Search for dissertations about: "non-response"

Showing result 6 - 10 of 29 swedish dissertations containing the word non-response.

2. 6. A quarter century perspective on low back pain : a longitudinal study

   Author : Carina Bildt Thorbjörnsson; Karolinska Institutet; Karolinska Institutet; []
   Keywords : Interactions; occupational; non-occupational; interview method; retrospective; reliability; gender; chronic and incident; panel study; non-response;

   Abstract : The focus of this thesis is analyses of associations between occupational and non-occupational conditions on the one hand, and low back pain on the other. Methodological aspects of assessment of information about psychosocial working conditions, as well as of consequences of attrition in longitudinal studies, have also been examined. READ MORE

4. 7. Revisional bariatric surgery : more than a moral obligation

   Author : Stephan Axer; Eva Szabo; Ingmar Näslund; Tom Mala; Örebro universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Obesity; bariatric surgery; revisional surgery; sleeve gastrectomy; gastric bypass;

   Abstract : Growing awareness of biological, genetic, environmental, and behavioural factors contributed to the recognition of obesity as a chronic disease. Nowadays, obesity and its medical/surgical treatment is widely acknowledgedin the medical curriculum. READ MORE

5. 8. Complications following anterior cruciate ligament reconstruction

   Author : Jesper Kraus Schmitz; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : Background: Venous thromboembolism (VTE) and septic arthritis (SA) are two rare complications following anterior cruciate ligament reconstruction (ACLR). Due to their rare incidence, risk factors and outcome are difficult to analyse and the aims of this thesis are to improve knowledge in this area. Methods: All studies are register based. READ MORE

6. 9. Studies on Hepatitis B Vaccination and Factors Associated with the Vaccine Response

   Author : Kristina Cardell; Aril Frydén; Matti Sällberg; Clas Ahlm; Linköpings universitet; []
   Keywords : MEDICINE; MEDICIN;

   Abstract : Hepatitis B virus causes liver disease and up to 2 billion people have been in contact with the virus world wide. It can cause both acute and chronic disease. The routes for transmission are through blood, mother to infant at time of delivery and sexually. READ MORE

7. 10. Bayesian Cluster Analysis : Some Extensions to Non-standard Situations

   Author : Jessica Franzén; Daniel Thorburn; Jukka Corander; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cluster analysis; Clustering; Classification; Mixture model; Gaussian; Bayesian inference; MCMC; Gibbs sampler; Deviant group; Longitudinal; Missing data; Multiple imputation; Statistics; Statistik; Statistics; statistik;

   Abstract : The Bayesian approach to cluster analysis is presented. We assume that all data stem from a finite mixture model, where each component corresponds to one cluster and is given by a multivariate normal distribution with unknown mean and variance. READ MORE