Ørnulf Borgan

Bilde av Ørnulf Borgan
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Telefon +47-22855862
Rom 809
Brukernavn
Besøksadresse Rom B809 Matematikkbygningen Moltke Moes vei 35 0851 Oslo
Postadresse Postboks 1053 Blindern 0316 OSLO
Andre tilknytninger Matematisk institutt

Faglige interesser

  • Levetids- og forløpsanalyse

  • Kasus-kontroll studier

  • Prediksjon av overlevelse fra genomiske data

Bakgrunn

Ørnulf Borgan har siden 1993 vært professor i statistikk ved Matematisk institutt, Univeristetet i Oslo. Hans hovedinteresse er statistiske metoder i levetids- og forløpsanalyse, med vekt på metoder basert på telleprosesser. Han har publisert en rekke arbeider innen dette feltet, og han er medforfatter av monografiene "Statistical models based on counting processes" (Springer, 1993) og "Survival and event history analysis: a process point of view" (Springer, 2008). Borgan har vært medredaktør i "Annals of Statistics" (1998-2003) og "Scandinavian Journal of Statistics" (1997-2003), og i perioden 2007-2009 var han hovedredaktør for sistnevnte tidsskrift. I det akademiske året 2005-2006 ledet Borgan sammen med Odd Aalen en internasjonal forskningsgruppe om "Statistical Analysis of Complex Event History Data" ved Senter for Grunnforskning ved Det Norske Videnskaps-Akademi.

Undervisning

CV

Curriculum vitae  

 
Emneord: Statistikk, Biostatistikk

Publikasjoner

  • Borgan, Ørnulf & Keogh, Ruth (2015). Nested case–control studies: should one break the matching?. Lifetime Data Analysis.  ISSN 1380-7870.  21(4), s 517- 541 . doi: 10.1007/s10985-015-9319-y
  • Borgan, Ørnulf & Zhang, Ying (2015). Using Cumulative Sums of Martingale Residuals for Model Checking in Nested Case-Control Studies. Biometrics.  ISSN 0006-341X.  71(3), s 696- 703 . doi: 10.1111/biom.12308
  • Gran, Jon Michael; Lie, Stein Atle; Øyeflaten, Irene Larsen; Borgan, Ørnulf & Aalen, Odd O. (2015). Causal inference in multi-state models-sickness absence and work for 1145 participants after work rehabilitation. BMC Public Health.  ISSN 1471-2458.  15:1082 . doi: 10.1186/s12889-015-2408-8 Fulltekst i vitenarkiv
  • Strohmaier, Susanne; Røysland, Kjetil; Hoff, Rune; Borgan, Ørnulf; Pedersen, Terje Rolf & Aalen, Odd O. (2015). Dynamic path analysis - a useful tool to investigate mediation processes in clinical survival trials. Statistics in Medicine.  ISSN 0277-6715.  34(29), s 3866- 3887 . doi: 10.1002/sim.6598
  • Günther, Clara-Cecilie; Tvete, Ingunn Fride; Aas, Kjersti; Hagen, Jørgen Andreas; Kvifte, Lars & Borgan, Ørnulf (2014). Predicting Future Claims Among High Risk Policyholders Using Random Effects, In Dmitrii Silvestrov & Anders Martin-Löf (ed.),  Modern Problems in Insurance Mathematics.  Springer.  ISBN 978-3-319-06652-3.  11.  s 171 - 186
  • Günther, Clara-Cecilie; Tvete, Ingunn Fride; Aas, Kjersti; Sandnes, Geir Inge & Borgan, Ørnulf (2014). Modelling and predicting customer churn from an insurance company . Scandinavian Actuarial Journal.  ISSN 0346-1238.  (1), s 58- 71 . doi: 10.1080/03461238.2011.636502
  • Borgan, Ørnulf & Samuelsen, Sven Ove (2013). Nested Case-Control and Case-Cohort Studies, In John P Klein; Hans C van Houwelingen; Joseph G Ibrahim & Thomas H Scheike (ed.),  Handbook of Survival Analysis.  CRC Press.  ISBN 9781466555662.  Kapittel 17.  s 343 - 367
  • Nilsen, Gro; Borgan, Ørnulf; Liestøl, Knut & Lingjærde, Ole Christian (2013). Identifying clusters in genomics data by recursive partitioning. Statistical Applications in Genetics and Molecular Biology.  ISSN 1544-6115.  12(5), s 637- 652 . doi: 10.1515/sagmb-2013-0016
  • Paulsen, Jonas; Lien, Tonje Gulbrandsen; Sandve, Geir Kjetil; Holden, Lars; Borgan, Ørnulf; Glad, Ingrid Kristine & Hovig, Johannes Eivind (2013). Handling realistic assumptions in hypothesis testing of 3D co-localization of genomic elements . Nucleic Acids Research.  ISSN 0305-1048.  41(10), s 5164- 5174 . doi: 10.1093/nar/gkt227
  • Aldrin, Magne; Lyngstad, Trude Marie; Kristoffersen, Anja Bråthen; Storvik, Bård; Borgan, Ørnulf & Jansen, Peder Andreas (2011). Modelling the spread of infectious salmon anaemia among salmon farms based on seaway distances between farms and genetic relationships between infectious salmon anaemia virus isolates. Journal of the Royal Society Interface.  ISSN 1742-5662.  8(62), s 1346- 1356 . doi: 10.1098/rsif.2010.0737
  • Bøvelstad, Hege & Borgan, Ørnulf (2011). Assessment of evaluation criteria for survival prediction from genomic data. Biometrical Journal.  ISSN 0323-3847.  53(2), s 202- 216 . doi: 10.1002/bimj.201000048
  • Moger, Tron Anders; Haugen, Marion; Yip, Benjamin H. K.; Gjessing, Håkon & Borgan, Ørnulf (2011). A hierarchical frailty model applied to two-generation melanoma data. Lifetime Data Analysis.  ISSN 1380-7870.  17(3), s 445- 460 . doi: 10.1007/s10985-010-9188-3
  • Aalen, Odd O.; Andersen, Per Kragh; Borgan, Ørnulf; Gill, Richard D. & Keiding, Niels (2009). History of applications of martingales in survival analysis. Journal Électronique d'Histoire des Probabililtés et de la Statistique.  ISSN 1773-0074.  5(1), s 1- 28
  • Bøvelstad, Hege; Nygård, Ståle & Borgan, Ørnulf (2009). Survival prediction from clinico-genomic models - a comparative study. BMC Bioinformatics.  ISSN 1471-2105.  10 . doi: 10.1186/1471-2105-10-413
  • Moger, Tron Anders; Pawitan, Yudi & Borgan, Ørnulf (2008). Case-cohort methods for survival data on families from routine registers. Statistics in Medicine.  ISSN 0277-6715.  27, s 1062- 1074 . doi: 10.1002/sim.3004
  • Nygård, Ståle; Borgan, Ørnulf; Lingjærde, Ole Christian & Størvold, Hege Leite (2008). Partial least squares Cox regression for genome-wide data. Lifetime Data Analysis.  ISSN 1380-7870.  14, s 179- 195 . doi: 10.1007/s10985-007-9076-7
  • Borgan, Ørnulf (2007). Event history analysis: An overview and some areas of current research, In Willy Østreng (ed.),  Consilience.  Centre for Advanced Study at the Norwegian Academy of Science and Letters.  ISBN 978-82-996367-4-2.  artikkel.  s 60 - 64
  • Borgan, Ørnulf; Fiaccone, RL; Henderson, R & Barreto, ML (2007). Dynamic analysis of recurrent event data with missing observations, with application to infant diarrhoea in Brazil. Scandinavian Journal of Statistics.  ISSN 0303-6898.  34, s 53- 69 . doi: 10.1111/j.1467-9469.2006.00525.x
  • Borgan, Ørnulf & Langholz, Bryan (2007). Using martingale residuals to assess goodness-of-fit for sampled risk set data, In Vijay Nair (ed.),  Advances in statistical modeling and inference. Essays in honor of Kjell A. Doksum.  World Scientific.  ISBN 981-270-369-1.  kapittel 4.  s 65 - 90
  • Bøvelstad, Hege; Nygård, Ståle; Størvold, Hege Leite; Aldrin, Magne; Borgan, Ørnulf; Frigessi, Arnoldo & Lingjærde, Ole Christian (2007). Predicting survival from microarray data - a comparative study . Bioinformatics.  ISSN 1367-4803.  23, s 2080- 2087 . doi: 10.1093/bioinformatics/btm305
  • Gunnes, Nina; Borgan, Ørnulf & Aalen, Odd O. (2007). Estimating stage occupation probabilities in non-Markov models. Lifetime Data Analysis.  ISSN 1380-7870.  13, s 211- 240 . doi: 10.1007/s10985-007-9034-4
  • Langerod, A; Zhao, H; Borgan, Ørnulf; Nesland, Jahn M; Bukholm, IR; Ikdahl, T; Kåresen, Rolf; Børresen-Dale, Anne-Lise & Jeffrey, SS (2007). TP53 mutation status and gene expression profiles are powerful prognostic markers of breast cancer. Breast Cancer Research.  ISSN 1465-542X.  9, s R30 . doi: 10.1186/bcr1675
  • Fosen, Johan; Borgan, Ørnulf; Weedon-Fekjaer, H & Aalen, Odd Olai (2006). Dynamic analysis of recurrent event data using the additive hazard model. Biometrical Journal.  ISSN 0323-3847.  48, s 381- 398
  • Fosen, Johan; Ferkingstad, Egil; Borgan, Ørnulf & Aalen, Odd O. (2006). Dynamic path analysis - a new approach to analyzing time-dependent covariates. Lifetime Data Analysis.  ISSN 1380-7870.  12, s 143- 167
  • Stavem, K; Bjortuft, O; Borgan, Ørnulf; Geiran, O & Boe, J (2006). Lung transplantation in patients with chronic obstructive pulmonary disease in a national cohort is without obvious survival benefit. The Journal of Heart and Lung Transplantation.  ISSN 1053-2498.  25
  • Aalen, Odd Olai; Fosen, Johan; Weedon-Fekjær, Harald; Borgan, Ørnulf & Husebye, Einar (2004). Dynamic analysis of multivariate failure time data. Biometrics.  ISSN 0006-341X.  60, s 764- 773
  • Borgan, Ørnulf & Samuelsen, Sven Ove (2003). A review of cohort sampling designs for Cox's regression model: Potentials in epidemiology. Norsk Epidemiologi.  ISSN 0803-2491.  13(2), s 239- 248
  • Borgan, Ørnulf (2002). Estimation of covariate-dependent Markov transition probabilites from nested case-control data. Statistical Methods in Medical Research.  ISSN 0962-2802.  11, s 183- 202
  • Aalen, Odd Olai; Borgan, Ørnulf & Weedon-Fekjær, Harald (2001). Covariate adjustment of event histories estimated from Markov chains: The additive approach. Biometrics.  ISSN 0006-341X.  57, s 993- 1001
  • Borgan, Ørnulf; Langholz, Bryan; Samuelsen, Sven Ove; Goldstein, Larry & Pogoda, Janice (2000). Exposure stratified case-cohort designs. Lifetime Data Analysis.  ISSN 1380-7870.  6, s 39- 58
  • Borgan, Ørnulf & Olsen, Espen F. (1999). The efficiency of simple and counter-matched nested case-control sampling. Scandinavian Journal of Statistics.  ISSN 0303-6898.  26, s 493- 509
  • Zhang, Jian & Borgan, Ørnulf (1999). Aalen's linear model for sampled risk set data: a large sample study. Lifetime Data Analysis.  ISSN 1380-7870.  5, s 345- 363
  • Borgan, Ørnulf & Langholz, Bryan (1998). Risk set sampling for proportional hazards models, In Brian S. Everitt & Graham Dunn (ed.),  Statistical Analysis of Medical Data: New Developments.  Arnold, London.  ISBN 0-340-67775-9.  s 75 - 100
  • Borgan, Ørnulf & Langholz, Bryan (1997). Estimation of excess risk from case-control data using Aalen's linear regression model. Biometrics.  ISSN 0006-341X.  53, s 690- 697
  • Langholz, Bryan & Borgan, Ørnulf (1997). Estimation of absolute risk from nested case-control data. Biometrics.  ISSN 0006-341X.  53, s 767- 774
  • Grønnesby, Jon Ketil & Borgan, Ørnulf (1996). A method for checking regression models in survival analysis based on the risk score. Lifetime Data Analysis.  ISSN 1380-7870.  2, s 315- 328
  • Borgan, Ørnulf; Goldstein, Larry & Langholz, Bryan (1995). Methods for the analysis of sampled cohort data in the Cox proportional hazards model. Annals of Statistics.  ISSN 0090-5364.  23, s 1749- 1778
  • Langholz, Bryan & Borgan, Ørnulf (1995). Counter-matching: A stratified nested case-control sampling method. Biometrika.  ISSN 0006-3444.  82, s 69- 79
  • Borgan, Ørnulf & Langholz, Bryan (1993). Nonparametric estimation of relative mortality from nested case-control studies. Biometrics.  ISSN 0006-341X.  49, s 593- 602
  • Borgan, Ørnulf & Liestøl, Knut (1990). A note on confidence intervals and bands for the survival function based on transformations. Scandinavian Journal of Statistics.  ISSN 0303-6898.  17, s 35- 41
  • Andersen, Per Kragh; Borgan, Ørnulf; Gill, Richard D. & Keiding, Niels (1988). Censoring, truncation and filtering in statistical models based on counting processes. Contemporary Mathematics.  ISSN 0271-4132.  80, s 19- 60
  • Borgan, Ørnulf & Hoem, Jan M (1988). Demographic reproduction rates and the estimation of an expected total count per person in an open population. Journal of the American Statistical Association.  ISSN 0162-1459.  83, s 886- 891
  • Bie, Ole; Borgan, Ørnulf & Liestøl, Knut (1987). Confidence intervals and confidence bands for the cumulative hazard rate function and their small sample properties. Scandinavian Journal of Statistics.  ISSN 0303-6898.  14, s 221- 233
  • Andersen, Per Kragh & Borgan, Ørnulf (1985). Counting process models for life history data (with discussion). Scandinavian Journal of Statistics.  ISSN 0303-6898.  12, s 97- 158
  • Borgan, Ørnulf & Ramalu-Hansen, Henrik (1985). Demographic incidence rates and estimation of intensities with incomplete information. Annals of Statistics.  ISSN 0090-5364.  13, s 564- 582
  • Borgan, Ørnulf (1984). Maximum likelihood estimation in parametric counting process models, with applications to censored failure times data. Scandinavian Journal of Statistics.  ISSN 0303-6898.  11, s 1- 16
  • Borgan, Ørnulf; Liestøl, Knut & Ebbesen, Peter (1984). Efficiencies of experimental designs for an illness-death model. Biometrics.  ISSN 0006-341X.  40, s 627- 638
  • Ebbesen, Peter; Borgan, Ørnulf & Liestøl, Knut (1983). Decreasing luekemia risk in old AKR mice. Experimental Gerontology.  ISSN 0531-5565.  18, s 347- 353
  • Andersen, Per Kragh; Borgan, Ørnulf; Gill, Richard D. & Keiding, Niels (1982). Linear non-parametric tests for comparison of counting processes, with application to censored survival data (with discussion). International Statistical Review.  ISSN 0306-7734.  50, s 219- 258
  • Borgan, Ørnulf; Menné, Torkil & Green, Anders (1982). Interaction between nickel allergy and hand eczema in the Danish female population. Scandinavian Journal of Statistics.  ISSN 0303-6898.  9, s 183- 185
  • Menné, Torkil; Borgan, Ørnulf & Green, Anders (1982). Nickel allergy and hand dermatitis in a stratified sample of the Danish female population. An epidemiological study including a statistical appendix. Acta Dermato-Venereologica.  ISSN 0001-5555.  62, s 35- 41
  • Borgan, Ørnulf (1981). A nonasymptotic criterion for the evaluation of automobile bonus systems. Scandinavian Actuarial Journal.  ISSN 0346-1238.  s 165- 178
  • Borgan, Ørnulf (1981). Applications of non-homogeneous Markov chains to medical studies. Nonparametric analysis for prospective and retrospective data, In N Victor; W Lehmacher & W van Eimeren (ed.),  Explorative Datenanalyse, Frühjahrstagung der GMDS München, 1980, Proceedings.  Springer.  ISBN 3540102817.  Artikkel.  s 102 - 115
  • Aalen, Odd O.; Borgan, Ørnulf; Keiding, Niels & Thorman, Jens (1980). Interaction between life history events. Nonparametric analysis for prospective and retrospective data in the presence of censoring. Scandinavian Journal of Statistics.  ISSN 0303-6898.  7, s 161- 171
  • Borgan, Ørnulf (1979). Comparison of two sequential tests for two-sided alternatives. Journal of The Royal Statistical Society Series B-statistical Methodology.  ISSN 1369-7412.  41, s 101- 106
  • Borgan, Ørnulf (1979). On the theory of moving average graduation. Scandinavian Actuarial Journal.  ISSN 0346-1238.  s 83- 105

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  • Aalen, Odd O.; Borgan, Ørnulf & Gjessing, Håkon K. (2008). Survival and Event History Analysis: A Process Point of View. Springer.  ISBN 978-0-387-20287-7.  539 s.
  • Andersen, Per; Borgan, Ørnulf; Gill, Richard D. & Keiding, Niels (1993). Statistical models based on counting processes. Springer-Verlag, New York.  767 s.

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  • Günther, Clara-Cecilie; Tvete, Ingunn Fride; Aas, Kjersti; Hagen, Jørgen Andreas; Kvifte, Lars & Borgan, Ørnulf (2013). How to identify high risk policyholders for prediction of future insurance claims.
  • Günther, Clara-Cecilie; Tvete, Ingunn Fride; Aas, Kjersti; Hagen, Jørgen Andreas; Kvifte, Lars & Borgan, Ørnulf (2013). Hvordan identifisere høyrisikable forsikringstagere for prediksjon av framtidige skader?.
  • Günther, Clara-Cecilie; Tvete, Ingunn Fride; Aas, Kjersti; Hagen, Jørgen Andreas; Kvifte, Lars & Borgan, Ørnulf (2013). Predicting Future Claims Among High Risk Policyholders Using Random Effects.
  • Günther, Clara-Cecilie; Tvete, Ingunn; Aas, Kjersti; Sandnes, Geir Inge & Borgan, Ørnulf (2012). Modellering og prediksjon av kundeavgang.
  • Hobæk Haff, Ingrid; Frigessi, Arnoldo; Aas, Kjersti & Borgan, Ørnulf (2012). Pair-copula constructions - an inferential perspective.
  • Aldrin, Magne; Lyngstad, Trude Marie; Kristoffersen, Anja Bråthen; Storvik, Bård; Jansen, Peder A & Borgan, Ørnulf (2011). Modell for spredning av infeksiøs lakseanemi (ILA) i marine lakseanlegg i Norge.
  • Günther, Clara-Cecilie; Tvete, Ingunn Fride; Aas, Kjersti; Sandnes, Geir Inge & Borgan, Ørnulf (2011). Modelling and predicting customer churn from an insurance company.
  • Günther, Clara-Cecilie; Tvete, Ingunn Fride; Aas, Kjersti & Borgan, Ørnulf (2010). Modellering og prediksjon av kundeavgang.
  • Borgan, Ørnulf (2009). Inference and prediction in multi-state models: the additive approach. 57th Session of the International Statistical Institute.
  • Borgan, Ørnulf (2007). Discussion contribution to D. Zeng and D.Y. Lin's paper "Maximum likelihood estimation in semiparametric regression models with censored data". Journal of The Royal Statistical Society Series B-statistical Methodology.  ISSN 1369-7412.  69(4), s 545- 545
  • Borgan, Ørnulf & Bo H., Lindqvist (2007). Editorial. Scandinavian Journal of Statistics.  ISSN 0303-6898.  34(1), s 1- 2
  • Senn, S; Keiding, N; Andrews, N; Musonda, P; Hocine, M; Moreau, T; Chavance, M; Longford, NT; Cox, DR; Aalen, Odd O.; Andersen, PK; Borgan, Ørnulf; Gandy, A; Kanaan, MN; Oakes, D & Tomba, GS (2006). Semiparametric analysis of case series data - Discussion. Journal of the Royal Statistical Society, Series C: Applied Statistics.  ISSN 0035-9254.  55, s 581- 594
  • Borgan, Ørnulf; Aalen, Odd O. & Røsjø, Bjarne (2005, 01. oktober). Bedre statistikk kan redde flere liv.  Informasjonsblad nr 2/2005. Senter for grunnforskning.
  • Borgan, Ørnulf (2004). Sverdrup, Erling (1917-1994), In Jozef Teugels & Bjørn Ståle Sund (ed.),  Encyclopedia of Actuarial Science.  John Wiley & Sons.  ISBN 0-470-84676-3.  Vol. 3.  s 1665 - 1666
  • Borgan, Ørnulf (2003). Review of "The Statistical Analysis of Failure Time Data" by J.D. Kalbfleisch and R.L. Prentice. Journal of the American Statistical Association.  ISSN 0162-1459.  98(464), s 1084- 1085
  • Borgan, Ørnulf (2001). Cohort sampling in epidemiological studies. 53rd Session of The International Statistical Institute.
  • Borgan, Ørnulf (2001). Review of "Modeling Survival Data: Extending the Cox Model" by T. M. Therneau and P. M. Grambsch. Statistics in Medicine.  ISSN 0277-6715.  20, s 2053- 2054
  • Borgan, Ørnulf (1999). Countermatched sampling, In Samuel Kotz; CB Read & DL Banks (ed.),  Encyclopedia of Statistical Sciences.  Wiley, New York.  s 129 - 131
  • Borgan, Ørnulf (1999). Nested case-control sampling, In Samuel Kotz; CB Read & DL Banks (ed.),  Encyclopedia of Statistical Sciences.  Wiley, New York.  s 523 - 528
  • Borgan, Ørnulf (1999). Review of "Applied survival analysis" by C.T. Lee. Statistics in Medicine.  ISSN 0277-6715.  18, s 492- 494
  • Borgan, Ørnulf (1998). Aalen-Johansen estimator, In Peter Armitage & Theodore Colton (ed.),  Encyclopedia of Biostatistics.  Wiley, New York.  ISBN 0-471-97576-1.  s 5 - 10
  • Borgan, Ørnulf (1998). Kaplan-Meier estimator, In Peter Armitage & Theodore Colton (ed.),  Encyclopedia of Biostatistics.  Wiley, New York.  ISBN 0-471-97576-1.  s 2154 - 2160
  • Borgan, Ørnulf (1998). Nelson-Aalen estimator, In Peter Armitage & Theodore Colton (ed.),  Encyclopedia of Biostatistics.  Wiley, New York.  ISBN 0-471-97576-1.  s 2967 - 2972
  • Borgan, Ørnulf (1989). Discussion contribution to E. Arjas' paper "Survival models and martingale dynamics". Scandinavian Journal of Statistics.  ISSN 0303-6898.  16, s 214- 215

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Publisert 13. nov. 2010 11:38 - Sist endret 6. des. 2016 13:07