Petter Laake

Professor Emeritus - Department of Biostatistics
Image of Petter Laake
Norwegian version of this page
Phone +47-22851235
Room 1218
Username
Visiting address Sognsvannsveien 9 Domus Medica 0372 OSLO

Academic interests

  • Statistical methods for the medical sciences
  • Research methods
  • Applications of biostatistics
  • Teaching

Courses taught

  • Research methods
  • Courses in biostatistics for PhD-students
  • Leader of Block 1: Statistics, health, biology and society in Module 1 of Oslo 2014.

Background

Education

  • M.Sc. (Statistics) University of Oslo 1973
  • Dr.philos. (Statistics) University of Oslo 1988

Academic positions

  • 1973-1979 Central Bureau of Statistics.
  • 1980-1988: University of Oslo, Department of Statistics and Computing, Associate Professor
  • 1989-1991 University of Oslo, Section of Medical Statistics, Research Advisor (Norwegian Research Council)
  • 1992-2000 University of Oslo, Section of Medical Statistics, Professor
  • 2001-2009 University of Oslo, Faculty of Medicine, Coordinator of the Doctoral Programme
  • 2010- University of Oslo, Department of Biostatistics, Professor, Institute of Basic Medical Sciences
Tags: Biostatistics

Publications

  • Bærug, Anne Bergljot; Laake, Petter; Løland, Beate Fossum; Tylleskär, Thorkild; Tufte, Elisabeth & Fretheim, Atle (2017). Explaining socioeconomic inequalities in exclusive breast feeding in Norway. Archives of Disease in Childhood.  ISSN 0003-9888.  102(8), s 708- 714 . doi: 10.1136/archdischild-2016-312038
  • Paur, Ingvild; Lilleby, Wolfgang; Bøhn, Siv Kjølsrud; Hulander, Erik; Klein, Willibrord; Vlatkovic, Ljiljana; Axcrona, Karol; Bolstad, Nils; Bjøro, Trine; Laake, Petter; Tasken, Kristin Austlid; Svindland, Aud; Eri, Lars Magne; Brennhovd, Bjørn; Carlsen, Monica Hauger; Fosså, Sophie Dorothea; Smeland, Sigbjørn; Karlsen, Anette Solli & Blomhoff, Rune (2016). Tomato-based randomized controlled trial in prostate cancer patients: Effect on PSA. Clinical Nutrition.  ISSN 0261-5614.  36(3), s 672- 679 . doi: 10.1016/j.clnu.2016.06.014
  • Buonaccorsi, John P.; Dalen, Ingvild; Laake, Petter; Hjartåker, Anette; Engeset, Dagrun & Thoresen, Magne (2015). Sensitivity of regression calibration to non-perfect validation data with application to the Norwegian Women and Cancer Study. Statistics in Medicine.  ISSN 0277-6715.  34(8), s 1389- 1403 . doi: 10.1002/sim.6420
  • Fagerland, Morten; Lydersen, Stian & Laake, Petter (2015). Recommended confidence intervals for two independent binomial proportions. Statistical Methods in Medical Research.  ISSN 0962-2802.  24(2), s 224- 254 . doi: 10.1177/0962280211415469
  • Birkeflet, Oddveig; Laake, Petter & Vøllestad, Nina Køpke (2014). Poor multi-rater reliability in TCM pattern diagnoses and variation in the use of symptoms to obtain a diagnosis. Acupuncture in Medicine.  ISSN 0964-5284.  32(4), s 325- 332 . doi: 10.1136/acupmed-2013-010473
  • Buonaccorsi, John P.; Laake, Petter & Veierød, Marit Bragelien (2014). On the power of the Cochran-Armitage test for trend in the presence of misclassification. Statistical Methods in Medical Research.  ISSN 0962-2802.  3, s 218- 243
  • Buonaccorsi, John P.; Laake, Petter & Veierød, Marit Bragelien (2014). On the power of the Cochran-Armitage test for trend in the presence of misclassification. Statistical Methods in Medical Research.  ISSN 0962-2802.  23(3), s 218- 243 . doi: 10.1177/0962280211406424
  • Fagerland, Morten; Lydersen, Stian & Laake, Petter (2014). Recommended tests and confidence intervals for paired binomial proportions. Statistics in Medicine.  ISSN 0277-6715.  33(16), s 2850- 2875 . doi: 10.1002/sim.6148
  • Lehre, Anne- Catherine W G; Hansen, Arvid Hedley; Lehre, Knut Petter Dæhlin & Laake, Petter (2014). Effects of the 2003 Quality Reform on Gender Gaps in Student Learning Outcomes in Norwegian Higher Education. Scandinavian Journal of Educational Research.  ISSN 0031-3831.  58(3), s 315- 336 . doi: 10.1080/00313831.2012.732602
  • Lehre, Anne- Catherine W G; Laake, Petter & Sexton, Joseph Andrew (2014). Using Quantile Distance Functions to Assess Inter- and Intrasex Variability in PISA Achievement Scores, In Rolf Strietholt; Wilfred Bos; Jan-Eric Gustafsson & Monica Rosén (ed.),  Educational Policy Evaluation through International Comparative Assessments.  Waxmann Verlag.  ISBN 978-3-8309-3091-4.  Part B: Empirical Studies.  s 177 - 190
  • Fagerland, Morten; Lydersen, Stian & Laake, Petter (2013). The McNemar test for binary matched-pairs data: mid-p and asymptotic are better than exact conditional. BMC Medical Research Methodology.  ISSN 1471-2288.  13 . doi: 10.1186/1471-2288-13-91
  • Karlsen, Anette; Svendsen, Mette; Seljeflot, Ingebjørg; Laake, Petter; Duttaroy, Asim K.; Drevon, Christian A; Arnesen, Harald; Tonstad, Serena & Blomhoff, Rune (2013). Kiwifruit decreases blood pressure and whole-blood platelet aggregation in male smokers. Journal of Human Hypertension.  ISSN 0950-9240.  27(2), s 126- 130 . doi: 10.1038/jhh.2011.116
  • Lehre, Anne- Catherine W G; Laake, Petter & Sexton, Joseph (2013). Differences in birth weight by sex using adjusted quantile distance functions. Statistics in Medicine.  ISSN 0277-6715.  32(17), s 2962- 2970 . doi: 10.1002/sim.5744
  • Ringdal, Kjetil G.; Skaga, Nils Oddvar; Steen, Petter Andreas; Hestnes, Morten; Laake, Petter; Jones, J. Mary & Lossius, Hans Morten (2013). Classification of comorbidity in trauma: The reliability of pre-injury ASA physical status classification. Injury.  ISSN 0020-1383.  44(1), s 29- 35 . doi: 10.1016/j.injury.2011.12.024
  • Birkeflet, Oddveig; Laake, Petter & Vøllestad, Nina Køpke (2012). Traditional Chinese medicine patterns and recommended acupuncture points in infertile and fertile women. Acupuncture in Medicine.  ISSN 0964-5284.  30(1), s 12- 16 . doi: 10.1136/acupmed-2011-010089
  • Fagerland, Morten; Eide, Geir Egil & Laake, Petter (2012). Linear regression, In Marit Bragelien Veierød; Stian Lydersen & Petter Laake (ed.),  Medical statistics in clinical and epidemiological research.  Gyldendal Akademisk.  ISBN 9788205399594.  Kapittel 4.  s 126 - 166
  • Kristoffersen, Doris Tove; Helgeland, Jon; Clench-Aas, Jocelyne; Laake, Petter & Veierød, Marit Bragelien (2012). Comparing hospital mortality - how to count does matter for patients hospitalized for acute myocardial infarction (AMI), stroke and hip fracture. BMC Health Services Research.  ISSN 1472-6963.  12 . doi: 10.1186/1472-6963-12-364
  • Lydersen, Stian; Fagerland, Morten & Laake, Petter (2012). Categorical data and contingency tables, In Marit Bragelien Veierød; Stian Lydersen & Petter Laake (ed.),  Medical statistics in clinical and epidemiological research.  Gyldendal Akademisk.  ISBN 9788205399594.  Kapittel 2.  s 48 - 89
  • Sexton, Joseph; Blomhoff, Rune; Karlsen, Anette & Laake, Petter (2012). Adaptive combination of dependent tests. Computational Statistics & Data Analysis.  ISSN 0167-9473.  56(6), s 1935- 1943 . doi: 10.1016/j.csda.2011.11.018
  • Sexton, Joseph & Laake, Petter (2012). Boosted coefficient models. Statistics and computing.  ISSN 0960-3174.  22(4), s 867- 876 . doi: 10.1007/s11222-011-9253-0
  • Veierød, Marit Bragelien; Lydersen, Stian & Laake, Petter (2012). Design and analysis, In Marit Bragelien Veierød; Stian Lydersen & Petter Laake (ed.),  Medical statistics in clinical and epidemiological research.  Gyldendal Akademisk.  ISBN 9788205399594.  kapittel 1.  s 23 - 44
  • Birkeflet, Oddveig; Laake, Petter & Vøllestad, Nina Køpke (2011). Low inter-rater reliability in traditional Chinese medicine for female infertility. Acupuncture in Medicine.  ISSN 0964-5284.  29(1), s 51- 57 . doi: 10.1136/aim.2010.003186
  • Haj Yasein, Nadia Nabil; Vindedal, Gry Fluge; Eilert-Olsen, Martine; Gundersen, Georg Andreas; Skare, Øivind; Laake, Petter; Klungland, Arne; Thoren, Anna; Burkhardt, John Michael; Ottersen, Ole Petter & Nagelhus, Erlend Arnulf (2011). Glial-conditional deletion of aquaporin-4 (Aqp4) reduces blood-brain water uptake and confers barrier function on perivascular astrocyte endfeet. Proceedings of the National Academy of Sciences of the United States of America.  ISSN 0027-8424.  108(43), s 17815- 17820 . doi: 10.1073/pnas.1110655108
  • Karlsen, Anette; Svendsen, Mette; Seljeflot, Ingebjørg; Sommernes, Mary-Ann; Sexton, Joseph; Brevik, Asgeir; Erlund, Iris; Serafini, Mauro; Bastani, Nasser Ezzatkhah; Remberg, Siv Fagertun; Borge, Grethe Iren Andersen; Carlsen, Monica Hauger; Bøhn, Siv Kjølsrud; Myhrstad, Mari; Dragsted, Lars; Duttaroy, Asim K.; Haffner, Karin; Laake, Petter; Drevon, Christian A; Arnesen, Harald; Collins, Andrew Richard; Tonstad, Serena & Blomhoff, Rune (2011). Compliance, tolerability and safety of two antioxidant-rich diets: a randomised controlled trial in male smokers. British Journal of Nutrition.  ISSN 0007-1145.  106(4), s 557- 571 . doi: 10.1017/S0007114511000353
  • Lehre, Anne- Catherine W G; Rowley, Nicole; Zhou, Yun; Holmseth, Silvia; Guo, Chungang; Holen, Torgeir; Hua, Rui; Laake, Petter; Olofsson, Anna Maria; Poblete-Naredo, Irais; Rusakov, Dimitri A.; Madsen, Karsten K.; Clausen, Rasmus P.; Schousboe, Arne; White, H. Steve & Danbolt, Niels Christian (2011). Deletion of the betaine-GABA transporter (BGT1; slc6a12) gene does not affect seizure thresholds of adult mice. Epilepsy Research.  ISSN 0920-1211.  95(1-2), s 70- 81 . doi: 10.1016/j.eplepsyres.2011.02.014
  • Bøhn, Siv Kjølsrud; Myhrstad, Mari Charlotte; Thoresen, Magne; Holden, Marit; Karlsen, Anette; Tunheim, Siv Haugen; Erlund, Iris; Svendsen, Mette; Seljeflot, Ingebjørg; Moskaug, Jan Øivind; Duttaroy, Asim K.; Laake, Petter; Arnesen, Harald; Tonstad, Serena; Collins, Andrew Richard; Drevon, Christian A & Blomhoff, Rune (2010). Blood cell gene expression associated with cellular stress defense is modulated by antioxidant-rich food in a randomised controlled clinical trial of male smokers. BMC Medicine.  ISSN 1741-7015.  8 . doi: 10.1186/1741-7015-8-54
  • Frøslie, Kathrine Frey; Røislien, Jo; Laake, Petter; Henriksen, Tore; Qvigstad, Elisabeth & Veierød, Marit Bragelien (2010). Categorisation of continuous exposure variables revisited. A response to the Hyperglycaemia and Adverse Pregnancy Outcome (HAPO) Study. BMC Medical Research Methodology.  ISSN 1471-2288.  10 . doi: 10.1186/1471-2288-10-103
  • Karlsen, Anette; Paur, Ingvild; Bøhn, Siv Kjølsrud; Sakhi, Amrit Kaur; Borge, Grethe iren andersen; Serafini, Mauro; Erlund, Iris; Laake, Petter; Tonstad, Serena & Blomhoff, Rune (2010). Bilberry juice modulates plasma concentration of NF-kappa B related inflammatory markers in subjects at increased risk of CVD. European Journal of Nutrition.  ISSN 1436-6207.  49(6), s 345- 355 . doi: 10.1007/s00394-010-0092-0
  • Kjelsberg, Ellen & Laake, Petter (2010). Is the high mortality risk in sentenced offenders independent of previous imprisonment?. European Journal of Epidemiology.  ISSN 0393-2990.  25(4), s 237- 243 . doi: 10.1007/s10654-010-9436-6
  • Dalen, Ingvild; Buonaccorsi, JP; Sexton, Joseph; Laake, Petter & Thoresen, Magne (2009). Correction for misclassification of a categorized exposure in binary regression using replication data. Statistics in Medicine.  ISSN 0277-6715.  28(27), s 3386- 3410 . doi: 10.1002/sim.3712
  • Haglerød, Camilla Margrete; Kapica, Aida; Boulland, Jean-Luc; Hussain, Suleman; Holen, Torgeir; Skare, Øivind; Laake, Petter; Ottersen, Ole Petter; Haug, Finn-Mogens Smejda & Davanger, Svend (2009). Protein interacting with C kinase 1 (PICK1) and GluR2 are associated with presynaptic plasma membrane and vesicles in hippocampal excitatory synapses. Neuroscience.  ISSN 0306-4522.  158(1), s 242- 252 . doi: 10.1016/j.neuroscience.2008.11.029
  • Kaufmann, Walter A.; Ferraguti, Francesco; Fukazawa, Yugo; Kasugai, Yu; Shigemoto, Ryuichi; Laake, Petter; Sexton, Joseph A.; Ruth, Peter; Wietzorrek, Georg; Knaus, Hans Gunther; Storm, Johan Frederik & Ottersen, Ole Petter (2009). Large-Conductance Calcium-Activated Potassium Channels in Purkinje Cell Plasma Membranes Are Clustered at Sites of Hypolemmal Microdomains. Journal of Comparative Neurology.  ISSN 0021-9967.  515(2), s 215- 230 . doi: 10.1002/cne.22066
  • Lehre, Anne- Catherine W G; Hansen, Arvid Hedley & Laake, Petter (2009). Gender and the 2003 Quality Reform in higher education in Norway. Higher Education.  ISSN 0018-1560.  58(5), s 585- 597 . doi: 10.1007/s10734-009-9211-3
  • Lehre, Anne- Catherine W G; Lehre, Knut Petter Dæhlin; Laake, Petter & Danbolt, Niels Christian (2009). Greater Intrasex Phenotype Variability in Males Than in Females is a Fundamental Aspect of the Gender Differences in Humans. Developmental Psychobiology.  ISSN 0012-1630.  51(2), s 198- 206 . doi: 10.1002/dev.20358
  • Lydersen, Stian; Fagerland, MW & Laake, P (2009). Recommended tests for association in 2 x 2 tables . Statistics in Medicine.  ISSN 0277-6715.  28(7), s 1159- 1175 . doi: 10.1002/sim.3531
  • Parr, CL; Hjartåker, Anette; Hjartaker, A; Laake, Petter; Lund, Eiliv; Veierod, MB & Veierød, Marit Bragelien (2009). Recall Bias in Melanoma Risk Factors and Measurement Error Effects: A Nested Case-Control Study Within the Norwegian Women and Cancer Study. American Journal of Epidemiology.  ISSN 0002-9262.  169(3), s 257- 266 . doi: 10.1093/aje/kwn363
  • Sexton, Joseph & Laake, Petter (2009). Standard errors for bagged and random forest estimators. Computational Statistics & Data Analysis.  ISSN 0167-9473.  53(3), s 801- 811 . doi: 10.1016/j.csda.2008.08.007
  • Sexton, Joseph & Laake, Petter (2009). Stochastic Approximation Boosting for Incomplete Data Problems. Biometrics.  ISSN 0006-341X.  65(4), s 1156- 1163 . doi: 10.1111/j.1541-0420.2009.01202.x
  • Utvik, Jo Kristian; Haglerød, Camilla Margrete; Mylonakou, Maria-Niki; Holen, Torgeir; Kropf, Michel; Hirling, H; Skare, Øivind; Laake, Petter; Ottersen, Ole Petter; Haug, Finn-Mogens Smejda & Davanger, Svend (2009). Neuronal enriched endosomal protein of 21 kDa colocalizes with glutamate receptor subunit GLUR2/3 at the postsynaptic membrane. Neuroscience.  ISSN 0306-4522.  158(1), s 96- 104 . doi: 10.1016/j.neuroscience.2008.11.030
  • Benestad, Haakon Breien & Laake, Petter (2008). Forskning: metode og planlegging, I: Petter Laake; Haakon Breien Benestad & Bjørn Reino Olsen (red.),  Forskning i medisin og biofag. 2. utgave.  Gyldendal Akademisk.  ISBN 978-82-05-38487-3.  Kapittel 4.
  • Karlsen, Anette; Svendsen, Mette; Brevik, Asgeir; Bøhn, Siv K; Myhrstad, Mari C.W.; Thoresen, Magne; Seljeflot, Ingebjørg; Arnesen, Harald; Erlund, Iris; Serafini, Mauro; Remberg, Siv Fagertun; Haffner, Karin; Borge, Grethe Iren Andersen; Dragsted, Lars; Laake, Petter; Drevon, Christian A.; Collins, Andrew; Tonstad, Serena & Blomhoff, Rune (2008). Dietary intake of antioxidant-rich foods increase plasma antioxidants, enhance DNA repair capacity and reduce blood pressure in smoking, middle-aged men, In  PhD Thesis.  Universitetet i Oslo, Institutt for ernæringsforskning.  faglig_bok_institusjon.
  • Laake, Petter & Egeland, Thore (2008). Statistisk analyse av kategoriske data, I: Petter Laake; Haakon Breien Benestad & Bjørn Reino Olsen (red.),  Forskning i medisin og biofag. 2. utgave.  Gyldendal Akademisk.  ISBN 978-82-05-38487-3.  Kapittel 13.
  • Laake, Petter & Skovlund, Eva (2008). Statistisk analyse av kontinuerlige data, I: Petter Laake; Haakon Breien Benestad & Bjørn Reino Olsen (red.),  Forskning i medisin og biofag. 2. utgave.  Gyldendal Akademisk.  ISBN 978-82-05-38487-3.  Kapittel 12.
  • Olsen, Bjørn Reino; Laake, Petter & Ottersen, Ole Petter (2008). Søknad om forskningsmidler, I: Petter Laake; Haakon Breien Benestad & Bjørn Reino Olsen (red.),  Forskning i medisin og biofag. 2. utgave.  Gyldendal Akademisk.  ISBN 978-82-05-38487-3.  Kapittel 18.
  • Parr, CL; Hjartaker, A; Hjartåker, Anette; Scheel, Ida; Lund, Eiliv; Laake, Petter; Veierød, Marit Bragelien & Veierod, MB (2008). Comparing methods for handling missing values in food-frequency questionnaires and proposing k nearest neighbours imputation: effects on dietary intake in the Norwegian Women and Cancer study (NOWAC). Public Health Nutrition.  ISSN 1368-9800.  11, s 361- 370 . doi: 10.1017/S1368980007000365
  • Sexton, Joseph & Laake, Petter (2008). LogitBoost with errors-in-variables. Computational Statistics & Data Analysis.  ISSN 0167-9473.  52 . doi: 10.1016/j.csda.2007.09.004
  • Thelle, Dag Steinar & Laake, Petter (2008). Epidemiologisk forskning: begreper og metoder, I: Petter Laake; Haakon Breien Benestad & Bjørn Reino Olsen (red.),  Forskning i medisin og biofag. 2. utgave.  Gyldendal Akademisk.  ISBN 978-82-05-38487-3.  Kapittel 10.
  • Utne, Peder Heyerdahl; Thelle, Dag Steinar & Laake, Petter (2008). Kvalitetssikring av forskning, I: Petter Laake; Haakon Breien Benestad & Bjørn Reino Olsen (red.),  Forskning i medisin og biofag. 2. utgave.  Gyldendal Akademisk.  ISBN 978-82-05-38487-3.  Kapittel 17.
  • Benestad, Haakon Breien & Laake, Petter (2007). Reseach methodology: Strategies, planning and analysis, In Petter Laake; Haakon Breien Benestad & Bjørn Reino Olsen (ed.),  Research Methodology in the Medical and Biological Sciences.  Academic Press.  ISBN 978-0-12-373874-5.  4.  s 93 - 124
  • Eid, T.; Hammer, Janniche; Runden-Pran, E.; Runden, Elise; Roberg, B; Thomas, M. J.; Osen, K.; Davanger, S; Laake, Petter; Torgner, I. A.; Lee, TS; Lee, Shih W; Kim, Jung H; Spencer, D. D.; Ottersen, Ole Petter & de Lanerolle, Nihal C (2007). Increased expression of phosphate-activated glutaminase in hippocampal neurons in human mesial temporal lobe epilepsy. Acta Neuropathologica.  ISSN 0001-6322.  113(2), s 137- 152 . doi: 10.1007/s00401-006-0158-5
  • Karlsen, Anette; Retterstol, L; Laake, Petter; Knudsen, Ingvild Paur; Bøhn, Siv Kjølsrud; Sandvik, L & Blomhoff, Rune (2007). Anthocyanins inhibit nuclear factor-kappa B activation in monocytes and reduce plasma concentrations of pro-inflammatory mediators in healthy adults. Journal of Nutrition.  ISSN 0022-3166.  137, s 1951- 1954
  • Karlsen, Anette; Retterstøl, Lars; Laake, Petter; Bøhn, Siv Kjølsrud; Sandvik, Leiv & Blomhoff, Rune (2007). Effects of a daily intake of one glass of red wine on biomarkers of antioxidant status, oxidative stress and inflammation in healthy adults. e - SPEN: the European e-journal of clinical nutrition and metabolism.  ISSN 1751-4991.  2, s e127- e133
  • Laake, Petter; Egeland, Thore & Skovlund, Eva (2007). Statistical issues, In Petter Laake; Haakon Breien Benestad & Bjørn Reino Olsen (ed.),  Research Methodology in the Medical and Biological Sciences.  Academic Press.  ISBN 978-0-12-373874-5.  11.  s 311 - 364
  • Laake, Petter; Hjartåker, Anette; Thelle, Dag Steinar & Veierød, Marit Bragelien (2007). Epidemiologisk og klinisk forskning, I: Petter Laake; Anette Hjartåker; Dag Steinar Thelle & Marit Bragelien Veierød (red.),  Epidemiologiske og kliniske forskningsmetoder.  Gyldendal Akademisk.  ISBN 978-82-05-33505-9.  1.  s 33 - 44
  • Laake, Petter; Thoresen, Magne & Veierød, Marit Bragelien (2007). Målefeilsproblemer, I: Petter Laake; Anette Hjartåker; Dag Steinar Thelle & Marit Bragelien Veierød (red.),  Epidemiologiske og kliniske forskningsmetoder.  Gyldendal Akademisk.  ISBN 978-82-05-33505-9.  4.  s 128 - 168
  • Lydersen, Stian; Pradhan, Vivek; Enchaudhuri, PS; Senchaudhuri, Pralay & Laake, Petter (2007). Choice of test for association in small sample unordered r × c tables. Statistics in Medicine.  ISSN 0277-6715.  26(23), s 4328- 4343 . doi: 10.1002/sim.2839
  • Olsen, Bjørn Reino; Laake, Petter & Ottersen, Ole Petter (2007). Guide to grant applications, In Petter Laake; Haakon Breien Benestad & Bjørn Reino Olsen (ed.),  Research Methodology in the Medical and Biological Sciences.  Academic Press.  ISBN 978-0-12-373874-5.  15.  s 433 - 456
  • Parr, Christine Louise; Hjartåker, Anette; Scheel, Ida; Lund, Eiliv; Laake, Petter & Veierød, Marit Bragelien (2007). Comparing methods for handling missing values in food-frequency questionnaires and proposing k nearest neighbours imputation: effects on dietary intake in the Norwegian Women and Cancer study (NOWAC). Public Health Nutrition.  ISSN 1368-9800.
  • Sexton, Joseph & Laake, Petter (2007). Boosted regression trees with errors in variables. Biometrics.  ISSN 0006-341X.  63(2), s 586- 592 . doi: 10.1111/j.1541-0420.2006.00718.x
  • Svensson, Elisabeth; Hjartåker, Anette & Laake, Petter (2007). Hva skal måles og hvordan?, I: Petter Laake; Anette Hjartåker; Dag Steinar Thelle & Marit Bragelien Veierød (red.),  Epidemiologiske og kliniske forskningsmetoder.  Gyldendal Akademisk.  ISBN 978-82-05-33505-9.  2.  s 45 - 65
  • Thelle, Dag Steinar & Laake, Petter (2007). Epidemiology: Concepts and methods, In Petter Laake; Haakon Breien Benestad & Bjørn Reino Olsen (ed.),  Research Methodology in the Medical and Biological Sciences.  Academic Press.  ISBN 978-0-12-373874-5.  9.  s 241 - 280
  • Thoresen, Magne & Laake, Petter (2007). A simulation study of statistical tests in logistic measurement error models. Journal of Statistical Computation and Simulation.  ISSN 0094-9655.  77, s 683- 694 . doi: 10.1080/10629360600589541
  • Thoresen, Magne & Laake, Petter (2007). On the simple linear regression model with correlated measurement errors. Journal of Statistical Planning and Inference.  ISSN 0378-3758.  137, s 68- 78
  • Veierød, Marit Bragelien & Laake, Petter (2007). Regresjonsmodeller og analyse av sammenheng mellom eksponering og sykdom, I: Petter Laake; Anette Hjartåker; Dag Steinar Thelle & Marit Bragelien Veierød (red.),  Epidemiologiske og kliniske forskningsmetoder.  Gyldendal Akademisk.  ISBN 978-82-05-33505-9.  3.  s 66 - 127
  • Aamodt, Geir & Laake, Petter (2006). Statistikk i medisinsk forskning. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  (2), s 189- 189
  • Dalen, Ingvild; Buonaccorsi, John P.; Laake, Petter; Hjartåker, Anette & Thoresen, Magne (2006). Regression analysis with categorized regression calibrated exposure: some interesting findings. Emerging Themes in Epidemiology.  ISSN 1742-7622.  3(6) . doi: 10.1186/1742-7622-3-6
  • Frydenlund, Didrik Søli; Bhardwaj, A; Otsuka, T; Mylonakou, Maria-Niki; Yasumura, T; Davidson, KGV; Zeynalov, E; Skare, Øivind; Laake, Petter; Haug, Finn-Mogens Smejda; Rash, JE; Agre, P; Ottersen, Ole Petter & Amiry-Moghaddam, Mahmood Reza (2006). Temporary loss of perivascular aquaporin-4 in neocortex after transient middle cerebral artery occlusion in mice. Proceedings of the National Academy of Sciences of the United States of America.  ISSN 0027-8424.  103, s 13532- 13536

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  • Fagerland, Morten; Lydersen, Stian & Laake, Petter (2017). Statistical Analysis of Contingency Tables. CRC Press.  ISBN 978-1-4665-8817-2.  634 s.
  • Laake, Petter; Benestad, Haakon Breien & Olsen, Bjørn Reino (ed.) (2015). Research in Medical and Biological Sciences: From Planning and Preparation ot Grant Application and Publication.. Academic Press.  ISBN 978-0-12-799943-2.  566 s.
  • Veierød, Marit Bragelien; Lydersen, Stian & Laake, Petter (ed.) (2012). Medical statistics in clinical and epidemiological research. Gyldendal Akademisk.  ISBN 9788205399594.  720 s.
  • Laake, Petter; Benestad, Haakon Breien & Olsen, Bjørn Reino (red.) (2008). Forskning i medisin og biofag. 2. utgave. Gyldendal Akademisk.  ISBN 978-82-05-38487-3.  550 s.
  • Laake, Petter & Valen, Guro (2008). Fra basalmedisinsk til klinisk forskning. Gyldendal Akademisk.  ISBN 978-82-05-38487-3.  14 s.
  • Laake, Petter; Benestad, Haakon Breien & Olsen, Bjørn Reino (ed.) (2007). Research Methodology in the Medical and Biological Sciences. Academic Press.  ISBN 978-0-12-373874-5.  512 s.
  • Laake, Petter; Hjartåker, Anette; Thelle, Dag S. & Veierød, Marit B. (red.) (2007). Epidemiologiske og kliniske forskningsmetoder. Gyldendal Akademisk.  ISBN 9788205335059.  551 s.
  • Laake, Petter; Hjartåker, Anette; Thelle, Dag Steinar & Veierød, Marit Bragelien (red.) (2007). Epidemiologiske og kliniske forskningsmetoder. Gyldendal Akademisk.  ISBN 978-82-05-33505-9.  551 s.

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  • Kristoffersen, Doris Tove; Helgeland, Jon; Clench-Aas, Jocelyne; Laake, Petter & Veierød, Marit Bragelien (2016). Type I error and power for detecting hospitals with high or low 30-day mortality.
  • Benestad, Haakon Breien & Laake, Petter (2015). Research Strategies, Planning and Analysis, In Petter Laake; Haakon Breien Benestad & Bjørn Reino Olsen (ed.),  Research in Medical and Biological Sciences: From Planning and Preparation ot Grant Application and Publication..  Academic Press.  ISBN 978-0-12-799943-2.  Kapittel 4.  s 89 - 104
  • Holm, Søren; Hofmann, Bjørn & Laake, Petter (2015). Ethics and Scientific Conduct, In Petter Laake; Haakon Breien Benestad & Bjørn Reino Olsen (ed.),  Research in Medical and Biological Sciences: From Planning and Preparation ot Grant Application and Publication..  Academic Press.  ISBN 978-0-12-799943-2.  Kapittel 2.  s 43 - 70
  • Laake, Petter & Fagerland, Morten (2015). Statistical Inference, In Petter Laake; Haakon Breien Benestad & Bjørn Reino Olsen (ed.),  Research in Medical and Biological Sciences: From Planning and Preparation ot Grant Application and Publication..  Academic Press.  ISBN 978-0-12-799943-2.  Kapittel 11.  s 379 - 430
  • Olsen, Bjørn Reino; Laake, Petter & Ottersen, Ole Petter (2015). Guide to Grant Applications, In Petter Laake; Haakon Breien Benestad & Bjørn Reino Olsen (ed.),  Research in Medical and Biological Sciences: From Planning and Preparation ot Grant Application and Publication..  Academic Press.  ISBN 978-0-12-799943-2.  Kapittel 15.  s 519 - 546
  • Thelle, Dag Steinar & Laake, Petter (2015). Epidemiology, In Petter Laake; Haakon Breien Benestad & Bjørn Reino Olsen (ed.),  Research in Medical and Biological Sciences: From Planning and Preparation ot Grant Application and Publication..  Academic Press.  ISBN 978-0-12-799943-2.  Kapittel 9.  s 275 - 320
  • Benestad, Haakon Breien & Laake, Petter (2014). Dårlig tittel - dårlig manus?. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  134(4), s 382- 382 . doi: 10.4045/tidsskr.14.0143
  • Lehre, Anne- Catherine W G; Hansen, Arvid Hedley; Lehre, Knut Petter Dæhlin & Laake, Petter (2012). Gender gap in Norwegian Higher Education.
  • Lehre, Anne- Catherine W G; Laake, Petter & Danbolt, Niels Christian (2011). Sex matters: Looking into variability. The variability hypothesis, the 2003 Quality Reform in higher education in Norway, and the role of BGT1 in seizure control.
  • Lydersen, Stian; Laake, Petter & Fagerland, Morten (2011). The analysis of 2 x 2 contingency tables-yet again: Author's reply. Statistics in Medicine.  ISSN 0277-6715.  30(8), s 891- 892 . doi: 10.1002/sim.4135
  • Thelle, Dag S. & Laake, Petter (2011). Fra ammetåke til klarsyn. Forskning.no : nettavis med nyheter fra norsk og internasjonal forskning.
  • Karlsen, Anette; Lilleby, Wolfgang; Klein, Willibrord; Laake, Petter; Fosså, Sophie Dorothea; Eri, Lars Magne; Karlsen, Steinar; Smeland, Sigbjørn & Blomhoff, Rune (2010). A phase I/II randomized controlled trial investigating the effects of two dietary intervention strategies in prostate cancer patients.
  • Laake, Petter & Thelle, Dag Steinar (2010). Are mid-pregnancy androgen levels negatively associated with breastfeeding?. Acta Obstetricia et Gynecologica Scandinavica.  ISSN 0001-6349.  89(5), s 722- 723 . doi: 10.3109/00016341003657942
  • Lehre, Anne- Catherine W G; Lehre, Knut Petter Dæhlin; Hansen, Arvid Hedley; Laake, Petter & Danbolt, Niels Christian (2010). Gender: Males are more extreme.
  • Roaldset, John Olav; Gøtestam, K Gunnar; Holen, Are; Bjørkly, Stål & Laake, Petter (2010). Risk assessment of violent, suicidal and self-injurious behaviour in acute psychiatry - a bio-psycho-social approach.
  • Karlsen, Anette; Paur, Ingvild; Bøhn, Siv Kjølsrud; Sakhi, Amrit Kaur; Grethe Iren, Borge; Serafini, Mauro; Erlund, Iris; Laake, Petter; Tonstad, Serena & Blomhoff, Rune (2009). Bilberry juice modulate plasma concentration of NF- related inflammatory markers in subjects at increased risk of CVD.
  • Parr, Christine Louise; Hjartåker, Anette; Laake, Petter; Lund, Eiliv & Veierød, Marit Bragelien (2009). Recall bias in melanoma risk factors and measurement error effects: a nested case-control study within the Norwegian Women and Cancer Study. Norsk Epidemiologi, Supplement.  ISSN 0803-4206.  19, s 8- 8
  • Parr, CL; Hjartaker, A; Hjartåker, Anette; Laake, Petter; Lund, Eiliv; Veierod, MB & Veierød, Marit Bragelien (2009). Parr et al. Respond to "Recall Bias in Melanoma". American Journal of Epidemiology.  ISSN 0002-9262.  169(3), s 271- 272 . doi: 10.1093/aje/kwn356
  • Bøhn, Siv Kjølsrud; Myhrstad, Mari Charlotte; Thoresen, Magne; Holden, Marit; Tunheim, Siv Haugen; Karlsen, Anette; Svendsen, Mette; Seljeflot, Ingebjørg; Moskaug, Jan Øivind; Duttaroy, Asim K.; Laake, Petter; Drevon, Christian A; Arnesen, Harald; Tonstad, Serena; Collins, Andrew Richard & Blomhoff, Rune (2008). Plant food phytochemicals modulate gene expression in human blood cells.
  • Karlsen, Anette; Retterstøl, Lars; Laake, Petter; Paur, Ingvild; Bøhn, Siv Kjølsrud; Sandvik, Leiv & Blomhoff, Rune (2007). Anthocyanins inhibit nuclear factor-kappaB activation in monocytes and reduce plasma concentrations of pro-inflammatory mediators in healthy adults.
  • Louch, William Edward; Mørk, Halvor Kjeang; Sexton, Joseph; Laake, Petter; Sjaastad, Ivar & Sejersted, Ole M (2007). Slowing of Ca2+ release in failing murine cardiomyocytes results from loss of release synchrony but not alterations in Ca2+ sparks.
  • Lydersen, Stian; Laake, Petter & Fagerland, Morten (2007). Bedre hypotesetester i 2x2 tabeller .
  • Karlsen, Anette; Laake, Petter; Brevik, Asgeir; Andersen, Lene Frost; Drevon, Christian A & Blomhoff, Rune (2006). The development of a plasma carotenoid index that reflect the overall fruit and vegetable intake.
  • Laake, Petter & Sejersted, Ole M (2006). Forskning og forskerutdanning er viktig. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  126, s 1495- 1496
  • Louch, William Edward; Mørk, Halvor Kjeang; Sexton, Joe; Strømme, Tævje; Laake, Petter; Sjaastad, Ivar & Sejersted, Ole M (2006). Progressive t-tubule disorganization promotes dyssynchrony of Ca2+ release during congestive heart failure in mice following myocardial infarction. Biophysical Journal.  ISSN 0006-3495.  90

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Published Apr. 13, 2011 2:40 PM - Last modified Dec. 8, 2014 12:13 PM