Ivar Sønbø Kristiansen

Image of Ivar Sønbø Kristiansen
Norwegian version of this page
Phone +47-22845038
Mobile phone +47-93222388
Username
Visiting address Forskningsveien 3A Harald Schjelderups hus 0373 OSLO

Academic interests

  • Economic evaluation of health care programmes
  • Modeling of chronic diseases
  • Risk communication

Courses taught

  • HMM4401: Health and Medicine
  • HMM4301: Optimal allocation of health care resources and economic evaluation of health care technologies
  • HØKON4102: Cost-effectiveness analysis (in Norwegian)
  • HME4301: Advanced course in economic evaluation of health care programmes
  • Various other teaching and lecturing activities

Background

  • PhD, University of Tromsø, Norway, 1996
  • Master of Public Health, Harvard University, 1986
  • Board certified specialist Community Medicine, 1985
  • MD University of Oslo, 1966
  • High School Exam, Drammen, Norway 1966

Awards

Positions held

  • Professor at Department of Health Management and Health Economics, University of Oslo, Norway, 2005-
  • Senior researcher, The Norwegian Knowledge Centre for the Health Services, 2000-2005
  • Senior researcher, Institute of Public Health, University of Southern Denmark at Odense, 1997-2009
  • Senior researcher, the Norwegian Institute of Public Health, 1995-1997
  • Assistant professor, Institute of Community Medicine, University of Tromsø, Norway, 1987-94
  • Deputy County Medical Officer, Troms County, Norway, 1983-87
  • Community medical officer and general practitioner, Kværfjord municipality, 1978-83 and Aure municipality, 1974-78

Partners

  • Department of Biostatistics, University of Århus, Denmark
  • Institute of Public Health, University of Southern Denmark at Odense
  • Epidemiology & Radiology of the Erasmus University Medical Center in Rotterdam, the Netherlands
  • Department of Health Policy and Management, Harvard School of Public Health
  • Department of Primary Care & Public Health, Cardiff University
  • Unit of Public Health, University of Glasgow

Publications

  • Pahle, Andreas; Sørli, Daniel; Kristiansen, Ivar Sønbø; Deraas, Trygve Sigvart & Halvorsen, Peder Andreas (2017). Practice variation in surgical procedures and IUD-insertions among general practitioners in Norway – a longitudinal study. BMC Family Practice.  ISSN 1471-2296.  18(1) . doi: 10.1186/s12875-017-0581-9
  • Augestad, Liv Ariane; Stavem, Knut; Kristiansen, Ivar Sønbø; Samuelsen, Carl Haakon & Rand-Hendriksen, Kim (2016). Influenced from the start: anchoring bias in time trade-off valuations. Quality of Life Research.  ISSN 0962-9343.  25(9), s 1- 13 . doi: 10.1007/s11136-016-1266-x
  • Hagen, Gunhild; Wisløff, Torbjørn & Kristiansen, Ivar Sønbø (2016). The predicted lifetime costs and health consequences of calcium and vitamin D supplementation for fracture prevention—the impact of cardiovascular effects. Osteoporosis International.  ISSN 0937-941X.  27(6), s 2089- 2098 . doi: 10.1007/s00198-016-3495-9
  • Lousdal, Mette L; Kristiansen, Ivar Sønbø; Møller, Bjørn & Støvring, Henrik (2016). Effect of organised mammography screening on stage-specific incidence in Norway: Population study. British Journal of Cancer.  ISSN 0007-0920.  114(5), s 590- 596 . doi: 10.1038/bjc.2016.8
  • Møller, MH; Kristiansen, Ivar Sønbø; Beisland, Christian; Rørvik, Jarle & Støvring, H (2016). Trends in stage-specific incidence of prostate cancer in Norway, 1980–2010: a population-based study. BJU International.  ISSN 1464-4096.  118(4), s 547- 555 . doi: 10.1111/bju.13364
  • Pedersen, Kine; Burger, Emily; Sy, Stephen; Kristiansen, Ivar Sønbø & Kim, Jane J. (2016). Cost-effective management of women with minor cervical lesions: Revisiting the application of HPV DNA testing.. Gynecologic Oncology.  ISSN 0090-8258.  143(2), s 326- 333 . doi: 10.1016/j.ygyno.2016.08.231
  • Pedersen, Kine; Sørbye, Sveinung Wergeland; Kristiansen, Ivar Sønbø & Burger, Emily (2016). Using novel biomarkers to triage young adult women with minor cervical lesions: A cost-effectiveness analysis. BJOG: an International Journal of Obstetrics and Gynaecology.  ISSN 1470-0328. . doi: 10.1111/1471-0528.14135
  • Shin, Minkyung; Valcarcel Salamanca, Beatriz; Kristiansen, Ivar Sønbø & Flem, Elmira (2016). Healthcare Costs of Rotavirus and Other Types of Gastroenteritis in Children in Norway. The Pediatric Infectious Disease Journal.  ISSN 0891-3668.  35(4), s e97- e101 . doi: 10.1097/INF.0000000000001026
  • Burger, Emily; Sy, Stephen; Nygård, Mari; Kristiansen, Ivar Sønbø & Kim, Jane J (2015). Too late to vaccinate? The incremental benefits and cost-effectiveness of a delayed catch-up program using the 4-valent human papillomavirus vaccine in Norway. Journal of Infectious Diseases.  ISSN 0022-1899.  211(2), s 206- 215 . doi: 10.1093/infdis/jiu413
  • Halvorsen, Peder Andreas; Aasland, Olaf Gjerløw & Kristiansen, Ivar Sønbø (2015). Decisions on statin therapy by patients’ opinions about survival gains: cross sectional survey of general practitioners. BMC Family Practice.  ISSN 1471-2296.  16 . doi: 10.1186/s12875-015-0288-8
  • Kvamme, Maria Knoph; Lie, Elisabeth; Uhlig, Till; Moger, Tron Anders; Kvien, Tore Kristian & Kristiansen, Ivar Sønbø (2015). 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.  ISSN 1462-0324.  54(7), s 1226- 1235 . doi: 10.1093/rheumatology/keu460
  • Pedersen, Kine; Lönnberg, Stefan; Skare, Gry Baadstrand; Sørbye, Sveinung Wergeland; Burger, Emily & Kristiansen, Ivar Sønbø (2015). Kostnader ved Masseundersøkelsen mot livmorhalskreft. Sykepleien Forskning.  ISSN 1890-2936.  s 62- 71 . doi: 10.4220/Sykepleienf.2015.53414
  • Pedersen, Kine; Sørbye, Sveinung Wergeland; Burger, Emily; Lönnberg, Stefan & Kristiansen, Ivar Sønbø (2015). Using decision-analytic modeling to isolate interventions that are feasible, efficient and optimal: an application from the Norwegian Cervical Cancer Screening Program. Value in Health.  ISSN 1098-3015.  18(8), s 1088- 1097 . doi: 10.1016/j.jval.2015.08.003
  • Burger, Emily; Nygård, Mari; Gyrd-Hansen, Dorte; Moger, Tron Anders & Kristiansen, Ivar Sønbø (2014). Does the primary screening test influence women's anxiety and intention to screen for cervical cancer? A randomized survey of Norwegian women. BMC Public Health.  ISSN 1471-2458.  14:360 . doi: 10.1186/1471-2458-14-360
  • Burger, Emily; Sy, Stephen; Nygård, Mari; Kristiansen, Ivar Sønbø & Kim, Jane J (2014). Prevention of HPV-Related Cancers in Norway: Cost-Effectiveness of Expanding the HPV Vaccination Program to Include Pre-Adolescent Boys . PLoS ONE.  ISSN 1932-6203.  9(3), s e89974 . doi: 10.1371/journal.pone.0089974
  • Bøhmer, Ellen; Kristiansen, Ivar Sønbø; Arnesen, Harald & Halvorsen, Sigrun (2014). Health-related quality of life after myocardial infarction, does choice of method make a difference?. Scandinavian Cardiovascular Journal.  ISSN 1401-7431.  48(4), s 216- 222 . doi: 10.3109/14017431.2014.923581
  • De Blasio, Birgitte Freiesleben; Flem, Elmira; Latipov, Renat; Kuatbaeva, Ajnagul & Kristiansen, Ivar Sønbø (2014). Dynamic Modeling of Cost-effectiveness of Rotavirus Vaccination, Kazakhstan . Emerging Infectious Diseases.  ISSN 1080-6040.  20(1), s 29- 37 . doi: 10.3201/eid2001.130019
  • Harmsen, Charlotte G; Kristiansen, Ivar Sønbø; Larsen, Pia Veldt; Nexøe, Jørgen; Støvring, Henrik; Gyrd-Hansen, Dorte; Nielsen, Jesper Bo; Edwards, Adrian & Jarbøl, Dorte E (2014). Communicating risk using absolute risk reduction or prolongation of life formats: Cluster-randomisedtrial in general practice. British Journal of General Practice.  ISSN 0960-1643.  64(621), s e199- e207 . doi: 10.3399/bjgp14X677824
  • Lousdal, Mette L; Kristiansen, Ivar Sønbø; Møller, Bjørn & Støvring, Henrik (2014). Trends in breast cancer stage distribution before, during and after introduction of a screening programme in Norway. European Journal of Public Health.  ISSN 1101-1262.  24(6), s 1017- 1022 . doi: 10.1093/eurpub/cku015
  • LUNDQVIST, CHRISTOFER; Beiske, Antonie Giæver; Reiertsen, Ola & Kristiansen, Ivar Sønbø (2014). Real life cost and quality of life associated with continuous intraduodenal levodopa infusion compared with oral treatment in Parkinson patients. Journal of Neurology.  ISSN 0340-5354.  261(12), s 2438- 2445 . doi: 10.1007/s00415-014-7515-4
  • Augestad, Liv Ariane; Rand-Hendriksen, Kim; Stavem, Knut & Kristiansen, Ivar Sønbø (2013). Time trade-off and attitudes toward euthanasia: implications of using 'death' as an anchor in health state valuation. Quality of Life Research.  ISSN 0962-9343.  22(4), s 705- 714 . doi: 10.1007/s11136-012-0192-9
  • Boberg, Kirsten Muri; Wisløff, Torbjørn; Kjøllesdal, Karl Sæbjørn; Støvring, Henrik & Kristiansen, Ivar Sønbø (2013). Cost and health consequences of treatment of primary biliary cirrhosis with ursodeoxycholic acid. Alimentary Pharmacology and Therapeutics.  ISSN 0269-2813.  38(7), s 794- 803 . doi: 10.1111/apt.12435
  • Halvorsen, Peder Andreas; Edwards, A.; Aaraas, Ivar Johannes; Aasland, Olaf Gjerløw & Kristiansen, Ivar Sønbø (2013). What professional activities do general practitioners find most meaningful? Cross sectional survey of Norwegian general practitioners. BMC Family Practice.  ISSN 1471-2296.  14(41) . doi: 10.1186/1471-2296-14-41
  • Harmsen, Charlotte G; Jarbøl, Dorte E; Nexøe, Jørgen; Støvring, Henrik; Gyrd-Hansen, Dorte; Nielsen, Jesper Bo; Edwards, Adrian & Kristiansen, Ivar Sønbø (2013). Impact of effectiveness information format on patient choice of therapy and satisfaction with decisions about chronic disease medication: the "Influence of intervention Methodologies on Patient Choice of Therapy (IMPACT)" cluster-randomised trial in general practice. BMC Health Services Research.  ISSN 1472-6963.  13 . doi: 10.1186/1472-6963-13-76
  • Støvring, Henrik; Harmsen, CG; Wisløff, Torbjørn; Jarbøl, DE; Nexøe, Jørgen; Nielsen, Jesper Bo & Kristiansen, Ivar Sønbø (2013). A competing risk approach for the European Heart SCORE model based on cause-specific and all-cause mortality . European Journal of Preventive Cardiology.  ISSN 2047-4873.  20(5), s 827- 836 . doi: 10.1177/2047487312445425
  • Wisløff, Torbjørn; Atar, Dan & Kristiansen, Ivar Sønbø (2013). Cost Effectiveness of Drug-Eluting Stents as Compared With Bare Metal Stents in Patients With Coronary Artery Disease. American Journal of Therapeutics.  ISSN 1075-2765.  20(6), s 596- 601 . doi: 10.1097/MJT.0b013e3182211a01
  • Augestad, Liv Ariane; Rand-Hendriksen, Kim; Kristiansen, Ivar Sønbø & Stavem, Knut (2012). Impact of Transformation of Negative Values and Regression Models on Differences Between the UK and US EQ-5D Time Trade-Off Value Sets . PharmacoEconomics (Auckland).  ISSN 1170-7690.  30(12), s 1203- 1214 . doi: 10.2165/11595420-000000000-00000
  • Augestad, Liv Ariane; Rand-Hendriksen, Kim; Kristiansen, Ivar Sønbø & Stavem, Knut (2012). Learning Effects in Time Trade-Off Based Valuation of EQ-5D Health States. Value in Health.  ISSN 1098-3015.  15(2), s 340- 345 . doi: 10.1016/j.jval.2011.10.010
  • Burger, Emily; Ortendahl, J D; Sy, S; Kristiansen, Ivar Sønbø & Kim, J.J. (2012). Cost-effectiveness of cervical cancer screening with primary human papillomavirus testing in Norway. British Journal of Cancer.  ISSN 0007-0920.  106(9), s 1571- 1578 . doi: 10.1038/bjc.2012.94
  • Fretheim, Atle; Odgaard-Jensen, Jan; Brørs, Odd; Madsen, Steinar; Njølstad, Inger; Norheim, Ole Frithjof; Svilaas, Arne B; Kristiansen, Ivar Sønbø; Thurmer, Hanne & Flottorp, Signe (2012). Comparative effectiveness of antihypertensive medication of primary prevention of cardiovascular disease: Systematic review and multiple treatments meta-analysis . BMC Medicine.  ISSN 1741-7015.  10 . doi: 10.1186/1741-7015-10-33
  • Fuglenes, Dorthe; Aas, Eline; Botten, Grete Synøve; Øian, Pål & Kristiansen, Ivar Sønbø (2012). Maternal Preference for Cesarean Delivery Do Women Get What They Want?. Obstetrics and Gynecology.  ISSN 0029-7844.  120(2), s 252- 260 . doi: 10.1097/AOG.0b013e3182605b1a
  • Harmsen, Charlotte G; Støvring, Henrik; Jarbøl, Dorte E; Nexøe, Jørgen; Gyrd-Hansen, Dorte; Nielsen, Jesper Bo; Edwards, Adrian & Kristiansen, Ivar Sønbø (2012). Medication effectiveness may not be the major reason for accepting cardiovascular preventive medication: A population-based survey. BMC Medical Informatics and Decision Making.  ISSN 1472-6947.  12 . doi: 10.1186/1472-6947-12-89
  • Kvamme, Maria Knoph; Lie, Elisabeth; Kvien, Tore Kristian & Kristiansen, Ivar Sønbø (2012). Two-year direct and indirect costs for patients with inflammatory rheumatic joint diseases: data from real-life follow-up of patients in the NOR-DMARD registry. Rheumatology.  ISSN 1462-0324.  51(9), s 1618- 1627 . doi: 10.1093/rheumatology/kes074
  • Li, J; Ulvin, Kim Andre; Biboh, Henrietta & Kristiansen, Ivar Sønbø (2012). Cost-effectiveness of supplementing a broth-enriched culture test with the Xpert meticillin-resistant Staphylococcus aureus (MRSA) assay for screening inpatients at high risk of MRSA. Journal of Hospital Infection.  ISSN 0195-6701.  82(4), s 227- 233 . doi: 10.1016/j.jhin.2012.08.009
  • Rand-Hendriksen, Kim; Augestad, Liv Ariane; Dahl, Fredrik Andreas; Kristiansen, Ivar Sønbø & Stavem, Knut (2012). A Shortcut to Mean-Based Time Tradeoff Tariffs for the EQ-5D?. Medical decision making.  ISSN 0272-989X.  32(4), s 569- 577 . doi: 10.1177/0272989X11431607
  • Wisløff, Torbjørn; Selmer, Randi; Halvorsen, Sigrun; Fretheim, Atle; Norheim, Ole Frithjof & Kristiansen, Ivar Sønbø (2012). Choice of generic antihypertensive drugs for the primary prevention of cardiovascular disease - A cost-effectiveness analysis . BMC Cardiovascular Disorders.  ISSN 1471-2261.  12 . doi: 10.1186/1471-2261-12-26
  • Xue, Yiting; Kristiansen, Ivar Sønbø & De Blasio, Birgitte Freiesleben (2012). Dynamic modelling of costs and health consequences of school closure during an influenza pandemic. BMC Public Health.  ISSN 1471-2458.  12 . doi: 10.1186/1471-2458-12-962
  • Burger, Emily; Kornør, Hege; Klemp, Marianne; Lauvrak, Vigdis & Kristiansen, Ivar Sønbø (2011). HPV mRNA tests for the detection of cervical intraepithelial neoplasia: A systematic review. Gynecologic Oncology.  ISSN 0090-8258.  120(3), s 430- 438 . doi: 10.1016/j.ygyno.2010.11.013
  • Bøhmer, Ellen; Kristiansen, Ivar Sønbø; Arnesen, Harald & Halvorsen, Sigrun (2011). Health and cost consequences of early versus late invasive strategy after thrombolysis for acute myocardial infarction. European Journal of Cardiovascular Prevention & Rehabilitation.  ISSN 1741-8267.  18(5), s 717- 723 . doi: 10.1177/1741826711398425
  • Dybdahl, Torben; Søndergaard, Jens; Kragstrup, Jakob; Kristiansen, Ivar Sønbø & Andersen, Morten (2011). Primary care physicians' adoption of new drugs is not associated with their clinical interests: A pharmacoepidemiologic study. Scandinavian Journal of Primary Health Care.  ISSN 0281-3432.  29(2), s 117- 121 . doi: 10.3109/02813432.2011.570024
  • Fuglenes, Dorthe; Aas, Eline; Botten, Grete Synøve; Øian, Pål & Kristiansen, Ivar Sønbø (2011). Why do some pregnant women prefer cesarean? The influence of parity, delivery experiences, and fear. American Journal of Obstetrics and Gynecology.  ISSN 0002-9378.  205(1) . doi: 10.1016/j.ajog.2011.03.043
  • Gyrd-Hansen, Dorte; Halvorsen, Peder Andreas; Nexoe, J; Nielsen, Jesper Bo; Stovring, H & Kristiansen, Ivar Sønbø (2011). Joint and Separate Evaluation of Risk Reduction: Impact on Sensitivity to Risk Reduction Magnitude in the Context of 4 Different Risk Information Formats. Medical decision making.  ISSN 0272-989X.  31(1), s E1- E10 . doi: 10.1177/0272989X10391268
  • Halvorsen, Peder Andreas; Wisløff, Torbjørn; Støvring, Henrik; Aasland, Olaf Gjerløw & Kristiansen, Ivar Sønbø (2011). Therapeutic decisions by number needed to treat and survival gains: a cross-sectional survey of lipid-lowering drug recommendations . British Journal of General Practice.  ISSN 0960-1643.  61(589), s e477- e483
  • Latipov, Renat; Kuatbaeva, Aynagul; Kristiansen, Olga; Aubakirova, Saltanat; Akhanaeva, Ulbosin; Kristiansen, Ivar Sønbø & Flem, Elmira (2011). Economic burden of rotavirus disease in children under 5 years in Kazakhstan. Vaccine.  ISSN 0264-410X.  29(24), s 4175- 4180 . doi: 10.1016/j.vaccine.2011.03.019
  • Rand-Hendriksen, Kim; Augestad, Liv Ariane; Kristiansen, Ivar Sønbø & Stavem, Knut (2011). Comparison of hypothetical and experienced EQ-5D valuations: relative weights of the five dimensions . Quality of Life Research.  ISSN 0962-9343. . doi: 10.1007/s11136-011-0016-3
  • Ringen, Hanne Osnes; Kvamme, Maria Knoph; Kristiansen, Ivar Sønbø; Thingstad, Marianne; Henriksen, Jan Egil; Kvien, Tore Kristian & Dagfinrud, Hanne (2011). Cost-effectiveness analyses of elective orthopaedic surgical procedures in patients with inflammatory arthropathies. Scandinavian Journal of Rheumatology.  ISSN 0300-9742.  40(2), s 108- 115 . doi: 10.3109/03009742.2010.503661
  • Spronk, Sandra; van Kempen, Bob JH; Boll, Albertus PM; Jørgensen, Jørgen J.; Hunink, MG Myriam & Kristiansen, Ivar Sønbø (2011). Cost-effectiveness of screening for abdominal aortic aneurysm in the Netherlands and Norway. British Journal of Surgery.  ISSN 0007-1323.  98(11), s 1546- 1555 . doi: 10.1002/bjs.7620
  • Wisløff, Torbjørn; Aalen, Odd O. & Kristiansen, Ivar Sønbø (2011). Considerable variation in NNT - A study based on Monte Carlo simulations. Journal of Clinical Epidemiology.  ISSN 0895-4356.  64(4), s 444- 450 . doi: 10.1016/j.jclinepi.2010.04.025
  • Desser, Arna S.; Gyrd-Hansen, Dorte; Olsen, Jan Abel; Grepperud, Sverre & Kristiansen, Ivar Sønbø (2010). Societal views on orphan drugs: cross sectional survey of Norwegians aged 40 to 67. BMJ (British Medical Journal).  ISSN 0959-8146.  341(c4715) . doi: BMJ 2010; 341:c4715
  • Fjalestad, Tore; Hole, Margrethe Øye; Jørgensen, Jørgen J.; Strømsøe, Knut & Kristiansen, Ivar Sønbø (2010). Health and cost consequences of surgical versus conservative treatment for a comminuted proximal humeral fracture in elderly patients. Injury.  ISSN 0020-1383.  41(6), s 599- 605 . doi: 10.1016/j.injury.2009.10.056
  • Fuglenes, Dorthe; Øian, Pål; Gyrd-Hansen, D; Olsen, Jan Abel & Kristiansen, Ivar Sønbø (2010). Norwegian obstetricians' opinions about cesarean section on maternal request: should women pay themselves?. Acta Obstetricia et Gynecologica Scandinavica.  ISSN 0001-6349.  89(12), s 1582- 1588 . doi: 10.3109/00016349.2010.526181
  • Halvorsen, Peder A; Selmer, Randi Marie & Kristiansen, Ivar S (2010). Anticipated longevity among lay people screened for cardiovascular risk factors: A cross-sectional questionnaire study. Scandinavian Journal of Public Health.  ISSN 1403-4948.  38(5), s 481- 488 . doi: 10.1177/1403494810370235
  • Kvamme, Maria Knoph; Gyrd-Hansen, Dorte; Olsen, Jan Abel & Kristiansen, Ivar Sønbø (2010). Increasing marginal utility of small increases in life-expectancy? Results from a population survey. Journal of Health Economics.  ISSN 0167-6296.  29(4), s 541- 548 . doi: 10.1016/j.jhealeco.2010.03.010
  • Kvamme, Maria Knoph; Kristiansen, Ivar Sønbø; Lie, Elisabeth & Kvien, Tore Kristian (2010). Identification of Cutpoints for Acceptable Health Status and Important Improvement in Patient-Reported Outcomes, in Rheumatoid Arthritis, Psoriatic Arthritis, and Ankylosing Spondylitis. Journal of Rheumatology.  ISSN 0315-162X.  37(1), s 26- 31 . doi: 10.3899/jrheum.090449
  • Lillegraven, Siri; Kristiansen, Ivar Sønbø & Kvien, Tore Kristian (2010). Comparison of utility measures and their relationship with other health status measures in 1041 patients with rheumatoid arthritis. Annals of the Rheumatic Diseases.  ISSN 0003-4967.  69(10), s 1762- 1767 . doi: 10.1136/ard.2009.124099
  • Nielsen, Jesper Bo; Elstein, Arthur S; Gyrd-Hansen, D; Kildemoes, HW; Kristiansen, Ivar Sønbø & Støvring, H (2010). Effects of Alternative Styles of Risk Information on EMF Risk Perception. Bioelectromagnetics.  ISSN 0197-8462.  31(7), s 504- 512 . doi: 10.1002/bem.20586
  • Solli, Oddvar; Jenssen, Trond Geir & Kristiansen, Ivar Sønbø (2010). Diabetes: cost of illness in Norway. BMC Endocrine Disorders.  ISSN 1472-6823.  10 . doi: 10.1186/1472-6823-10-15
  • Solli, Oddvar; Stavem, Knut & Kristiansen, Ivar Sønbø (2010). Health-related quality of life in diabetes: The associations of complications with EQ-5D scores. Health and Quality of Life Outcomes.  ISSN 1477-7525.  8 . doi: 10.1186/1477-7525-8-18
  • Wisløff, Torbjørn; Aalen, Odd O. & Kristiansen, Ivar Sønbø (2010). Considerable variation in NNT - A study based on Monte Carlo simulations. Journal of Clinical Epidemiology.  ISSN 0895-4356. . doi: 10.1016/j.jclinepi.2010.04.025
  • Xue, Yiting; Kristiansen, Ivar Sønbø & De Blasio, Birgitte Freiesleben (2010). Modeling the cost of influenza: the impact of missing costs of unreported complications and sick leave. BMC Public Health.  ISSN 1471-2458.  10(724) . doi: 10.1186/1471-2458-10-724
  • Fuglenes, D; Oian, P; Øian, Pål & Kristiansen, Ivar Sønbø (2009). Obstetricians' choice of cesarean delivery in ambiguous cases: is it influenced by risk attitude or fear of complaints and litigation?. American Journal of Obstetrics and Gynecology.  ISSN 0002-9378.  200(1) . doi: 10.1016/j.ajog.2008.07.021
  • Hamidi, Vida; Andersen, Marit Helen; Øyen, Ole; Mathisen, Lars; Fosse, Erik & Kristiansen, Ivar Sønbø (2009). Cost effectiveness of open versus laparoscopic living-donor nephrectomy. Transplantation.  ISSN 0041-1337.  87(6), s 831- 838 . doi: 10.1097/TP.0b013e318199cfc9
  • Kristiansen, Ivar Sønbø; Bingefors, K; Nyholm, D & Isacson, D (2009). Short-term cost and health consequences of duodenal levodopa infusion in advanced Parkinson's disease in Sweden: an exploratory analysis. Applied Health Economics and Health Policy.  ISSN 1175-5652.  7(3), s 167- 180
  • Kristiansen, Ivar Sønbø; Elstein, Arthur S; Gyrd-Hansen, Dorte; Kildemoes, Helle Wallach & Nielsen, Jesper Bo (2009). Radiation From Mobile Phone Systems: Is it Perceived as a Threat to People's Health?. Bioelectromagnetics.  ISSN 0197-8462.  30(5), s 393- 401 . doi: 10.1002/bem.20484
  • Kristiansen, Ivar Sønbø; Halvorsen, Peder Andreas & Nexøe, Jørgen (2009). Kritik av riskbegrepet-berätigad eller ej, I: John Brodersen; Birgitta Hovelius & Lotta Hvas (red.),  Skapar vården ohälsa?.  Studentlitteratur AB.  ISBN 9789144052557.  kapittel 25.  s 317 - 328

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  • Mundal, Liv; Igland, Jannicke; Veierød, Marit Bragelien; Holven, Kirsten Bjørklund; Selmer, Randi; Wisløff, Torbjørn; Kristiansen, Ivar Sønbø & Retterstøl, Kjetil (2016). INCIDENCE OF ACUTE MYOCARDIAL INFARCTION IN PATIENTS WITH GENOTYPED FAMILIAL HYPERCHOLESTEROLEMIA IN NORWAY DURING 2001-2009. Circulation.  ISSN 0009-7322.  134(25), s E711- E711
  • Pedersen, Kine; Burger, Emily; Sy, Stephen; Kristiansen, Ivar Sønbø & Kim, Jane J. (2016). Cost-effective management of women with minor cervical lesions: Revisiting the application of HPV DNA testing.
  • Sørbye, Sveinung Wergeland; Kristiansen, Ivar Sønbø; Ursin, Giske; Iversen, Ole-Erik & Aarseth, Hans Petter (2016, 09. mai). Fortsatt strid om etikken bak HPV-prosjekt . [Internett].  Dagens Medisin.
  • Pedersen, Kine; Sørbye, Sveinung Wergeland; Burger, Emily; Lönnberg, Stefan & Kristiansen, Ivar Sønbø (2015). Quantifying benefits and harms in cervical cancer screening: A decision analytic approach.
  • Pedersen, Kine; Sørbye, Sveinung Wergeland; Kristiansen, Ivar Sønbø & Burger, Emily (2015). Novel Biomarkers to Triage Women with Minor Cervical Lesions: Quantifying the Cost-Effectiveness Tradeoffs to Ensure Feasible Implementation..
  • Kristiansen, Ivar Sønbø (2014). Re: Hvorfor blir jeg ikke sitert?. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  134(16), s 1547 . doi: 10.4045/tidsskr.14.0915
  • Kristiansen, Ivar Sønbø & Sørbye, Sveinung Wergeland (2014). HPV-testing: Usikkerhet og verdivalg . Dagens medisin.  ISSN 1501-4290.  (04)
  • Pedersen, Kine; Sørbye, Sveinung Wergeland; Lönnberg, Stefan; Burger, Emily & Kristiansen, Ivar Sønbø (2014). Trade-offs in cervial cancer screening - Balancing detected cancer precursors and resource use .
  • Sørbye, Sveinung Wergeland & Kristiansen, Ivar Sønbø (2014). - En celleprøve er ikke en perfekt test som kan garantere mot utvikling av livmorhals-kreft . Avisa Nordland.  s 3- 3
  • Sørbye, Sveinung Wergeland & Kristiansen, Ivar Sønbø (2014). Forebygging av livmorhalskreft . Avisa Nordland.  s 3- 3
  • Sørbye, Sveinung Wergeland; Stålcrantz, Jeanette; Trovik, Jone; Nøkleby, Hanne & Kristiansen, Ivar Sønbø (2014, 12. oktober). - Alle kvinner bør ta denne vaksinen . [Internett].  Klikk.no.
  • Tveito, Marit & Kristiansen, Ivar Sønbø (2014). Tallenes taler. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  134(3), s 288- 290 . doi: 10.4045/tidsskr.13.1638
  • Olsen, Jan Abel; Kristiansen, Ivar Sønbø; Magnussen, Jon; Norheim, Ole Frithjof & Robberstad, Bjarne (2013). Fagkritikkens utfordringer. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  133(5), s 499 . doi: 10.4045/tidsskr.13.0174
  • Samuelsen, Carl Haakon; Augestad, Liv Ariane; Stavem, Knut; Kristiansen, Ivar Sønbø & Rand-Hendriksen, Kim (2013). Anchoring effects in the Lead-Time Time Trade-Off.
  • Sørbye, Sveinung Wergeland; Halvorsen, Peder Andreas & Kristiansen, Ivar Sønbø (2013). Screening for livmorhalskreft – fastlegenes viktigste screeningoppgave? . Utposten.  ISSN 0800-5680.  42(2), s 34- 37
  • Augestad, Liv Ariane; Rand-Hendriksen, Kim; Kristiansen, Ivar Sønbø & Stavem, Knut (2012). Time trade-off and attitudes toward euthanasia: implications using ‘death’ as an anchor in health state valuation.
  • Augestad, Liv Ariane; Rand-Hendriksen, Kim; Stavem, Knut & Kristiansen, Ivar Sønbø (2012). What factors explain willingness to trade in the time trade-off exercises, and what factors are important?.
  • Kristiansen, Ivar Sønbø (2012). SURVIVAL CURVE CONVERGENCES AND CROSSING: A THREAT TO VALIDITY OF META-ANALYSIS?. Value in Health.  ISSN 1098-3015.  15(7), s A652- A652
  • Rand-Hendriksen, Kim; Augestad, Liv Ariane; Kristiansen, Ivar Sønbø & Stavem, Knut (2012). Postal or web-based? Population representativeness in health survey settings.
  • Rand-Hendriksen, Kim; Augestad, Liv Ariane; Kristiansen, Ivar Sønbø & Stavem, Knut (2012). Time trade-off and ranking exercises are sensitive to different dimensions of EQ-5D health states.
  • Wisløff, Torbjørn; Aalen, Odd O. & Kristiansen, Ivar Sønbø (2012). Regarding adequate methods for comparison of effect measures - Reply. Journal of Clinical Epidemiology.  ISSN 0895-4356.  65(4), s 462- 463 . doi: 10.1016/j.jclinepi.2011.10.005
  • Augestad, Liv Ariane; Rand-Hendriksen, Kim; Stavem, Knut & Kristiansen, Ivar Sønbø (2011). Attitudes Towards Euthanasia Influences Values Elicited With the TTO Method.
  • Hagen, Gunhild; Wisløff, Torbjørn; Falch, Jan; Lofthus, Cathrine; Frihagen, Frede; Wensaas, Knut-Arne; Granum, Lars; Nevjar, Janicke; Kristiansen, Ivar Sønbø & Klemp, Marianne (2011). Efficacy and cost-effectiveness of alendronate for the prevention of fractures in postmenopausal women in Norway .
  • Augestad, Liv Ariane; Rand-Hendriksen, Kim; Stavem, Knut & Kristiansen, Ivar Sønbø (2010). Learning Effects in EQ-5D TTO Valuation.
  • Augestad, Liv Ariane; Rand-Hendriksen, Kim; Stavem, Knut & Kristiansen, Ivar Sønbø (2010). Learning Effects in EQ-5D Time Trade-Off Valuations.
  • Bøhmer, Ellen; Kristiansen, Ivar Sønbø; Arnesen, H & Halvorsen, Sigrun (2010). Cost-effectiveness of an early invasive versus conservative strategy in ST-elevation myocardial infarction treated with thrombolysis. European Heart Journal.  ISSN 0195-668X.  31, s 225- 226
  • Desser, Arna S. & Kristiansen, Ivar Sønbø (2010, 24. september). Ikke helse for enhver pris.  Aftenposten.
  • Hagen, Gunhild; Wisløff, Torbjørn; Falch, Jan; Lofthus, Cathrine; Frihagen, Frede; Wensaas, Knut-Arne; Granum, Lars; Nevjar, Janicke; Kristiansen, Ivar Sønbø & Klemp, Marianne (2010). Efficacy and cost-effectiveness of alendronate for the prevention of fractures in postmenopausal women in Norway .
  • Kristiansen, Ivar Sønbø & Øian, P (2010). Et risikofritt liv?. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  130(11), s 1126
  • Rand-Hendriksen, Kim; Augestad, Liv Ariane; Kristiansen, Ivar Sønbø & Stavem, Knut (2010). Comparison of hypothetical and experienced EQ-5D valuation: relative weights of the 5 dimensions.
  • Rand-Hendriksen, Kim; Augestad, Liv Ariane; Stavem, Knut & Kristiansen, Ivar Sønbø (2010). Relative Importance of EQ-5D Dimensions in Experienced and Hypothetical Health Valuations.
  • Augestad, Liv Ariane; Rand-Hendriksen, Kim; Stavem, Knut & Kristiansen, Ivar Sønbø (2009). Choice of Transformation of Negative Utilities: Impact on Final Tariffs.
  • Augestad, Liv Ariane; Rand-Hendriksen, Kim; Stavem, Knut & Kristiansen, Ivar Sønbø (2009). Choice of transformation on negative utilities: Impact on the US and UK tariffs.
  • Hagen, Gunhild; Wisløff, Torbjørn; Kristiansen, Ivar Sønbø & Klemp, Marianne (2009). Cost-effectiveness of first-line treatment for osteoporosis when the drug goes generic.
  • Rand-Hendriksen, Kim; Augestad, Liv Ariane; Stavem, Knut & Kristiansen, Ivar Sønbø (2009). Time Out for Time Trade-Off: Redundant or Invalid Measures in US, UK, and Danish EQ-5D Valuation Studies.

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Published Apr. 13, 2011 2:45 PM - Last modified Nov. 3, 2016 1:47 PM