Sökning: "time-varying covariates"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden time-varying covariates.

  1. 1. Multi-state and Time-varying Covariate Survival Models for Multiple Knee Contractures in People with Cerebral Palsy

    Kandidat-uppsats, Lunds universitet/Matematisk statistik

    Författare :Maiya Tebäck; [2023]
    Nyckelord :cerebral palsy; survival analysis; multi-state models; time-varying covariates; Mathematics and Statistics;

    Sammanfattning : Cerebral palsy is an umbrella term for a group of neurological disorders, affecting motor function, movement and posture. Contractures, restrictions in the range of motion of joints, are a common problem affecting people living with cerebral palsy. LÄS MER

  3. 2. Investigating the relationship between dementia and cognitive tests performance : do better scores on cognitive tests relate to a lower risk of developing dementia?

    Kandidat-uppsats, Umeå universitet/Statistik

    Författare :Emma Kwon; Markus Lindvall; [2022]
    Nyckelord :;

    Sammanfattning : In 2021, dementia was the seventh leading cause of death among all diseases in the world according to the World Health Organization (2021). Dementia is an overall medical term indicating deteriorated brain health associated with loss of memory, cognitive abnormality and difficulties in daily activities. There is no medical cure for dementia yet. LÄS MER

  4. 3. Academic performance and selective admission policies - The impact of weighted SweSAT admission on academic performance in engineering programmes in Sweden

    Magister-uppsats, Lunds universitet/Nationalekonomiska institutionen

    Författare :Jacob Wennberg; Martin Goude Rolfsmark; [2022]
    Nyckelord :Admission policy change; difference-in-differences; engineering programmes; SweSAT.; Business and Economics;

    Sammanfattning : During the enrolment year of 2019 and 2020, some Swedish universities were presented with the opportunity to participate in an admission policy trial. The universities could choose to weigh SweSAT scores based programme specific requisites. LÄS MER

  5. 4. Är kognitiva test relaterade till demens? : En utvidgning av Cox Proportional Hazards Model med tidsvarierande kovariat

    Kandidat-uppsats, Umeå universitet/Statistik

    Författare :Ellen Frejd; Jenny Sjödin; [2021]
    Nyckelord :;

    Sammanfattning : Syftet med uppsatsen är att undersöka samband mellan kognitiva test och insjuknande i demens. Demens är en samlingsdiagnos för sjukdomar som är kopplade till nedsatt kognitiv förmåga. Symptom inkluderar försämrad minnesfunktion och personlighetsförändringar. Data är insamlad av den longitudinella studien Betula vid Umeå universitet. LÄS MER

  7. 5. Bisphosphonates and the Risk of Fractures : Survival Analysis Using Patient Data from Swedish National Registers

    Kandidat-uppsats, Umeå universitet/Statistik

    Författare :Jonathan Bergman; [2016]
    Nyckelord :;

    Sammanfattning : Background Osteoporosis increases the risk of fractures. Bisphosphonates is a group of medications used to treat osteoporosis. LÄS MER