Sökning: "marginal hazard ratio"

Hittade 4 avhandlingar innehållade orden marginal hazard ratio.

  1. 1. Estimation of hazard ratios from observational data with applications related to stroke

    Författare :Guilherme Barros; Jenny Häggström; Marie Eriksson; Daniel Nevo; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; survival analysis; causal inference; hazard ratios; marginal hazard ratio; stroke; balancing; Statistics; statistik;

    Sammanfattning : The objective of this thesis is to examine some challenges that may emerge when conducting time-to-event studies based on observational data. Time-to-event (also called survival) is a setting that involves analyzing how different factors may influence the length of time until an individual experiences the event of interest. LÄS MER

  3. 2. Complicated peptic ulcer disease : prevention and treatment

    Författare :Emma Sverdén; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Peptic ulcer is a common disease worldwide and its complications can cause serious clinical problems. While the incidence of uncomplicated peptic ulcer disease is decreasing, the incidence of more complex ulcer disease is not. The most common complication is bleeding. Endoscopic intervention achieves haemostasis in most patients. LÄS MER

  4. 3. Essays on Economics of Natural Resource Management and Experiments

    Författare :Wisdom Akpalu; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Optimal taxation; Efficiency; Externality; Dynamic analysis; Firm behaviour; Fishery; Regulatory compliance; Common pool resources; Experiment; Ostracism; Contribution norm; Public goods; Ghana;

    Sammanfattning : This thesis has five self-contained essays. The titles and the abstracts of the various essays are as follows. Paper 1: Natural Resource use Conflict: Gold Mining in Tropical Rainforest in Ghana: Gold is frequently mined in rainforests that can provide either gold or forest benefits, but not both. LÄS MER

  5. 4. Survival and treatment related toxicity in classical Hodgkin lymphoma

    Författare :Ingemar Lagerlöf; Daniel Molin; Graham Collins; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Hodgkin lymphoma; combined modality; late effects; treatment toxicity; radiotherapy; chemotherapy; long-term; follow-up; relative survival; years of life lost; excess mortality; excess morbidity; Oncology; Onkologi;

    Sammanfattning : Treating early-stage classical Hodgkin lymphoma (cHL) by adding radiotherapy to chemotherapy gives better disease control compared to chemotherapy only. With a low median age at diagnosis, the risk from cHL needs to be weighed against the risk of treatment toxicity. LÄS MER