Sökning: "observational study"
Visar resultat 6 - 10 av 602 avhandlingar innehållade orden observational study.
6. Pharmacoepidemiologic Studies of Diabetes Mellitus - with special reference to - Glucose Control and Prognosis of Type 2 Diabetes
Sammanfattning : The efficacy and safety of antihyperglycaemic drugs have been evaluated in one American and one British randomized clinical trial, which have given contradictory results. The positive results of the latter may be more convincing as it included a greater number of patients and as its duration was longer. LÄS MER
7. Geotechnical risk management using the observational method
Sammanfattning : There have been many cost overruns, time delays and quality problems reported from geotechnical engineering projects around the world during recent decades. Many of the reported problems are associated with risks related to the geotechnical conditions. LÄS MER
8. Prolonged passive second stage of labour in nulliparous women : A multi perspective study
Sammanfattning : Aim: This study aimed to describe the prolonged passive second stage of labour in nulliparous women in relation to its prevalence, risk factors, birth outcomes, midwives’ intrapartum management, and women's birth experiences. Methods: Study I was a qualitative study in which 36 midwives participated in seven focus group discussions. LÄS MER
9. Methods for improving covariate balance in observational studies
Sammanfattning : This thesis contributes to the field of causal inference, where the main interest is to estimate the effect of a treatment on some outcome. At its core, causal inference is an exercise in controlling for imbalance (differences) in covariate distributions between the treated and the controls, as such imbalances otherwise can bias estimates of causal effects. LÄS MER
10. Observational Uncertainties in Water-Resources Modelling in Central America : Methods for Uncertainty Estimation and Model Evaluation
Sammanfattning : Knowledge about spatial and temporal variability of hydrological processes is central for sustainable water-resources management, and such knowledge is created from observational data. Hydrologic models are necessary for prediction for time periods and areas lacking data, but are affected by observational uncertainties. LÄS MER