Blar i forfatter "Gjesdal, Clara Gram"

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    • B Vitamins and Hip Fracture: Secondary Analyses and Extended Follow-Up of Two Large Randomized Controlled Trials 

      Garcia Lopez, Maria; Bønaa, Kaare; Ebbing, Marta; Eriksen, Erik Fink; Gjesdal, Clara Gram; Nygård, Ottar; Tell, Grethe S.; Ueland, Per Magne; Meyer, Haakon E (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-06-28)
      Elevated plasma homocysteine levels are associated with increased risk of fractures in observational studies. However, it is unsettled whether homocysteine-lowering treatment affects fracture risk. The aim of this study was to investigate the effect of an intervention with B vitamins on the risk of hip fracture in a secondary analysis of combined data from two large randomized controlled trials ...

    • Cohort profile: Norwegian Epidemiologic Osteoporosis Studies (NOREPOS) 

      Søgaard, Anne Johanne; Meyer, Haakon E; Emaus, Nina; Grimnes, Guri; Gjesdal, Clara Gram; Forsmo, Siri; Schei, Berit; Tell, Grethe Seppola (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-10-02)
      Aims: This paper describes the history, purpose, data collection and contributions in the research collaboration Norwegian Osteoporosis Epidemiologic Studies (NOREPOS). <br>Methods: NOREPOS encompasses almost 85,000 bone mineral density measurements within Cohort of Norway and data on almost 140,000 hip fractures in Norway 1994–2008. Included are anthropometric measurements, blood pressure, ...

    • Low Serum Levels of 25-Hydroxyvitamin D Predict Hip Fracture in the Elderly: A NOREPOS Study 

      Holvik, Kristin; Ahmed, Luai Awad; Forsmo, Siri; Gjesdal, Clara Gram; Grimnes, Guri; Samuelsen, Sven Ove; Schei, Berit; Blomhoff, Rune; Tell, Grethe S; Meyer, Haakon E (Journal article; Tidsskriftartikkel; Peer reviewed, 2013-08-01)
      <p><i>Background</i>: Despite considerable interest, the relationship between circulating 25-hydroxyvitamin D and the risk of hip fracture is not fully established.</p> <p><i>Objective</i>: The objective of the study was to study the association between serum 25-hydroxyvitamin D concentrations [s-25(OH)D] and the risk of hip fracture in Norway, a high-latitude country that has some of the highest ...

    • The Tromsø Study: Fit Futures: a study of Norwegian adolescents' lifestyle and bone health 

      Winther, Anne; Dennison, Elaine; Ahmed, Luai Awad; Furberg, Anne-Sofie; Grimnes, Guri; Jorde, Rolf; Gjesdal, Clara Gram; Emaus, Nina (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-06-04)
      Summary: Bone mass achievement predicts later fracture risk. This population-based study describes bone mineral density levels (BMD) and associated factors in Norwegian adolescents. Compared with international reference ranges, BMD levels appear higher and physical activity levels are positively associated with BMD. <p>Purpose: Norway has one of the highest reported incidences of osteoporotic ...

    • Urban–Rural Differences in Hip Fracture Mortality: A Nationwide NOREPOS Study 

      Solbakken, Siri Marie; Magnus, Jeanette H.; Meyer, Haakon E; Dahl, Cecilie; Stigum, Hein; Søgaard, Anne-Johanne; Holvik, Kristin; Tell, Grethe S.; Emaus, Nina; Forsmo, Siri; Gjesdal, Clara Gram; Schei, Berit; Vestergaard, Peter; Omsland, Tone Kristin (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-09)
      Higher hip fracture incidence in urban than in rural areas has been demonstrated, but urban–rural differences in posthip fracture mortality have been less investigated, and the results are disparate. Hence, the aims of the present register‐based cohort study were to examine possible urban–rural differences in short‐ and long‐term mortality in Norwegian hip fracture patients and their potential ...