Sökning: "nested case-control"

Visar resultat 1 - 5 av 127 avhandlingar innehållade orden nested case-control.

  1. 1. Molecular epidemiology approach : nested case-control studies in glioma and lymphoid malignancies

    Författare :Florentin Späth; Beatrice S. Melin; Carl Wibom; Ann Sofie Johansson; Ingvar Bergdahl; Ola Landgren; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Glioma; B cell lymphoma; multiple myeloma; risk; repeated samples; prospective longitudinal study; nested case-control study; circulating sEGFR and sERBB2; circulating immune markers and growth factors; marker disease association; disease progression; NSHDS; Janus; linear mixed modeling; epidemiologi; Epidemiology; Oncology; onkologi;

    Sammanfattning : 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. LÄS MER

  3. 2. Efficient design and analysis of extended case-control studies

    Författare :Bénédicte Delcoigne; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : 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. LÄS MER

  4. 3. Prospective studies of hormonal and life-style related factors and risk of cancer

    Författare :Sara Wirén; Pär Stattin; Håkan Jonsson; Tanja Stocks; Alicja Wolk; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; prostate cancer; epidemiology; androgens; risk factors; fatherhood status; dizygotic twins; height; cohort; case-control; prospective; Cancer Epidemiology; cancerepidemiologi;

    Sammanfattning : 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. LÄS MER

  5. 4. Diet and postmenopausal breast cancer - With a focus on low-grade inflammation

    Författare :Joana Alves Dias; Nutritionsepidemiologi; []
    Nyckelord :Oxidative stress; low-grade inflammation; Biomarkers of inflammation; cytokines; ICC; variation; diet; dietary recommendations; diet quality index; food patterns; reduced rank regression; obesity; CVD; postmenopausal breast cancer; epidemiology; cross sectional; nested case-control;

    Sammanfattning : Diet-breast cancer studies have shown that “healthy eating patterns” are associated with decreased risk whereas unhealthy patterns (especially those including alcohol) are associated with increased risk, particularly in postmenopausal women. The potential mechanisms behind the observed associations are still under investigation. LÄS MER

  7. 5. Epidemiological Aspects of Asthma in Primary Care : Special Reference to Prevalence, Clinical Detection and Validation

    Författare :Mikael Hasselgren; Gunnar Johansson; Staffan Janson; David Price; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicine; Adult; Adolescent; Asthma; Case-Control Studies; Causality; Child; Cross-Sectional Studies; Diagnosis Computer-Assisted; Epidemiology; Prevalence; Primary Health Care; Validation Studies; Medicin; Dermatology and venerology; clinical genetics; internal medicine; Dermatologi och venerologi; klinisk genetik; invärtesmedicin;

    Sammanfattning : Objectives. To describe the prevalence of asthma in a mid-Swedish region and measure the detection rate of asthma in primary care. To compare clinical outcomes for adolescents with asthma in primary care or in paediatric care and to perform a clinical validation in children with airway, nose and skin symptoms. Material and methods. LÄS MER