Search for dissertations about: "observational study."

Showing result 11 - 15 of 579 swedish dissertations containing the words observational study..

2. 11. Causal Inference in Observational Studies and Experiments: Theory and Applications

   Author : Mårten Schultzberg; Per Johansson; Mattias Nordin; Peng Ding; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; experimental design; identification; observational studies; rerandomization; Statistics; Statistik;

   Abstract : This thesis consists of six papers that study the design of observational studies and experiments.Paper I proposes strategies to consistently estimate the average treatment effect of the treated using information derived from a large number of pre-treatment measurements of the outcome. READ MORE

4. 12. The photo-diary and follow-up appointment on the ICU: Giving back the time to patients and relatives. : A descriptive and interventional study

   Author : Carl G Bäckman; Sten Walther; Folke Sjöberg; Lotti Orwelius; Lars Berggren; Linköpings universitet; []
   Keywords : MEDICINE; MEDICIN;

   Abstract : Background: Patients on the ICU often spend a great deal of their time either unconscious or heavily sedated. When they return from the zone between life and death they are often in a state of confusion where dreams and delusions are intertwined with reality and it is not always easy to distinguish them apart. READ MORE

5. 13. How to create and analyze a Heart Failure Registry with emphasis on Anemia and Quality of Life

   Author : Åsa Jonsson; Ulf Dahlström; Magnus Edner; Lars Lund; Bertil lindahl; Linköpings universitet; []
   Keywords : 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; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Heart failure; reduced ejection fraction; mid-­‐range ejection fraction; preserved ejection fraction; anemia; Health-­‐related quality of life; observational study; outcomes;

   Abstract : Background and aimsHeart failure (HF) is a major cause of serious morbidity and death in the population and one of the leading medical causes of hospitalization among people older than 60 years. The aim of this thesis was to describe how to create and how to analyze a Heart Failure Registry with emphasis on Anemia and Quality of Life. READ MORE

6. 14. Some Aspects of Propensity Score-based Estimators for Causal Inference

   Author : Ronnie Pingel; Johan Lyhagen; Theis Lange; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; correlation; treatment effect; inverse probability weighting; local linear estimator; matching; multicollinearity; observational study.; Statistics; Statistik;

   Abstract : This thesis consists of four papers that are related to commonly used propensity score-based estimators for average causal effects.The first paper starts with the observation that researchers often have access to data containing lots of covariates that are correlated. READ MORE

7. 15. Measure for measure. Outcome assessment of arthritis treatment in clinical practice

   Author : Anders Gülfe; Reumatologi och molekylär skelettbiologi; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TNF blockade; rheumatoid arthritis; utility; treatment continuation; agreement; health related quality of life; Outcome; response; psoriatic arthritis; spondyloarthritis; disease activity; observational study;

   Abstract : Objective: To investigate (i) the performance and agreement between various activity indices and response criteria in TNF-blockade of RA; (ii) the predictive ability of different response criteria and disease activity states regarding continuation of anti-TNF treatment of RA; (iii) Euro-QoL-5-dimensions utility development during TNF blockade of RA, PsA and SpA. Also, (iv) to develop a simple, utility-based outcome measure, the number needed to treat per quality adjusted life year gained (NNQ) and apply it in RA, PsA and SpA patients on anti-TNF treatment. READ MORE