Blar i forfatter Det helsevitenskapelige fakultet "Busund, Marit Katinka"

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    • Progestin-only and combined oral contraceptives and receptor-defined premenopausal breast cancer risk: The Norwegian Women and Cancer Study 

      Busund, Marit Katinka; Stensland-Bugge, Nora; Braaten, Tonje; Waaseth, Marit; Rylander, Charlotta; Lund, Eiliv (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-01-19)
      Receptor-defined subtypes of breast cancer represent distinct cancer types and have differences in risk factors. Whether the two main hormonal forms of oral contraceptives (OCs); i.e. progestin-only (POC) and combined oral contraceptives (COC), are differentially associated with these subtypes are not well known. The aim of our study was to assess the effect of POC and COC use on hormone receptor-defined ...

    • Reproductive factors and risk of melanoma: a population-based cohort study 

      Støer, Nathalie Charlotte; Botteri, Edoardo; Ghiasvand, Reza; Busund, Marit Katinka; Vangen, Siri; Lund, Eiliv; Veierød, Marit Bragelien; Weiderpass, Elisabete (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-02-12)
      <i>Background</i> - The association between reproductive factors and risk of cutaneous melanoma (CM) is unclear. We investigated this issue in the Norwegian Women and Cancer cohort study.<p> <p><i>Objectives</i> - To examine the association between the reproductive factors age at menarche, menstrual cycle length, parity, age at first and last birth, menopausal status, breastfeeding duration and ...

    • Trajectories of body mass index in adulthood and risk of subtypes of postmenopausal breast cancer 

      Busund, Marit Katinka; Ursin, Giske; Lund, Eiliv; Wilsgaard, Tom; Rylander, Karin Charlotta Maria (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-28)
      Background - Body fatness is a dynamic exposure throughout life. To provide more insight into the association between body mass index (BMI) and postmenopausal breast cancer, we aimed to examine the age at onset, duration, intensity, and trajectories of body fatness in adulthood in relation to risk of breast cancer subtypes.<p> <p>Methods - Based on self-reported anthropometry in the prospective ...