Blar i forfatter "Johnsen, Stein Harald"

Viser treff 21-24 av 24

    • Screening for Alzheimer’s Disease: Cognitive Impairment in Self-Referred and Memory Clinic-Referred Patients 

      Kirsebom, Bjørn-Eivind; Espenes, Ragna; Waterloo, Knut; Hessen, Erik; Johnsen, Stein Harald; Bråthen, Geir; Aarsland, Dag; Fladby, Tormod (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-07)
      <p>Background</i>: Cognitive assessment is essential in tracking disease progression in AD. Presently, cohorts including preclinical at-risk participants are recruited by different means, which may bias cognitive and clinical features. We compared recruitment strategies to levels of cognitive functioning.<p> <p><i>Objective</i>: We investigate recruitment source biases in self-referred and ...

    • Temporal trends in incidence and case fatality of intracerebral hemorrhage. The Tromsø Study 1995-2012 

      Carlsson, Maria; Wilsgaard, Tom; Johnsen, Stein Harald; Vangen-Lønne, Anne Merete; Løchen, Maja-Lisa; Njølstad, Inger; Mathiesen, Ellisiv B. (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-08-16)
      <p>Background: The aim of this study was to explore temporal trends in incidence and case fatality rates of intracerebral hemorrhage (ICH) over the last two decades in a Norwegian municipality. <p>Methods: Incident cases of primary ICH were registered in the period from 1995 through 2012 in 32,530 par ticipants of the longitudinal population-based Tromsø Study. Poisson regression models were used ...

    • Trends in prevalence of ultrasound-assessed carotid atherosclerosis in a general population over time. The Tromsø Study 1994-2016 

      Wang-Iversen, Rosa Elisabeth Theresia; Eltoft, Agnethe; Johnsen, Stein Harald; Mathiesen, Ellisiv B. (Master thesis; Mastergradsoppgave, 2021-11-11)
      <p><i>Background:</i> During the past decades, there has been a shift in risk factor levels in many high-income countries, with decrease in smoking, blood pressure and cholesterol levels, while body mass index, obesity and diabetes increase. The diverging trends may have opposite effects on prevalence of atherosclerosis. We aimed to assess carotid plaque prevalence and the association with risk ...

    • Ultrasound imaging of carotid atherosclerosis in a normal population. The Tromsø Study 

      Johnsen, Stein Harald; Mathiesen, Ellisiv B. (Journal article; Tidsskriftartikkel, 2009)
      In the Tromsø study, we have successfully used high resolution ultrasonography for assessing atherosclerosis development in a general population. The method is well suited for large epidemiological surveys. Methodological problems could be overcome by using highly standardized protocols, pre-study training of sonographers and readers, and off-line computer-based batch reading of digitized images. ...