Ørnulf Borgan

Professor Emeritus
Image of Ørnulf Borgan
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Room 817
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Visiting address NH Abel's house Moltke Moes vei 35 0851 Oslo
Postal address P.O. Box 1053 Blindern 0316 Oslo Norway

Research interests

  • Survival and event history analysis

  • Case-control designs

Professional background

Ørnulf Borgan has been associate professor (1984-1993) and professor (1993-2020) in statistics at the Department of Mathematics, University of Oslo. He is now professor emeritus. Borgan's main research interest is survival and event history analysis, with a particular emphasis on methodology based on counting processes, and case-control studies. He has published a number of papers about these themes.  He is co-author of the monographs Statistical Models Based on Counting Processes (Springer, 1993) and Survival and Event History Analysis: A Process Point of View (Springer, 2008) and one of the editors of Handbook of Statistical Methods for Case-Control Studies (Chapman and Hall, 2018). Borgan has been associate editor of Annals of Statistics (1998-2003), Scandinavian Journal of Statistics (1997-2003), and Biometrical Journal (2013-2017), and in the period 2007-2009 he was together with Bo Lindqvist editor-in-chief of Scandinavian Journal of Statistics

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Curriculum vitae  

 

 

Publications

  • Kvamme, Håvard & Borgan, Ørnulf (2021). Continuous and discrete-time survival prediction with neural networks. Lifetime Data Analysis. ISSN 1380-7870. 27(4), p. 710–736. doi: 10.1007/s10985-021-09532-6.
  • Lingjærde, Camilla; Lien, Tonje G.; Borgan, Ørnulf; Bergholtz, Helga & Glad, Ingrid K. (2021). Tailored graphical lasso for data integration in gene network reconstruction. BMC Bioinformatics. ISSN 1471-2105. 22(1). doi: 10.1186/s12859-021-04413-z.
  • Nedkvitne, Eirik Nøst; Borgan, Ørnulf; Eriksen, Dag Øistein & Rui, Haakon Marius Vatten (2021). Variation in chemical composition of MSWI fly ash and dry scrubber residues. Waste Management. ISSN 0956-053X. 126, p. 623–631. doi: 10.1016/j.wasman.2021.04.007.
  • Riiser, Even Sannes; Haverkamp, Thomas Hendricus Augustus; Varadharajan, Srinidhi; Borgan, Ørnulf; Jakobsen, Kjetill Sigurd & Jentoft, Sissel [Show all 7 contributors for this article] (2020). Metagenomic Shotgun Analyses Reveal Complex Patterns of Intra- and Interspecific Variation in the Intestinal Microbiomes of Codfishes. Applied and Environmental Microbiology. ISSN 0099-2240. 86(6), p. 1–16. doi: 10.1128/AEM.02788-19.
  • Pladsen, Arne Valebjørg; Nilsen, Gro; Rueda, Oscar M.; Aure, Miriam Ragle; Borgan, Ørnulf & Liestøl, Knut [Show all 18 contributors for this article] (2020). DNA copy number motifs are strong and independent predictors of survival in breast cancer. Communications Biology. ISSN 2399-3642. 3. doi: 10.1038/s42003-020-0884-6. Full text in Research Archive
  • Kvamme, Håvard; Borgan, Ørnulf & Scheel, Ida (2019). Time-to-Event Prediction with Neural Networks and Cox Regression. Journal of machine learning research. ISSN 1532-4435. 20(129), p. 1–30. Full text in Research Archive
  • Riiser, Even Sannes; Haverkamp, Thomas Hendricus Augustus; Varadharajan, Srinidhi; Borgan, Ørnulf; Jakobsen, Kjetill Sigurd & Jentoft, Sissel [Show all 7 contributors for this article] (2019). Switching on the light: using metagenomic shotgun sequencing to characterize the intestinal microbiome of Atlantic cod. Environmental Microbiology. ISSN 1462-2912. 21(7), p. 2576–2594. doi: 10.1111/1462-2920.14652. Full text in Research Archive
  • Borgan, Ørnulf & Keilman, Nico (2019). Do Japanese and Italian Women Live Longer than Women in Scandinavia? European Journal of Population. ISSN 0168-6577. 35(1), p. 87–99. doi: 10.1007/s10680-018-9468-2. Full text in Research Archive
  • Riiser, Even Sannes; Haverkamp, Thomas Hendricus Augustus; Borgan, Ørnulf; Jakobsen, Kjetill Sigurd; Jentoft, Sissel & Star, Bastiaan (2018). A single vibrionales 16S rRNA oligotype dominates the intestinal microbiome in two geographically separated Atlantic cod populations. Frontiers in Microbiology. ISSN 1664-302X. 9. doi: 10.3389/fmicb.2018.01561. Full text in Research Archive
  • Ergon, Torbjørn; Borgan, Ørnulf; Nater, Chloé Rebecca & Vindenes, Yngvild (2018). The utility of mortality hazard rates in population analyses. Methods in Ecology and Evolution. ISSN 2041-210X. 9, p. 2046–2056. doi: 10.1111/2041-210X.13059.
  • Borgan, Ørnulf (2018). Nested Case-Control Studies: A Counting Process Approach. In Borgan, Ørnulf; Breslow, Norman E.; Chatterjee, Nilanjan; Gail, Mitchell H.; Scott, Alastair & Wild, Christopher J. (Ed.), Handbook of Statistical Methods for Case-Control Studies. CRC Press. ISSN 978-1-4987-6858-0. p. 329–349.
  • Borgan, Ørnulf & Samuelsen, Sven Ove (2018). Cohort Sampling for Time-to-Event Data: An Overview. In Borgan, Ørnulf; Breslow, Norman E.; Chatterjee, Nilanjan; Gail, Mitchell H.; Scott, Alastair & Wild, Christopher J. (Ed.), Handbook of Statistical Methods for Case-Control Studies. CRC Press. ISSN 978-1-4987-6858-0. p. 285–301.
  • Lien, Tonje Gulbrandsen; Borgan, Ørnulf; Reppe, Sjur; Gautvik, Kaare M & Glad, Ingrid Kristine (2018). Integrated analysis of DNA-methylation and gene expression using high-dimensional penalized regression: a cohort study on bone mineral density in postmenopausal women. BMC Medical Genomics. ISSN 1755-8794. 11(24). doi: 10.1186/s12920-018-0341-2. Full text in Research Archive
  • Borgan, Ørnulf (2015). Aalen–Johansen Estimator. In Balakrishnan, N.; Brandimarte, Paolo; Everitt, Brian S.; Molenberghs, Geert; Piegorsch, Walter W. & Ruggeri, Fabrizio (Ed.), Wiley StatsRef: Statistics Reference Online. John Wiley & Sons. ISSN 9781118445112.
  • 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), p. 696–703. doi: 10.1111/biom.12308.
  • 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), p. 3866–3887. doi: 10.1002/sim.6598.
  • 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. Full text in Research Archive
  • Borgan, Ørnulf & Keogh, Ruth (2015). Nested case–control studies: should one break the matching? Lifetime Data Analysis. ISSN 1380-7870. 21(4), p. 517–541. doi: 10.1007/s10985-015-9319-y.
  • 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. p. 58–71. doi: 10.1080/03461238.2011.636502.
  • 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 Silvestrov, Dmitrii & Martin-Löf, Anders (Ed.), Modern Problems in Insurance Mathematics. Springer. ISSN 978-3-319-06652-3. p. 171–186. doi: 10.1007/978-3-319-06653-0_11.
  • 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), p. 637–652. doi: 10.1515/sagmb-2013-0016.
  • Borgan, Ørnulf & Samuelsen, Sven Ove (2013). Nested Case-Control and Case-Cohort Studies. In Klein, John P; van Houwelingen, Hans C; Ibrahim, Joseph G & Scheike, Thomas H (Ed.), Handbook of Survival Analysis. CRC Press. ISSN 9781466555662. p. 343–367.
  • Paulsen, Jonas; Lien, Tonje Gulbrandsen; Sandve, Geir Kjetil; Holden, Lars; Borgan, Ørnulf & Glad, Ingrid Kristine [Show all 7 contributors for this article] (2013). Handling realistic assumptions in hypothesis testing of 3D co-localization of genomic elements. Nucleic Acids Research (NAR). ISSN 0305-1048. 41(10), p. 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 1742-5689. 8(62), p. 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), p. 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), p. 445–460. doi: 10.1007/s10985-010-9188-3.
  • 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. Full text in Research Archive
  • 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), p. 1–28.
  • 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, p. 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, p. 179–195. doi: 10.1007/s10985-007-9076-7.
  • Borgan, Ørnulf (2007). Event history analysis: An overview and some areas of current research. In Østreng, Willy (Eds.), Consilience. Centre for Advanced Study at the Norwegian Academy of Science and Letters. ISSN 978-82-996367-4-2. p. 60–64.
  • Borgan, Ørnulf & Langholz, Bryan (2007). Using martingale residuals to assess goodness-of-fit for sampled risk set data. In Nair, Vijay (Eds.), Advances in statistical modeling and inference. Essays in honor of Kjell A. Doksum. World Scientific. ISSN 981-270-369-1. p. 65–90.
  • Gunnes, Nina; Borgan, Ørnulf & Aalen, Odd O. (2007). Estimating stage occupation probabilities in non-Markov models. Lifetime Data Analysis. ISSN 1380-7870. 13, p. 211–240. doi: 10.1007/s10985-007-9034-4.
  • 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, p. 53–69. doi: 10.1111/j.1467-9469.2006.00525.x.
  • Langerod, A; Zhao, H; Borgan, Ørnulf; Nesland, Jahn M; Bukholm, IR & Ikdahl, T [Show all 9 contributors for this article] (2007). TP53 mutation status and gene expression profiles are powerful prognostic markers of breast cancer. Breast Cancer Research. ISSN 1465-5411. 9. doi: 10.1186/bcr1675.
  • Bøvelstad, Hege; Nygård, Ståle; Størvold, Hege Leite; Aldrin, Magne; Borgan, Ørnulf & Frigessi, Arnoldo [Show all 7 contributors for this article] (2007). Predicting survival from microarray data - a comparative study. Bioinformatics. ISSN 1367-4803. 23, p. 2080–2087. doi: 10.1093/bioinformatics/btm305.
  • 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.
  • 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, p. 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, p. 143–167.
  • 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, p. 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), p. 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, p. 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, p. 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, p. 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, p. 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, p. 345–363.
  • Borgan, Ørnulf & Langholz, Bryan (1998). Risk set sampling for proportional hazards models. In Everitt, Brian S. & Dunn, Graham (Ed.), Statistical Analysis of Medical Data: New Developments. Arnold, London. ISSN 0-340-67775-9. p. 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, p. 690–697.
  • Langholz, Bryan & Borgan, Ørnulf (1997). Estimation of absolute risk from nested case-control data. Biometrics. ISSN 0006-341X. 53, p. 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, p. 315–328.
  • Langholz, Bryan & Borgan, Ørnulf (1995). Counter-matching: A stratified nested case-control sampling method. Biometrika. ISSN 0006-3444. 82, p. 69–79.
  • 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, p. 1749–1778.
  • Borgan, Ørnulf & Langholz, Bryan (1993). Nonparametric estimation of relative mortality from nested case-control studies. Biometrics. ISSN 0006-341X. 49, p. 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, p. 35–41.
  • 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, p. 886–891.
  • 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, p. 19–60.
  • 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, p. 221–233.
  • Borgan, Ørnulf & Ramalu-Hansen, Henrik (1985). Demographic incidence rates and estimation of intensities with incomplete information. Annals of Statistics. ISSN 0090-5364. 13, p. 564–582.
  • Andersen, Per Kragh & Borgan, Ørnulf (1985). Counting process models for life history data (with discussion). Scandinavian Journal of Statistics. ISSN 0303-6898. 12, p. 97–158.
  • Borgan, Ørnulf; Liestøl, Knut & Ebbesen, Peter (1984). Efficiencies of experimental designs for an illness-death model. Biometrics. ISSN 0006-341X. 40, p. 627–638.
  • 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, p. 1–16.
  • Ebbesen, Peter; Borgan, Ørnulf & Liestøl, Knut (1983). Decreasing luekemia risk in old AKR mice. Experimental Gerontology. ISSN 0531-5565. 18, p. 347–353.
  • 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, p. 183–185.
  • 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, p. 219–258.
  • 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, p. 35–41.
  • Borgan, Ørnulf (1981). Applications of non-homogeneous Markov chains to medical studies. Nonparametric analysis for prospective and retrospective data. In Victor, N; Lehmacher, W & van Eimeren, W (Ed.), Explorative Datenanalyse, Frühjahrstagung der GMDS München, 1980, Proceedings. Springer. ISSN 3540102817. p. 102–115.
  • Borgan, Ørnulf (1981). A nonasymptotic criterion for the evaluation of automobile bonus systems. Scandinavian Actuarial Journal. ISSN 0346-1238. p. 165–178.
  • 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, p. 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, p. 101–106.
  • Borgan, Ørnulf (1979). On the theory of moving average graduation. Scandinavian Actuarial Journal. ISSN 0346-1238. p. 83–105.

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  • Borgan, Ørnulf; Borge, Inger Christin; Engeseth, John; Heir, Odd; Moe, Håvard & Norderhaug, Tea Toft [Show all 7 contributors for this article] (2021). Matematikk S1. Aschehoug & Co. ISBN 9788203408946. 375 p.
  • Borgan, Ørnulf; Borge, Inger Christin; Engeseth, John; Heir, Odd; Moe, Håvard & Norderhaug, Tea Toft [Show all 7 contributors for this article] (2021). Matematikk R1. Aschehoug & Co. ISBN 9788203408847. 414 p.
  • Borgan, Ørnulf; Breslow, Norman E.; Chatterjee, Nilanjan; Gail, Mitchell H.; Scott, Alastair & Wild, Christopher J. (2018). Handbook of Statistical Methods for Case-Control Studies. CRC Press. ISBN 978-1-4987-6858-0. 536 p.
  • 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 p.
  • Andersen, Per; Borgan, Ørnulf; Gill, Richard D. & Keiding, Niels (1993). Statistical models based on counting processes. Springer-Verlag, New York. ISBN 0172-7397. 767 p.

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  • 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), p. 545–545.
  • Borgan, Ørnulf & Bo H., Lindqvist (2007). Editorial. Scandinavian Journal of Statistics. ISSN 0303-6898. 34(1), p. 1–2.
  • Senn, S; Keiding, N; Andrews, N; Musonda, P; Hocine, M & Moreau, T [Show all 16 contributors for this article] (2006). Semiparametric analysis of case series data - Discussion. The Journal of the Royal Statistical Society, Series C (Applied Statistics). ISSN 0035-9254. 55, p. 581–594.
  • Borgan, Ørnulf; Aalen, Odd O. & Røsjø, Bjarne (2005). Bedre statistikk kan redde flere liv. [Newspaper]. Informasjonsblad nr 2/2005. Senter for grunnforskning.
  • Borgan, Ørnulf (2004). Sverdrup, Erling (1917-1994). In Teugels, Jozef & Sund, Ståle (Ed.), Encyclopedia of Actuarial Science. John Wiley & Sons. ISSN 0-470-84676-3. p. 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), p. 1084–1085.
  • 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, p. 2053–2054.
  • Borgan, Ørnulf (2001). Cohort sampling in epidemiological studies. 53rd Session of The International Statistical Institute.
  • Borgan, Ørnulf (1999). Nested case-control sampling. In Kotz, Samuel; Read, CB & Banks, DL (Ed.), Encyclopedia of Statistical Sciences. Wiley, New York. p. 523–528.
  • Borgan, Ørnulf (1999). Countermatched sampling. In Kotz, Samuel; Read, CB & Banks, DL (Ed.), Encyclopedia of Statistical Sciences. Wiley, New York. p. 129–131.
  • Borgan, Ørnulf (1999). Review of "Applied survival analysis" by C.T. Lee. Statistics in Medicine. ISSN 0277-6715. 18, p. 492–494.
  • Borgan, Ørnulf (1998). Nelson-Aalen estimator. In Armitage, Peter & Colton, Theodore (Ed.), Encyclopedia of Biostatistics. Wiley, New York. ISSN 0-471-97576-1. p. 2967–2972.
  • Borgan, Ørnulf (1998). Kaplan-Meier estimator. In Armitage, Peter & Colton, Theodore (Ed.), Encyclopedia of Biostatistics. Wiley, New York. ISSN 0-471-97576-1. p. 2154–2160.
  • Borgan, Ørnulf (1998). Aalen-Johansen estimator. In Armitage, Peter & Colton, Theodore (Ed.), Encyclopedia of Biostatistics. Wiley, New York. ISSN 0-471-97576-1. p. 5–10.
  • Borgan, Ørnulf (1989). Discussion contribution to E. Arjas' paper "Survival models and martingale dynamics". Scandinavian Journal of Statistics. ISSN 0303-6898. 16, p. 214–215.
  • Günther, Clara-Cecilie; Tvete, Ingunn Fride; Aas, Kjersti & Borgan, Ørnulf (2010). Modellering og prediksjon av kundeavgang. Norsk Regnesentral.

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Published Nov. 30, 2010 11:20 PM - Last modified Jan. 6, 2022 12:04 PM