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2024
1 Engebretsen, Ingrid; Gilhus, Nils Erik; Kristiansen, Ivar Sønbø; Sæther, Erik Magnus; Lindberg-Schager, Ingrid; Arneberg, Fredrik; Bugge, Christoffer.
The epidemiology and societal costs of myasthenia gravis in Norway: A non-interventional study using national registry data. European Journal of Neurology 2024 s. -
HAUKELAND UiB UiO Untitled
 
2023
2 Husum, Yngvil Solheim; Bråten, Ragnhild Haugli; Sæther, Erik Magnus; Moe, Morten Carsten; Kristiansen, Ivar Sønbø; Jørstad, Øystein Kalsnes.
Intravitreal anti-vascular endothelial growth factor therapy for retinal diseases in Norway from 2011 to 2021: A combined registry and survey study. Acta Ophthalmologica 2023 s. 1-11
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3 Pedersen, Kine; Kristiansen, Ivar Sønbø; Sy, Stephen; Kim, Jane J.; Burger, Emily Annika.
Designing Guidelines for Those Who Do Not Follow Them: The Impact of Adherence Assumptions on Optimal Screening Guidelines. Value in Health 2023 s. -
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4 Røssell, Eeva-Liisa; Bo, Anne; Grønborg, Therese Koops; Kristiansen, Ivar Sønbø; Borgquist, Signe; Scherer, Laura D.; Støvring, Henrik.
Danish Women Want to Participate in a Hypothetical Breast Cancer Screening with Harms and No Reduction in Mortality: A Cross-Sectional Survey. Medical decision making 2023 s. -
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5 Østby, Jens Torup; Kristiansen, Ivar Sønbø.
Hvordan ta hensyn til helsetjenestens verdiskaping ved prioritering av helsetiltak?. Tidsskrift for Den norske legeforening 2023 ;Volum 143.(17) s. -
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2022
6 Engebretsen, Ingrid; Munkhaugen, John; Bugge, Christoffer; Halvorsen, Sigrun; Ødegaard, Kristina Malene; Støvring, Henrik; Kristiansen, Ivar Sønbø.
Gaps and discontinuation of statin treatment in Norway: potential for optimizing management of lipid lowering drugs. European Heart Journal Open (EHJ Open) 2022 ;Volum 2.(6)
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7 Nielsen, Jesper B.; Kristiansen, Ivar Sønbø; Thapa, Subash.
Prolongation of disease-free life: When is the benefit sufficient to warrant the effort of taking a preventive medicine?. Preventive Medicine 2022 ;Volum 154. s. -
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8 Syse, Aslak; Kristiansen, Ivar Sønbø.
Legers rolle i Nye metoder. Tidsskrift for Den norske legeforening 2022 ;Volum 142.(1) s. 1-3
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2021
9 Bugge, Christoffer; Brustugun, Odd Terje; Sæther, Erik Magnus; Kristiansen, Ivar Sønbø.
Phase- and gender-specific, lifetime, and future costs of cancer: A retrospective population-based registry study. Medicine 2021 ;Volum 100.(26) s. 1-8
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10 Bugge, Christoffer; Kaasa, Stein; Sæther, Erik Magnus; Melberg, Hans Olav; Kristiansen, Ivar Sønbø.
What are determinants of utilisation of pharmaceutical anticancer treatment during the last year of life in Norway? A retrospective registry study. BMJ Open 2021 ;Volum 11.(9) s. 1-7
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11 Bugge, Christoffer; Sæther, Erik Magnus; Brustugun, Odd; Kristiansen, Ivar Sønbø.
Societal cost of cancer in Norway –Results of taking a broader cost perspective. Health Policy 2021 s. -
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12 Bugge, Christoffer; Sæther, Erik Magnus; Kristiansen, Ivar Sønbø.
Men receive more end-of-life cancer hospital treatment than women: fact or fiction?. Acta Oncologica 2021 ;Volum 60.(8) s. 984-991
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13 Cyr, Pascale Renée; Pedersen, Kine; Iyer, Anita Lakshmi; Bundorf, Kate; Goldhaber-Fiebert, Jeremy; Gyrd-Hansen, Dorte; Kristiansen, Ivar Sønbø; Burger, Emily Annika.
Providing more balanced information on the harms and benefits of cervical cancer screening: A randomized survey among US and Norwegian women. Preventive Medicine Reports 2021
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14 Oteiza, Francisco; Løyland, Hanna Isabel; Bugge, Christoffer; Kristiansen, Ivar Sønbø; Støvring, Henrik.
Persistence of statin treatment – the impact of analytic method when estimating drug survival. Norsk Epidemiologi 2021 ;Volum 29.(1-2) s. 107-115
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2020
15 Kristiansen, Ivar Sønbø; Burger, Emily; De Blasio, Birgitte Freiesleben.
Covid-19: Simuleringsmodeller ved epidemier. Tidsskrift for Den norske legeforening 2020 ;Volum 140.(6)
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16 Kristiansen, Ivar Sønbø; Burger, Emily; De Blasio, Birgitte Freiesleben.
Covid-19: Simuleringsmodeller ved epidemier. Tidsskrift for Den norske legeforening 2020 ;Volum 140.(6) s. 1-6
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17 Kvamme, Maria Knoph; Lie, Elisabeth; Uhlig, Till; Moger, Tron Anders; Kvien, Tore Kristian; Kristiansen, Ivar Sønbø.
Erratum: Cost-effectiveness of TNF inhibitors vs synthetic disease-modifying antirheumatic drugs in patients with rheumatoid arthritis: A Markov model study based on two longitudinal observational studies (Rheumatology (2015 54 (1226-1235) DOI: 10.1093/rheumatology/keu460). Rheumatology 2020 ;Volum 59.(4) s. 917-
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18 Lousdal, Mette Lise; Lash, Timothy L.; Flanders, W Dana; Brookhart, M Alan; Kristiansen, Ivar Sønbø; Kalager, Mette; Støvring, Henrik.
Negative controls to detect uncontrolled confounding in observational studies of mammographic screening comparing participants and non-participants. International Journal of Epidemiology 2020 ;Volum 49.(3) s. 1032-1042
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19 Zahl, Per Henrik; Kristiansen, Ivar Sønbø.
Re: Stage-specific survival has improved for young breast cancer patients since 2000: but not equally?. Breast Cancer Research and Treatment 2020 ;Volum 185.(2) s. 527-528
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2019
20 Edwards, Christina Hansen; Tomba, Gianpaolo Scalia; Kristiansen, Ivar Sønbø; White, Richard Aubrey; De Blasio, Birgitte Freiesleben.
Evaluating costs and health consequences of sick leave strategies against pandemic and seasonal influenza in Norway using a dynamic model. BMJ Open 2019 ;Volum 9. s. -
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21 Hovland, Ragnar; Bremer, Sara; Frigaard, Christine; Henjum, Solveig; Faksvåg, Per Kristian; Sæther, Erik Magnus; Kristiansen, Ivar Sønbø.
Effect of a pharmacist-led intervention on adherence among patients with a first-time prescription for a cardiovascular medicine: a randomized controlled trial in Norwegian pharmacies. International Journal of Pharmacy Practice (IJPP) 2019
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22 Hylin, Hannah Douglass; Thrane, Helene; Pedersen, Kine; Kristiansen, Ivar Sønbø; Burger, Emily.
The healthcare costs of treating human papillomavirus-related cancers in Norway. BMC Cancer 2019 ;Volum 19.(1)
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23 Iyer, Anita Lakshmi; Bundorf, M. Kate; Gyrd-Hansen, Dorte; Goldhaber-Flebert, Jeremy D.; Cyr, Pascale-Renée; Kristiansen, Ivar Sønbø.
How does information on the harms and benefits of cervical cancer screening alter the intention to be screened?: a randomized survey of Norwegian women.. European Journal of Cancer Prevention 2019 ;Volum 28.(2) s. 87-95
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24 Kristiansen, Ivar Sønbø; Bråten, Ragnhild Haugli; Jørstad, Øystein Kalsnes; Moe, Morten Carsten; Sæther, Erik Magnus.
Intravitreal therapy for retinal diseases in Norway 2011-2015. Acta Ophthalmologica 2019 s. 1-7
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25 Røssell Johansen, Eeva-Liisa; Lousdal, Mette Lise; Vinther Skriver, Mette; Væth, Michael; Kristiansen, Ivar Sønbø; Støvring, Henrik.
Predicting Difference in Mean Survival Time from Reported Hazard Ratios for Cancer Patients. Medical decision making 2019 ;Volum 39.(3) s. 228-238
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26 Sengupta, Kaushik; Thygesen, Lau Caspar; Kristiansen, Ivar Sønbø; Bolin, Kristian; Pukkala, Eero; Emneus, Martha; Christensen, Lisa Bøge; Ersbøll, Annette Kjær.
Utilization of etoricoxib in dental patients in the Nordic countries: a population-based register study. Acta Odontologica Scandinavica 2019 ;Volum 77.(8) s. 584-591
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27 Wisløff, Torbjørn; Mundal, Liv; Retterstøl, Kjetil; Igland, Jannicke; Kristiansen, Ivar Sønbø.
Economic evaluation of lipid lowering with PCSK9 inhibitors in patients with familial hypercholesterolemia: Methodological aspects. Atherosclerosis 2019 ;Volum 287. s. 140-146
FHI UiO OUS UiB Untitled
 
2018
28 Bugge, Christoffer; Sæther, Erik Magnus; Pahle, Andreas; Halvorsen, Sigrun; Kristiansen, Ivar Sønbø.
Diagnosing heart failure with NT-proBNP point-of-care testing: lower costs and better outcomes. A decision analytic study. British Journal of General Practice 2018
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29 Inderhaug, Eivind; Schelp, Carl Henrik; Glambek, Inge; Kristiansen, Ivar Sønbø.
Cost-effectiveness analysis of five procedures for great saphenous vein reflux in a Norwegian healthcare setting or societal setting. American Journal of Sports Medicine 2018 ;Volum 6.(4) s. 826-831
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30 Korman, Max; Retterstøl, Kjetil; Kristiansen, Ivar Sønbø; Wisløff, Torbjørn.
Are PCSK9 Inhibitors Cost Effective?. PharmacoEconomics (Auckland) 2018 ;Volum 36.(9) s. 1031-1041
UiO OUS FHI Untitled
 
31 Kristiansen, Ivar Sønbø; Bugge, Christoffer.
Prioritering i pasienters siste leveår. Tidsskrift for Den norske legeforening 2018 ;Volum 138.(9) s. -
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32 Kristiansen, Ivar Sønbø; Bugge, Christoffer; Førde, Olav Helge.
Bidrar overdiagnostikk til høye melanomtall?. Tidsskrift for Den norske legeforening 2018 ;Volum 138.(11) s. 1007-1010
UiO HN UiT Untitled
 
33 Kristiansen, Ivar Sønbø; Bugge, Christoffer; Førde, Olav Helge.
Kristiansen og medarbeidere svarer :. Tidsskrift for Den norske legeforening 2018 ;Volum 138.(12) s. 1102-1103
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34 Lousdal, Mette Lise; Møller, Mette H.; Kristiansen, Ivar Sønbø; Kalager, Mette; Wisløff, Torbjørn; Støvring, Henrik.
The Screening Illustrator: separating the effects of lead-time and overdiagnosis in mammography screening. European Journal of Public Health 2018 ;Volum 28.(6) s. 1138-1142
FHI UiO OUS Untitled
 
35 Mundal, Liv; Igland, Jannicke; Veierød, Marit Bragelien; Holven, Kirsten Bjørklund; Ose, Leiv; Selmer, Randi; Wisløff, Torbjørn; Kristiansen, Ivar Sønbø; Tell, Grethe S.; Leren, Trond Paul; Retterstøl, Kjetil.
Impact of age on excess risk of coronary heart disease in patients with familial hypercholesterolaemia. Heart 2018 ;Volum 104. s. 1600-1607
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36 Møller, Mette; Lousdal, Mette Lise; Kristiansen, Ivar Sønbø; Støvring, Henrik.
Effect of organized mammography screening on breast cancer mortality: A population-based cohort study in Norway. International Journal of Cancer 2018 s. 1-10
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37 Pedersen, Kine; Burger, Emily; Nygård, Mari; Kristiansen, Ivar Sønbø; Kim, Jane J..
Adapting cervical cancer screening for women vaccinated against human papillomavirus infections: The value of stratifying guidelines. European Journal of Cancer 2018 ;Volum 91. s. 68-75
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38 Pedersen, Kine; Fogelberg, Sara; Thamsborg, Lise H.; Clements, Mark; Nygård, Mari; Kristiansen, Ivar Sønbø; Lynge, Elsebeth; Sparén, Pär; Kim, Jane J; Burger, Emily.
An overview of cervical cancer epidemiology and prevention in Scandinavia. Acta Obstetricia et Gynecologica Scandinavica 2018 ;Volum 97.(7) s. 795-807
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39 Stavem, Knut; Augestad, Liv Ariane; Kristiansen, Ivar Sønbø; Rand, Kim.
General population norms for the EQ-5D-3 L in Norway: comparison of postal and web surveys. Health and Quality of Life Outcomes 2018 ;Volum 16.(204) s. 1-10
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2017
40 Andreassen, A Elizabeth S; Jacobsen, Caroline M; De Blasio, Birgitte Freiesleben; White, Richard; Kristiansen, Ivar Sønbø; Elstrøm, Petter.
The impact of methicillin-resistant S. aureus on length of stay, readmissions and costs: a register based case-control study of patients hospitalized in Norway. Antimicrobial Resistance and Infection Control 2017 ;Volum 6. s. -
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41 Burger, Emily; Pedersen, Kine; Sy, Stephen; Kristiansen, Ivar Sønbø; Kim, Jane J.
Choosing wisely: a model-based analysis evaluating the trade-offs in cancer benefit and diagnostic referrals among alternative HPV testing strategies in Norway. British Journal of Cancer 2017 ;Volum 117.(6) s. 783-790
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42 Burger, Emily; Pedersen, Kine; Sy, Stephen; Kristiansen, Ivar Sønbø; Kim, Jane J..
Primary HPV-based Cervical Cancer Screening: Balancing Health Benefits Colposcopy Referrals. International Papillomavirus Conference; 2017-02-28 - 2017-03-04
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43 Kristiansen, Ivar Sønbø.
Verdiløs helsepolitikk. Tidsskrift for Den norske legeforening 2017 ;Volum 137.(16) s. 1156-1157
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44 Lousdal, Mette Lise; Kristiansen, Ivar Sønbø; Møller, Bjørn; Støvring, Henrik.
Predicting Mean Survival Time from Reported Median Survival Time for Cancer Patients. Medical decision making 2017 ;Volum 37.(4) s. 391-402
KREFTREG UiO Untitled
 
45 Pahle, Andreas; Sørli, Daniel; Kristiansen, Ivar Sønbø; Deraas, Trygve Sigvart; Halvorsen, Peder Andreas.
Practice variation in surgical procedures and IUD-insertions among general practitioners in Norway – a longitudinal study. BMC Family Practice 2017 ;Volum 18:7. s. -
UiT UiO HN Untitled
 
46 Pedersen, Kine; Sørbye, Sveinung Wergeland; Kristiansen, Ivar Sønbø; Burger, Emily.
Using novel biomarkers to triage young adult women with minor cervical lesions: a cost-effectiveness analysis. BJOG: An International Journal of Obstetrics and Gynaecology 2017 ;Volum 124.(3) s. 474-484
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2016
47 Augestad, Liv Ariane; Stavem, Knut; Kristiansen, Ivar Sønbø; Samuelsen, Carl Haakon; Rand-Hendriksen, Kim.
Influenced from the start: anchoring bias in time trade-off valuations. Quality of Life Research 2016 ;Volum 25.(9) s. 1-13
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48 Hagen, Gunhild; Wisløff, Torbjørn; Kristiansen, Ivar Sønbø.
Bør Tine rekruttere melkedrikkere?. Aftenposten (morgenutg. : trykt utg.) 2016
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49 Hagen, Gunhild; Wisløff, Torbjørn; Kristiansen, Ivar Sønbø.
The predicted lifetime costs and health consequences of calcium and vitamin D supplementation for fracture prevention—the impact of cardiovascular effects. Osteoporosis International 2016 ;Volum 27.(6) s. 2089-2098
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50 Lousdal, Mette L; Kristiansen, Ivar Sønbø; Møller, Bjørn; Støvring, Henrik.
Effect of organised mammography screening on stage-specific incidence in Norway: Population study. British Journal of Cancer 2016 ;Volum 114.(5) s. 590-596
UiO KREFTREG Untitled
 
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