Blar i forfatter "Holtedahl, Knut Arne"

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    • Forty Years of Arctic Primary Care Research on the Early Diagnosis of Cancer 

      Holtedahl, Knut Arne (Chapter; Bokkapittel, 2021)
      Usually, before a patient with cancer can be treated in a hospital, a general practitioner (GP) must suspect the diagnosis and refer the patient. GPs often worry that they could have done better for some of their cancer patients. Had there been an unreasonable delay of diagnosis? In the arctic, rural/urban city of Tromsø, this question became the subject of several scientific articles. Symptoms was ...

    • General practitioners' participation in cancer treatment in Norway 

      Holtedahl, Knut Arne; Scheel, Benedicte; Johansen, May-Lill (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-23)
      <p><i>Introduction</i>: General practitioners (GPs) participate in a patient’s cancer care to different extents at different times, from prevention and diagnosis to treatment and end-of-life care. Traditionally, the GP has had a minor role in cancer treatment. However, oncological and surgical services frequently delegate limited cancer treatment tasks to GPs, especially in rural areas far from ...

    • A method of calculating diagnostic indexes for possible cancer symptoms in general practice 

      Holtedahl, Knut Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 1990)
      Most medical encounters start with the presentation of symptomns that lead to hypotheses about the diagnosis. It might be useful to know the probability of a disease when a symptom of it is presented in a consulation with a general practitioner, i.e., the positive predictive value (PPV) of a particular symptom in relation to a disease. A diagnostic index of this kind would need to be based ...

    • More diagnostic indexes from general practice for some important forms of cancer 

      Holtedahl, Knut Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 1990)
      A method of calculating positive predictive values (PPVs) and likelihood ralios (LRs) on the basis of Bayesian probabilities has been described previously. In the present article the method is applied to a sore which does not heal in relation to skin cancer, a lump in the breast in relation to female breast cancer, genital bleeding in relation to internal genital cancer in fernales and ...

    • Symptoms and signs of urogenital cancer in primary care 

      Holtedahl, Knut Arne; Borgquist, Lars; Donker, Gé A.; Buntinx, Frank; Weller, David; Campbell, Christine; Månsson, Jörgen; Hammersley, Victoria; Braaten, Tonje Bjørndal; Parajuli, Ranjan (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-26)
      Background - Urogenital cancers are common, accounting for approximately 20% of cancer incidence globally. Cancers belonging to the same organ system often present with similar symptoms, making initial management challenging. In this study, 511 cases of cancer were recorded after the date of consultation among 61,802 randomly selected patients presenting in primary care in six European countries: a ...