Search for dissertations about: "Case-control association study"
Showing result 1 - 5 of 308 swedish dissertations containing the words Case-control association study.
-
1. Molecular epidemiology approach : nested case-control studies in glioma and lymphoid malignancies
Abstract : BACKGROUND: Nested case-control studies aim to link molecular markers with a certain outcome. Repeated prediagnostic samples may improve the evaluation of marker-disease associations. However, data regarding the benefit of repeated samples in such studies are sparse. READ MORE
-
2. Efficient design and analysis of extended case-control studies
Abstract : The nested case-control design is widely used in epidemiology for its efficiency, as it combines the advantages of both cohort and case-control designs. This design is an extension of the matched case-control design, where the matching variable is the time of occurrence of the outcome. READ MORE
-
3. Myocardial infarction and cardiac regulation in relation to vibration exposure
Abstract : The purpose of this thesis was to assess the possible risk of myocardial infarction in work entailing exposure to vibration, and to study whether there is any relation between short-term exposure to vibration and cardiac regulation. Epidemiological methods were applied to investigate a possible association between occupational exposure to vibration and myocardial infarction. READ MORE
-
4. Prospective studies of hormonal and life-style related factors and risk of cancer
Abstract : Background: Androgens are important in prostate cancer development but how circulating levels of androgens affect risk of prostate cancer of different aggressiveness is not clear. Being childless has been associated with a lower risk of prostate cancer, but it is not clear if this association is causal or a result of residual confounding. READ MORE
-
5. Nonmalignant health effects of arsenic exposure
Abstract : This thesis comprises a series of studies concerning occupational and environmental exposure to arsenic and some novel chronic health effects of this element, namely diabetes mellitus and hypertension. Substantial prevalence of the well-known skin manifestations of arsenic ingestion was also found to occur as a result of environmental exposure through drinking water. READ MORE