Now showing items 1-18 of 18

    • Abdominal aortic aneurysms, or a relatively large diameter of non-aneurysmal aortas, increase total and cardiovascular mortality: the Tromsø study. 

      Forsdahl, Signe Helene; Solberg, Steinar; Singh, Kulbir; Jacobsen, Bjarne Koster (Journal article; Tidsskriftartikkel; Peer reviewed, 2010)
      Background: In a population-based study in Tromsø, Norway, the authors assessed whether an abdominal aortic aneurysm (AAA) or the maximal infrarenal aortic diameter in a non-aneurismal aorta influence total and cardiovascular disease (CVD) mortality. Methods: A total of 6640 men and women, aged 25–84 years, were included in a 10-year mortality follow-up: 345 subjects with a diagnosed AAA and ...
    • Active and passive smoking and the risk of myocardial infarction in 24,968 men and women during 11 year of follow-up: the Tromsø Study 

      Iversen, Birgitte; Jacobsen, Bjarne Koster; Løchen, Maja-Lisa (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Active smoking is a well-established risk factor for myocardial infarction, but less is known about the impact of passive smoking, and possible sex differences in risk related to passive smoking. We investigated active and passive smoking as risk factors for myocardial infarction in an 11-year follow-up of 11,762 men and 13,206 women included in the Tromsø Study. There were a total of 769 and 453 ...
    • Body mass index and mortality in elderly men and women: the Tromso and HUNT studies 

      Kvamme, Jan-Magnus; Holmen, Jostein; Wilsgaard, Tom; Florholmen, Jon; Midthjell, Kristian; Jacobsen, Bjarne Koster (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      The impact of body mass index (BMI; kg/m2) and waist circumference (WC) on mortality in elderly individuals is controversial and previous research has largely focused on obesity. With special attention to the lower BMI categories, associations between BMI and both total and cause-specific mortality were explored in 7604 men and 9107 women aged ≥65 years who participated in the Tromsø Study (1994–1995) ...
    • Body mass index at age 20 and subsequent childbearing: The Adventist Health Study-2. 

      Jacobsen, Bjarne Koster; Knutsen, Synnøve Fønnebø; Oda, Keiji; Fraser, Gary E. (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Background: Some epidemiological, clinical, and laboratory studies suggest that underweight and obesity impact fertility. Methods: This is cross-sectional study of 33,159 North American Adventist women, who were nulliparous at age 20 years and who, as a group, have a healthy lifestyle. Logistic regression analysis was used to assess how body mass index (BMI, kg/m2) at age 20 was related to never ...
    • Changes in body mass index and the prevalence of obesity during 1994–2008: repeated cross-sectional surveys and longitudinal analyses. The Tromsø Study 

      Jacobsen, Bjarne Koster; Aars, Nils Abel (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-06-12)
      Objectives: To determine the mean body mass index (BMI, kg/m2 ) and prevalence of low weight (BMI<20) and obesity (BMI≥30) in 3 population-based surveys, and to describe the longitudinal changes during 1994– 2008 in mean BMI, and the prevalence of low weight and obesity. Setting: A population study in Tromsø, Norway. Participants: A total of 29 688 different participants in 1 or more of 3 ...
    • Cohort profile: The Tromsø Study 

      Jacobsen, Bjarne Koster; Eggen, Anne Elise; Mathiesen, Ellisiv B.; Wilsgaard, Tom; Njølstad, Inger (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      The Tromsø Study was initiated in 1974 in an attempt to help combat the high mortality of cardiovascular diseases in Norway, that was particularly pronounced among middle-aged men. In the mid-1970s, Norwegian men had a 20% risk of dying of myocardial infarction (MI) before the age of 75 years. The situation in Northern Norway was even worse.1 The primary aim of the Tromsø Study was to determine ...
    • Hip fractures in a city in Northern Norway over 15 years : time trends, seasonal variation and mortality The Harstad Injury Prevention Study 

      Emaus, Nina; Olsen, Lena Ringstad; Ahmed, Luai A.; Balteskard, Lise; Jacobsen, Bjarne Koster; Magnus, Trine; Ytterstad, Børge (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Introduction The aim of the present population-based study was to describe age- and sex-specific incidence of hip fractures in a Northern Norwegian city, compare rates with the Norwegian capital Oslo, describe time trends in hip fracture incidence, place of injury, seasonal variation and compare mortality after hip fracture between women and men. Methods Data on hip fractures from 1994 to 2008 ...
    • Increasing mortality in schizophrenia: Are women at particular risk? A follow-up of 1111 patients admitted during 1980-2006 in Northern Norway 

      Høye, Anne; Jacobsen, Bjarne Koster; Hansen, Vidje (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      A study of mortality for all patients with schizophrenia admitted to the University Hospital of North Norway during 1980-2006 was performed, with a special focus on gender differences and changes in mortality during a period of transition from hospital-based to community-based care. A total of 1111 patients with schizophrenia were included, and the cohort was linked to the Causes of Death Register ...
    • Leisure time physical activity and risk of non-vertebral fracture in men and women aged 55 years and older : the Tromso Study 

      Morseth, Bente; Ahmed, Luai A.; Bjørnerem, Åshild; Emaus, Nina; Jacobsen, Bjarne Koster; Joakimsen, Ragnar Martin; Størmer, Jan; Wilsgaard, Tom; Jørgensen, Lone (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Our aim was to examine associations between leisure time physical activity and risk of non-vertebral fractures in men and women aged ≥55 years, with focus on the anatomical fracture location. Self-reported physical activity was registered in 3,450 men and 4,072 women aged 55–97 years at baseline in the Tromsø Study, Norway, in 1994–1995. Non-vertebral fractures were registered through December 31, ...
    • Obesity at age 20 and the risk of miscarriages, irregular periods and reported problems of becoming pregnant: the Adventist Health Study-2. 

      Jacobsen, Bjarne Koster; Knutsen, Synnøve Fønnebø; Oda, Keiji; Fraser, Gary E. (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      In a group of 46,000 North-American Adventist women aged 40 and above, we investigated the relationships between body mass index (BMI, kg/m2) at age 20 and the proportion of women who reported at least one miscarriage, periods with irregular menstruation or failing to become pregnant even if trying for more than one straight year. Approximately 31, 14 and 17 %, respectively, reported the three ...
    • Parity and total, ischemic heart disease and stroke mortality. The Adventist Health Study, 1976-1988 

      Jacobsen, Bjarne Koster; Knutsen, Synnøve Fønnebø; Oda, Keiji; Fraser, Gary E. (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      In a prospective study with information about life style and reproductive factors, we assessed the relationship between parity and total, ischemic heart disease, and stroke mortality. The large majority of the 19,688 California Seventh-day Adventist women included did not smoke or drink alcohol, 31 percent never ate meat and physical activity was relatively high. Cox proportional hazard analysis ...
    • Risk of malnutrition and health-related quality of life in community-living elderly men and women : the Tromsø study. 

      Kvamme, Jan-Magnus; Olsen, Jan Abel; Florholmen, Jon; Jacobsen, Bjarne Koster (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Purpose To explore the association between risk of malnutrition as well as current body mass index (BMI) and health-related quality of life (HRQoL) in elderly men and women from the general population. Methods In a cross-sectional population survey including 1,632 men and 1,654 women aged 65 to 87 years from the municipality of Tromsø, Norway, we assessed HRQoL by using the EuroQol (EQ-5D) ...
    • Risk of malnutrition and zinc deficiency in community-living elderly men and women: the Tromsø Study 

      Kvamme, Jan-Magnus; Grønli, Ole Kristian; Jacobsen, Bjarne Koster; Florholmen, Jon (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-11-06)
    • Risk of malnutrition is associated with mental health symptoms in community living elderly men and women: The Tromsø Study 

      Kvamme, Jan-Magnus; Grønli, Ole Kristian; Florholmen, Jon; Jacobsen, Bjarne Koster (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Little research has been done on the relationship between malnutrition and mental health in community living elderly individuals. In the present study, we aimed to assess the associations between mental health (particularly anxiety and depression) and both the risk of malnutrition and body mass index (BMI, kg/m2) in a large sample of elderly men and women from Tromsø, Norway. In a cross-sectional ...
    • Serum osteoprotegerin levels are related to height loss : the Tromsø Study 

      Jørgensen, Lone; Hansen, John-Bjarne; Brox, Jan; Mathiesen, Ellisiv B.; Vik, Anders; Jacobsen, Bjarne Koster (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Severe loss of body height is often a consequence of osteoporotic vertebral fractures. Osteoprotegerin (OPG) and receptor activator of nuclear factor-kB ligand (RANKL) are cytokines essential for the regulation of bone resorption. The aim of this study was to assess the relationship between the OPG/RANKL system and height loss. A total of 4,435 inhabitants from the municipality of Tromsø, ...
    • Sex differences in mortality of admitted patients with personality disorders in North Norway - a prospective register study. 

      Høye, Anne; Jacobsen, Bjarne Koster; Hansen, Vidje (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      It is well established that patients with serious mental disorders have higher mortality than the general population, yet there are few studies on mortality of both natural and unnatural causes in patients with personality disorders. The aim of this study was to investigate the mortality of in-patients with personality disorder diagnosis in a 27-year follow-up cohort in North Norway, with a special ...
    • Soy isoflavone intake and the likelihood of ever becoming a mother: the Adventist Health Study-2 

      Jacobsen, Bjarne Koster; Jaceldo-Siegl, Karen; Knutsen, Synnøve Fønnebø; Fan, Jing; Oda, Keiji; Fraser, Gary E. (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
      Objectives: As little is known about the possible relationship between the intake of phytoestrogens and female fertility, we investigated the relationship between soy isoflavone intake and the risk of nulliparity and nulligravidity. Methods: A cross-sectional study of 11,688 North American Adventist women aged 30–50 years old with data regarding childbearing. These women were, as a group, characterized ...
    • The use of self-administered questionaires about food habits. 

      Jacobsen, Bjarne Koster (Doctoral thesis; Doktorgradsavhandling, 1988)