Blar i forfatter "Halvorsen, Peder Andreas"

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    • Age, income and sleep duration were associated with outcomes in children participating in weight management 

      Kjetså, Ingrid; Halvorsen, Peder Andreas; Kokkvoll, Ane Sofie (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-23)
      Aim To explore associations between baseline factors and weight-related outcomes among participants enrolled in a paediatric obesity trial. Methods We included children aged 6–12 years participating in a 2-year multidisciplinary family programme who attended a postintervention follow-up 36 months from baseline (n = 62). Outcome measures were change in body mass index standard deviation score (BMI ...

    • Associations between patients’ risk attitude and their adherence to statin treatment – a population based questionnaire and register study 

      Barfoed, Benedicte Lind; Paulsen, Maja Skov; Christensen, Palle Mark; Halvorsen, Peder Andreas; Kjær, Trine; Larsen, Mogens Lytken; Larsen, Pia Veldt; Nielsen, Jesper Bo; Søndergaard, Jens; Jarbøl, Dorte Ejg (Journal article; Tidsskriftartikkel, 2016-09-03)
      <b>Background:</b> Poor adherence to medical treatment may have considerable consequences for the patients’ health and for healthcare costs to society. The need to understand the determinants for poor adherence has motivated several studies on socio-demographics and comorbidity. Few studies focus on the association between risk attitude and adherence. The aim of the present study was to estimate ...

    • Context and general practitioner decision-making - a scoping review of contextual influence on antibiotic prescribing 

      Al-Azzawi, Resha; Halvorsen, Peder Andreas; Risør, Torsten (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-15)
      Background - How contextual factors may influence GP decisions in real life practice is poorly understood. The authors have undertaken a scoping review of antibiotic prescribing in primary care, with a focus on the interaction between context and GP decision-making, and what it means for the decisions made.<p> <p>Method - The authors searched Medline, Embase and Cinahl databases for English ...

    • Continuity of GP care is associated with lower use of complementary and alternative medical providers: a population-based cross-sectional survey 

      Hansen, Anne Helen; Kristoffersen, Agnete Egilsdatter; Lian, Olaug S; Halvorsen, Peder Andreas (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)

    • Criterion validity of the Saltin-Grimby Physical Activity Level Scale in adolescents. The Fit Futures Study 

      Beldo, Sigurd Klemetsen; Aars, Nils Abel; Christoffersen, Tore; Furberg, Anne-Sofie; Halvorsen, Peder Andreas; Hansen, Bjørge Hermann; Horsch, Alexander; Sagelv, Edvard Hamnvik; Syed, Shaheen; Morseth, Bente (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-01)
      Background<p> <p>The Saltin-Grimby Physical Activity Level Scale (SGPALS) is commonly used to measure physical activity (PA) in population studies, but its validity in adolescents is unknown. This study aimed to assess the criterion validity of the SGPALS against accelerometry in a large sample of adolescents. A secondary aim was to examine the validity across strata of sex, body mass index (BMI), ...

    • Decisions on sick leave certifications for acute airways infections based on vignettes: A cross-sectional survey of GPs in Norway and Poland 

      Halvorsen, Peder Andreas; Wennevold, Katrine; Fleten, Nils; Muras, Magdalena; Kowalczyk, Anna; Godycki-Cwirko, Maciek; Melbye, Hasse (Journal article; Tidsskriftartikkel; Peer reviewed, 2011-02-17)
      Objective. To explore whether frequency and duration of sick-leave certifi cation for acute airway infections differ between general practitioners (GPs) in Poland and Norway. Design . Cross-sectional survey. Setting. Educational courses for GPs. Intervention. We used a questionnaire with four vignettes presenting patients with symptoms consistent with pneumonia, sinusitis, common cold, and ...

    • Decisions on statin therapy by patients’ opinions about survival gains: cross sectional survey of general practitioners 

      Halvorsen, Peder Andreas; Aasland, Olaf Gjerløw; Kristiansen, Ivar Sønbø (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-07-03)
      Background: Guidelines for primary prevention of cardiovascular disease provide little guidance on how patients’ preferences should be taken into account. We wanted to explore whether general practitioners (GPs) are sensitive to patient preferences regarding survival gains from statin therapy. Methods: In a cross sectional, online survey 3,270 Norwegian GPs were presented with a 55 year old patient ...

    • Diagnostic accuracy of heart auscultation for detecting valve disease: a systematic review 

      Davidsen, Anne Herefoss; Andersen, Stian; Halvorsen, Peder Andreas; Schirmer, Henrik; Reierth, Eirik; Melbye, Hasse (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-24)
      Objective The objective of this study was to determine the diagnostic accuracy in detecting valvular heart disease (VHD) by heart auscultation, performed by medical doctors.<p> <p>Design/methods A systematic literature search for diagnostic studies comparing heart auscultation to echocardiography or angiography, to evaluate VHD in adults, was performed in MEDLINE (1947–November 2021) and ...

    • The ecology of medical care in Norway: wide use of general practitioners may not necessarily keep patients out of hospitals 

      Hansen, Anne Helen; Halvorsen, Peder Andreas; Førde, Olav Helge (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Background. Our aim was to investigate the pattern of self reported symptoms and utilisation of health care services in Norway.<p> <p>Design and Methods. With data from the cross-sectional Tromsø Study (2007-8), we estimated population proportions reporting symptoms and use of seven different health services. By logistic regression we estimated differences according to age and gender. <p>Results. ...

    • Explaining risk reductions in medical practice : prevention or postponement? 

      Halvorsen, Peder Andreas (Doctoral thesis; Doktorgradsavhandling, 2008)
      Diagnosis, treatment and follow up of risk conditions such as hypercholesterolemia and osteoporosis are prominent tasks of contemporary medical practice. The aim is to prevent, or at least postpone the onset of adverse health outcomes such as angina pectoris, heart attacks, strokes and fractures. Dealing with risks involves decision making under uncertainty. For patients to be able to engage ...

    • General practitioners’ altered preferences for private practice vs. salaried positions: a consequence of proposed policy regulations? 

      Holte, Jon Helgheim; Abelsen, Birgit; Halvorsen, Peder Andreas; Olsen, Jan Abel (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-03-25)
      Background: General practitioners (GPs) in most high-income countries have a history of being independent private providers with much autonomy. While GPs remain private providers, their autonomous position appears to be challenged by increased policy regulations. This paper examines the extent to which GPs’ preferences for private practice vs. salaried contracts changed in a period where a new ...

    • GP decisions to participate in emergencies: a randomised vignette study 

      Hjortdahl, Magnus; Gyrd-Hansen, Dorte; Halvorsen, Peder Andreas (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-01-19)
      <i>Background</i> - GPs use their judgement on whether to participate in emergencies; however, little is known about how GPs make their decisions on emergency participation.<p> <p><i>Aim</i> - To test whether GPs' participation in emergencies is associated with cause of symptoms, distance to the patient, other patients waiting, and out-of-hours (OOH) clinic characteristics.<p> <p><i>Design & ...

    • GPs' Perceptions of Cardiovascular Risk and Views on Patient Compliance: A Qualitative Interview Study. 

      Barfoed, Benedicte Lind; Jarbøl, Dorte Ejg; Paulsen, Maja Skov; Christensen, Palle Mark; Halvorsen, Peder Andreas; Nielsen, Jesper Bo; Søndergaard, Jens (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-10-08)
      Objective. General practitioners’ (GPs’) perception of risk is a cornerstone of preventive care. The aims of this interview study were to explore GPs’ professional and personal attitudes and experiences regarding treatment with lipid-lowering drugs and their views on patient compliance. Methods. The material was drawn from semistructured qualitative interviews. We sampled GPs purposively from ten ...

    • How do general practitioners implement decision-making regarding COPD patients with exacerbations? An international focus group study 

      Laue, Johanna; Melbye, Hasse; Halvorsen, Peder Andreas; Andreeva, Elena; Godycki-Cwirko, Maciek; Wollny, Anja; Francis, Nick; Spigt, Mark; Kung, Kenny; Risør, Mette Bech (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-12-08)
      <b>Purpose:</b> To explore the decision-making of general practitioners (GPs) concerning treatment with antibiotics and/or oral corticosteroids and hospitalization for COPD patients with exacerbations.<br> <b>Methods:</b> Thematic analysis of seven focus groups with 53 GPs from urban and rural areas in Norway, Germany, Wales, Poland, Russia, the Netherlands, and Hong Kong.<br> <b>Results:</b> ...

    • International perception of lung sounds: a comparison of classification across some European borders 

      Aviles Solis, Juan Carlos; Vanbelle, Sophie; Halvorsen, Peder Andreas; Francis, Nick; Cals, Jochem W L; Andreeva, Elena A; Marques, Alda; Piirila, Paivi; Pasterkamp, Hans; Melbye, Hasse (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-12-18)
      Introduction: Lung auscultation is helpful in the diagnosis of lung and heart diseases; however, the diagnostic value of lung sounds may be questioned due to interobserver variation. This situation may also impair clinical research in this area to generate evidence-based knowledge about the role that chest auscultation has in a modern clinical setting. The recording and visual display of lung sounds ...

    • Leadership practice as interaction in primary care emergency team training 

      Brandstorp, Helen; Kirkengen, Anna Luise; Sterud, Birgitte; Haugland, Bjørgun; Halvorsen, Peder Andreas (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-03)
      The present study, framed as critical action research, aimed at contributing to the improvement of training emergency teams in primary care. The first author was a participating observer in local simulation sessions performed by 10 different teams. Leadership practice as interaction was analysed in three types of communicative spaces: in the review and debriefing sessions; in the author group; and ...

    • The Norwegian PraksisNett: a nationwide practice-based research network with a novel IT infrastructure 

      Kristoffersen, Espen Saxhaug; Bjorvatn, Bjørn; Halvorsen, Peder Andreas; Nilsen, Stein; Fossum, Guro Haugen; Fors, Egil Andreas; Jørgensen, Pål; Øxnevad-Gundersen, Berit; Gjelstad, Svein; Bellika, Johan Gustav; Straand, Jørund; Rørtveit, Guri (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-13)
      Clinical research in primary care is relatively scarce. Practice-based research networks (PBRNs) are research infrastructures to overcome hurdles associated with conducting studies in primary care. In Norway, almost all 5.4 million inhabitants have access to a general practitioner (GP) through a patient-list system. This gives opportunity for a PBRN with reliable information about the general ...

    • Practice variation in surgical procedures and IUD-insertions among general practitioners in Norway – a longitudinal study 

      Pahle, Andreas; Sørli, Daniel; Kristiansen, Ivar Sønbø; Deraas, Trygve Sigvart; Halvorsen, Peder Andreas (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-01-21)
      Background: Studies of Primary Health Care (PHC) reveal considerable practice variations in terms of the range of services provided. In Norway, general practitioners (GPs) are traditionally expected to perform IUD-insertions and several surgical procedures as a part of comprehensive PHC. We aimed to investigate variation in the provision of surgical procedures and IUD-insertions across GPs and ...

    • Prevalence of accelerometer-measured physical activity in adolescents in Fit Futures – part of the Tromsø Study 

      Beldo, Sigurd; Morseth, Bente; Christoffersen, Tore; Halvorsen, Peder Andreas; Hansen, Bjørge Hermann; Furberg, Anne-Sofie; Ekelund, Ulf; Horsch, Alexander (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-17)
      <i>Background</i> - Previous studies show large variations in physical activity (PA) levels among adolescents. However, the number of studies is limited and even fewer studies have assessed PA in adolescents by accelerometer devices. This study aimed to describe accelerometer-measured PA levels in adolescents in a population-based cohort in Northern Norway.<p> <p><i>Methods</i> - In 611 students ...

    • Primary care emergency team training in situ means learning in real context 

      Brandstorp, Helen; Halvorsen, Peder Andreas; Sterud, Birgitte; Haugland, Bjørgun; Kirkengen, Anna Luise (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-07-21)
      <b>Objective:</b> The purpose of our study was to explore the local learning processes and to improve in situ team training in the primary care emergency teams with a focus on interaction.<br> <b>Design, setting and subjects:</b> As participating observers, we investigated locally organised trainings of teams constituted ad hoc, involving nurses, paramedics and general practitioners, in rural Norway. ...