• Identification of potential carcinogenic and chemopreventive effects of prescription drugs: A protocol for a Norwegian registry-based study 

      Kulle, Bettina; Støer, Nathalie Charlotte; Martinsen, Jan Ivar; Ursin, Giske; Weiderpass, Elisabete; Thoresen, G. Hege; Debernard, Karen A. Boldingh; Karlstad, Øystein; Pottegard, Anton; Friis, Søren (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-04-08)
      <i>Introduction</i> - Surveillance of unintended effects of pharmaceuticals (pharmacovigilance or drug safety) is crucial, as knowledge of rare or late side effects is limited at the time of the introduction of new medications into the market. Side effects of drugs may involve increased or decreased risk of cancer, but these typically appear after a long induction period. This fact, together with ...
    • Low-dose aspirin and risk of breast cancer: a Norwegian population-based cohort study of one million women 

      Løfling, Lukas; Støer, Nathalie Charlotte; Nafisi, Sara; Ursin, Giske; Hofvind, Solveig Sand-Hanssen; Botteri, Edoardo (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-06)
      Several studies evaluated the association between aspirin use and risk of breast cancer (BC), with inconsistent results. We identifed women aged≥50 years residing in Norway between 2004 and 2018, and linked data from nationwide registries; including the Cancer Registry of Norway, the Norwegian Prescription Database, and national health surveys. We used Cox regression models to estimate the ...
    • Menopausal hormone therapy and colorectal cancer: a linkage between nationwide registries in Norway. 

      Botteri, Edoardo; Støer, Nathalie Charlotte; Sakshaug, Solveig; Graff-Iversen, Sidsel; Vangen, Siri; Hofvind, Solveig; de Lange, Thomas; Bagnardi, Vincenzo; Ursin, Giske; Weiderpass, Elisabete (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-15)
      Objectives: <br> With the present study, we aimed to investigate the association between menopausal hormone therapy (HT) and risk of colorectal cancer (CRC). <br> Setting: <br> Cohort study based on the linkage of Norwegian population-based registries. <br> Participants: <br> We selected 466822 Norwegian women, aged 55–79, alive and residing in Norway as of 1 January 2004, and we followed ...
    • Psychological effect of cervical cancer screening when changing primary screening method from cytology to high-risk human papilloma virus testing 

      Andreassen, Trude; Hansen, Bo Terning; Engesæter, Birgit Øvstebø; Hashim, Dana; Støer, Nathalie Charlotte; Trope, Ameli; Moen, Kåre; Ursin, Giske; Weiderpass, Elisabete (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-12-14)
      From 2015, Norway has implemented high‐risk human papilloma virus (hrHPV) testing in primary screening for cervical cancer. Women aged 34–69 years, living in four counties, have been pseudo‐randomly assigned (1:1 randomization) to either hrHPV testing every 5 years (followed by cytology if hrHPV is positive), or cytology testing every 3 years (followed by hrHPV testing if low‐grade cytology is ...
    • 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 ...