, serum calcium was in one …
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The relationship between water and Helicobacter pylori and the burden of related illnesses in the Township of Langley, British Columbia
… disease and gastritis was 20, 450 and 1,777 cases per 100,000 population respectively, and average annual incidence was 13, 268 and 899 cases per 100,000 respectively. There was a significant decrease in the prevalence and incidence of peptic ulcer disease and the incidence of gastritis in …
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Medications, sex hormones and reproductive factors in relation to gastro-oesophageal cancer risk and survival
… in humans has not been studied. A cohort study using UK primary care records from the Clinical Practice Research Datalink (CPRD) database was conducted to examine this association and found furosemide did not improve gastro-oesophageal cancer survival. Also within the CPRD database, use of …
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Male Subfertility and Prostate Cancer Risk: Epidemiological and Genetic Studies
… and prostate cancer (PCa) risk in a nested case-control study to test the hypothesis that subfertile men are at lower risk of developing PCa than fertile men, since they are frequently hypogonadal secondary to testicular dysfunction. Our specific aims were to investigate: 1) whether …
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Self-Monitoring of Blood Glucose and Hypoglycemia-Related Healthcare Utilization in Saskatchewan
… glucose focuses on improvements in glycemic control. Self-monitoring of blood glucose may also be used to detect hypoglycemia, but the relationship between test strip use and hypoglycemic events has not been well studied. Thus, the purpose of this study was to determine the relationship …
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Genomics & Gastroenteritis - A Journey in Applied Epidemiology
… at a wedding, where I performed a nested case control study to try to identify the source of infection. The results indicated that the duck breast canape was the most likely source of infection. This investigation is also presented as a manuscript that has been submitted to …
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Genomics & Gastroenteritis - A Journey in Applied Epidemiology
… at a wedding, where I performed a nested case control study to try to identify the source of infection. The results indicated that the duck breast canape was the most likely source of infection. This investigation is also presented as a manuscript that has been submitted to …
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Evaluation of suboptimal health status and prospective levels of oxidative stress biomarkers and angiogenic growth mediators with placental anatomy and pathology in normotensive and preeclamptic births
… in a Ghanaian Population. This longitudinal nested case-control study was based on the Ghanaian Suboptimal Health Status Cohort Study (GHOACS) that recruited 593 normotensive pregnant women (NTN-PW) at baseline (10-20 weeks gestation) from the Komfo Anokye Teaching Hospital between June 2017 …
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Epidemiological investigations of liver cancer: biomarkers, reproductive factors and modifiable risk factors:
… to synthesize evidence from previous cohort and nested-case control studies. We found some evidence of an increased risk of primary liver cancer with high iron levels as measured by serum ferritin or serum iron. <br/><br/>Proton pump inhibitors and histamine-2 receptor antagonists are commonly …
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The relative importance of human and animal sources of vancomycin-resistant Enterococcus faecium in immunocompromised patients in hospital
… and critically ill patients. Despite infection control measures, rates of vancomycin-resistant E. faecium (VREfm) bacteraemias have failed to decline in the United Kingdom, and Cambridge University Hospitals (CUH) report the highest numbers nationally. The aims of my PhD were to use …
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Inflammatory response in maternal serum during preterm labour
… labour. Therefore, the overall objective of this study was to determine several inflammatory markers in maternal serum from pregnant women in labour (either term or preterm) vs. non-labouring controls. We completed a nested case control study in which singleton pregnancies were recruited at the …
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Upper gastrointestinal adenocarcinoma: associations with gastric secretory function and gender
… GI adenocarcinoma is male gender. In the first study we aimed to investigate the association between the pattern of H.pylori gastritis and gastric secretory function in 255 H.pylori-infected patients with dyspepsia showing normal endoscopy. Our findings showed that maximal acid output correlates …
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Comparative Effectiveness of Methotrexate-Based Disease-Modifying Antirheumatic Drug Combinations for Rheumatoid Arthritis
Objective: The study objectives were [1] to examine factors associated with adding a conventional synthetic (cs) disease-modifying antirheumatic drug (DMARD), tumor necrosis factor inhibitor (TNFi) biological (b) DMARD, non-TNFi bDMARD, or targeted synthetic (ts) DMARD for patients with rheumatoid …