Browsing Institutt for helse og samfunn by Author "Grotmol, Tom"

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  • A lean additive frailty model: With an application to clustering of melanoma in Norwegian families 
    Brathovde, Mari; Moger, Tron Anders; Aalen, Odd O.; Grotmol, Tom; Veierød, Marit Bragelien; Valberg, Morten (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Additive frailty models are used to model correlated survival data. However, the complexity of the models increases with cluster size to the extent that practical usage becomes increasingly challenging. We present a ...
  • Hyperemesis gravidarum and long-term mortality: a population-based cohort study 
    Fossum, Stine; Vikanes, Åse Vigdis; Næss, Øyvind; Vos, Linda; Grotmol, Tom; Halvorsen, Sigrun (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
    Objective To investigate whether exposure to hyperemesis gravidarum (HG) is associated with increased maternal long-term mortality. Results Of 999 161 women with singleton births, 13 397 (1.3%) experienced HG. During a ...