Sökning: "misclassification"

Visar resultat 1 - 5 av 40 avhandlingar innehållade ordet misclassification.

  1. 1. Economic perspectives on the obesity epidemic

    Författare :Åsa Ljungvall; [2012]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Obesity; body-mass index; BMI; waist circumference; inequality; socioeconomic inequalities; concentration index; socioeconomic disparities; time trends; economic freedom; misreporting; misclassification;

    Sammanfattning : This thesis takes its starting point in the large spread and rise in obesity prevalence that have been observed around the world, making obesity an increasing public health concern. The thesis consists of an introductory chapter, which justifies the study of obesity from economic perspectives and puts the subsequent studies in context, and four studies that address obesity from different economic perspectives. LÄS MER

  2. 2. Evolving geriatric anthropometrics- an interplay with lifestyle changes, birth cohort effects, and survival implications. : Results from the general population study, “Good Aging in Skåne,” Sweden

    Detta är en avhandling från Lund University: Faculty of Medicine

    Författare :Nivetha Natarajan Gavriilidou; [2017]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Anthropometrics; BMI misclassification; measurement; error correction; prediction equation; surrogate; survival; lifestyle; birth cohort; Swedish elderly; assessment;

    Sammanfattning : There is a rising proportion of aging population worldwide. The high vulnerability of older adults to morbidity and mortality introduces an enormous health and economic burden to themselves and the society. The established leading cause of death among older adults is due to chronic and vascular diseases. LÄS MER

  3. 3. On the use of two-phase sampling in estimation of parameters in domains where data contain misclassification and measurement errors

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Claes Andersson; [1994]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SOCIAL SCIENCES Statistics; computer and systems science Statistics; SAMHÄLLSVETENSKAP Statistik; data- och systemvetenskap Statistik;

    Sammanfattning : .... LÄS MER

  4. 4. Truncation and missing family links in population-based Registers

    Detta är en avhandling från Stockholm : Karolinska Institutet, Department of Medical Epidemiology and Biostatistics

    Författare :Monica Leu; Karolinska Institutet.; Karolinska Institutet.; [2008]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Left-trunction; Swedish Cancer Registry; MultiGeneration Register; family history; misclassification; simulation; Poplab;

    Sammanfattning : Studies of familial aggregation of disease routinely use linked population registers to construct retrospective cohorts. Although such resources have provided numerous estimates of familial risk, little is known regarding the sensitivity of the estimates to assumed disease models and incompleteness of the data, such as truncation and/or missing family links. LÄS MER

  5. 5. Environmental and genetic factors in lung cancer : epidemiologocal and biomolecular studies focusing on nonsmokers

    Detta är en avhandling från Stockholm : Karolinska Institutet, false

    Författare :Fredrik Nyberg; Karolinska Institutet.; Karolinska Institutet.; [1998]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Lung cancer; case-control study; smoking misclassification; exposure misclassification; validation; bias; nonsmoker; smoking; environmental tobacco smoke; ETS; diet; biomarker; glutathione S transferase; GSTM1; N-acetyl transferase; NAT2; hypoxanthine-guanine phosphoribosiyl transferase; hprt; DNA; adducts;

    Sammanfattning : Tobacco smoking is the major cause of lung cancer. Other risk factors include exposure to environmental tobacco smoke (ETS), dietarv habits and genetic factors. When studying such risk factors, confounding from smoking presents a pervasive methodological problem. LÄS MER