Blar i forfatter "Gran, Jon Michael"

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    • Association of physical activity with overall mortality among long-term testicular cancer survivors: A longitudinal study 

      Thorsen, Lene; Courneya, Kerry S.; Steene-Johannessen, Jostein; Gran, Jon Michael; Haugnes, Hege Sagstuen; Negaard, Helene Francisca Stigter; Kiserud, Cecilie E.; Fosså, Sophie Dorothea (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-19)
      Physical activity (PA) has been associated with reduced mortality among cancer survivors, but no study has focused on testicular cancer survivors (TCSs). We aimed to investigate the association of PA measured twice during survivorship with overall mortality in TCSs. TCSs treated during 1980 to 1994 participated in a nationwide longitudinal survey between 1998 to 2002 (S1: n = 1392) and 2007 to 2009 ...

    • Global test for high-dimensional mediation: Testing groups of potential mediators 

      Djordjilovic, Vera; Page, Christian Magnus; Gran, Jon Michael; Nøst, Therese Haugdahl; Sandanger, Torkjel M; Veierød, Marit Bragelien; Thoresen, Magne (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-09)
      We address the problem of testing whether a possibly high‐dimensional vector may act as a mediator between some exposure variable and the outcome of interest. We propose a global test for mediation, which combines a global test with the intersection‐union principle. We discuss theoretical properties of our approach and conduct simulation studies that demonstrate that it performs equally well or ...