Search for dissertations about: "case-cohort"

Showing result 1 - 5 of 10 swedish dissertations containing the word case-cohort.

  2. 1. Correlated random effects models for clustered survival data

    Author : Frank Eriksson; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; competing risks; case-cohort; semiparametric; Survival analysis; random effects; routine register; frailty model; Survival analysis; frailty model; competing risks; random effects; case-cohort; routine register; semiparametric;

    Abstract : Frailty models are frequently used to analyse clustered survival data in medical contexts. The frailties, or random effects, are used to model the association between individual survival times within clusters. READ MORE

  4. 2. Semiparametric survival models for routine register data

    Author : Frank Eriksson; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Survival; transformation; clustered; likelihood; random effects; case-cohort; routine register; semiparametric; clustered;

    Abstract : Routine registers offer researchers opportunities to carry out studies of covariate effects on lifetimes of rare diseases otherwise infeasible because of the large cohorts required. Familial relationships necessary for analysis of environmental or genetic factors can be identified by record linking. READ MORE

  5. 3. Phytosterols. Effect of intake on cholesterol absorption and colorectal cancer risk

    Author : Lena Normén; Göteborgs universitet; []
    Keywords : phytosterols; phytostanols; soy sterols; sitostanol; ester; gas-liquid chromatography; GLC; cholesterol absorption; sterol excretion; fruit; vegetables; cereals; colon cancer; rectal cancer; dietary fiber;

    Abstract : Phytosterols are lipid components of all food items of plant origin. They are effective in decreasing plasma cholesterol concentrations, but have also been suggested to protect against colorectal cancer. READ MORE

  6. 4. Population-based studies of atrial fibrillation and ischemic stroke

    Author : John Berntsson; Kardiovaskulär forskning - epidemiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Atrial fibrillation; Ischemic stroke; Biomarker; Stroke; Natriuretic peptides; Vascular endothelial growth factor; Epidemiology; Atrial Fibrillation; Stroke; Ischemic stroke; Natriuretic peptides; Vascular endothelial growth factor; Epidemiology;

    Abstract : AbstractBackground: Atrial fibrillation (AF) is a major risk factor for ischemic stroke and the most common cause of cardioembolic stroke. Early detection of AF and AF subjects at high risk for stroke is therefore important. READ MORE

  7. 5. Diet and the risk of latent autoimmune diabetes in adults (LADA) : studies on the association with fish and sweetened beverages

    Author : Josefin Edwall Löfvenborg; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Diabetes is an increasing public health problem affecting a breathtaking number of people worldwide. The knowledge about modifiable lifestyle factors influencing diabetes risk is extensive for type 2 diabetes, but limited for autoimmune forms of diabetes such as type 1 diabetes. READ MORE