H
Håkon K. Gjessing
Researcher at Norwegian Institute of Public Health
Publications - 143
Citations - 9404
Håkon K. Gjessing is an academic researcher from Norwegian Institute of Public Health. The author has contributed to research in topics: Population & Pregnancy. The author has an hindex of 45, co-authored 138 publications receiving 8497 citations. Previous affiliations of Håkon K. Gjessing include University of Oslo & University of Bergen.
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Survival and Event History Analysis: A Process Point of View
TL;DR: An introduction to survival and event history analysis can be found in this paper, where the authors present a nonparametric analysis of survival and history data using regression models and counting process models.
Journal ArticleDOI
GWAS of 126,559 Individuals Identifies Genetic Variants Associated with Educational Attainment
Cornelius A. Rietveld,Sarah E. Medland,Jaime Derringer,Jian Yang,Tõnu Esko,Nicolas W. Martin,Nicolas W. Martin,Harm-Jan Westra,Konstantin Shakhbazov,Abdel Abdellaoui,Arpana Agrawal,Eva Albrecht,Behrooz Z. Alizadeh,Najaf Amin,John Barnard,Sebastian E. Baumeister,Kelly S. Benke,Lawrence F. Bielak,Jeffrey A. Boatman,Patricia A. Boyle,Gail Davies,Christiaan de Leeuw,Niina Eklund,Niina Eklund,Daniel S. Evans,Rudolf Ferhmann,Krista Fischer,Christian Gieger,Håkon K. Gjessing,Sara Hägg,Sara Hägg,Jennifer R. Harris,Caroline Hayward,Christina Holzapfel,Carla A. Ibrahim-Verbaas,Erik Ingelsson,Erik Ingelsson,Bo Jacobsson,Bo Jacobsson,Peter K. Joshi,Astanand Jugessur,Marika Kaakinen,Stavroula Kanoni,Juha Karjalainen,Ivana Kolcic,Kati Kristiansson,Kati Kristiansson,Zoltán Kutalik,Zoltán Kutalik,Jari Lahti,Sang Hong Lee,Peng Lin,Penelope A. Lind,Yongmei Liu,Kurt Lohman,Marisa Loitfelder,George McMahon,Pedro Marques Vidal,Osorio Meirelles,Lili Milani,Ronny Myhre,Marja-Liisa Nuotio,Marja-Liisa Nuotio,Christopher Oldmeadow,Katja Petrovic,Wouter J. Peyrot,Ozren Polasek,Lydia Quaye,Eva Reinmaa,John P. Rice,Thais S. Rizzi,Helena Schmidt,Reinhold Schmidt,Albert V. Smith,Jennifer A. Smith,Toshiko Tanaka,Antonio Terracciano,Antonio Terracciano,Matthijs J. H. M. van der Loos,Veronique Vitart,Henry Völzke,Jürgen Wellmann,Lei Yu,Wei Zhao,Jüri Allik,John Attia,Stefania Bandinelli,François Bastardot,Jonathan P. Beauchamp,David A. Bennett,Klaus Berger,Laura J. Bierut,Dorret I. Boomsma,Ute Bültmann,Harry Campbell,Christopher F. Chabris,Lynn Cherkas,Mina K. Chung,Francesco Cucca,Francesco Cucca,Mariza de Andrade,Philip L. De Jager,Jan-Emmanuel De Neve,Jan-Emmanuel De Neve,Ian J. Deary,George Dedoussis,Panos Deloukas,Maria Dimitriou,Guoný Eiríksdóttir,Martin F. Elderson,Johan G. Eriksson,David M. Evans,Jessica D. Faul,Luigi Ferrucci,Melissa E. Garcia,Henrik Grönberg,Vilmundur Guonason,Per Hall,Juliette Harris,Tamara B. Harris,Nicholas D. Hastie,Andrew C. Heath,Dena G. Hernandez,Wolfgang Hoffmann,Adriaan Hofman,Rolf Holle,Elizabeth G. Holliday,Jouke-Jan Hottenga,William G. Iacono,Thomas Illig,Marjo-Riitta Järvelin,Marjo-Riitta Järvelin,Marjo-Riitta Järvelin,Mika Kähönen,Jaakko Kaprio,Jaakko Kaprio,Robert M. Kirkpatrick,Matthew Kowgier,Antti Latvala,Antti Latvala,Lenore J. Launer,Debbie A Lawlor,Terho Lehtimäki,Jingmei Li,Paul Lichtenstein,Peter Lichtner,David C. Liewald,Pamela A. F. Madden,Patrik K. E. Magnusson,Tomi E. Mäkinen,Marco Masala,Matt McGue,Andres Metspalu,Andreas Mielck,Michael B. Miller,Grant W. Montgomery,Sutapa Mukherjee,Sutapa Mukherjee,Dale R. Nyholt,Ben A. Oostra,Lyle J. Palmer,Aarno Palotie,Aarno Palotie,Brenda W.J.H. Penninx,Markus Perola,Markus Perola,Markus Perola,Patricia A. Peyser,Martin Preisig,Katri Räikkönen,Olli T. Raitakari,Anu Realo,Susan M. Ring,Samuli Ripatti,Samuli Ripatti,Samuli Ripatti,Fernando Rivadeneira,Igor Rudan,Aldo Rustichini,Veikko Salomaa,Antti-Pekka Sarin,David Schlessinger,Rodney J. Scott,Harold Snieder,Beate St Pourcain,John M. Starr,Jae Hoon Sul,Ida Surakka,Ida Surakka,Rauli Svento,Alexander Teumer,Henning Tiemeier,Frank J. A. van Rooij,David R. Van Wagoner,Erkki Vartiainen,Jorma Viikari,Peter Vollenweider,Judith M. Vonk,Gérard Waeber,David R. Weir,H.-Erich Wichmann,Elisabeth Widen,Gonneke Willemsen,James F. Wilson,Alan F. Wright,Dalton Conley,George Davey-Smith,Lude Franke,Patrick J. F. Groenen,Albert Hofman,Magnus Johannesson,Sharon L.R. Kardia,Robert F. Krueger,David Laibson,Nicholas G. Martin,Michelle N. Meyer,Michelle N. Meyer,Danielle Posthuma,Danielle Posthuma,Roy Thurik,Nicholas J. Timpson,André G. Uitterlinden,Cornelia M. van Duijn,Cornelia M. van Duijn,Peter M. Visscher,Peter M. Visscher,Daniel J. Benjamin,David Cesarini,David Cesarini,David Cesarini,Philipp Koellinger +230 more
TL;DR: In this article, a genome-wide association study of educational attainment was conducted in a discovery sample of 101,069 individuals and a replication sample of 25,490 individuals, and three independent SNPs are genome wide significant (rs9320913, rs11584700, rs4851266).
Journal ArticleDOI
Self-selection and bias in a large prospective pregnancy cohort in Norway.
Roy Miodini Nilsen,Stein Emil Vollset,Stein Emil Vollset,Håkon K. Gjessing,Håkon K. Gjessing,Rolv Skjærven,Rolv Skjærven,Kari K. Melve,Kari K. Melve,Patricia Schreuder,Elin R. Alsaker,Kjell Haug,Anne Kjersti Daltveit,Anne Kjersti Daltveit,Per Magnus +14 more
TL;DR: It is suggested that prevalence estimates of exposures and outcomes, but not estimates of exposure-outcome associations are biased due to self-selection in the Norwegian Mother and Child Cohort Study.
Journal ArticleDOI
Birthweight by gestational age in Norway.
TL;DR: Evaluate secular trends and provide new standards for small for gestational age for 16 to 44 weeks of gestation in Norway for the period 1967–1998 to describe birthweight by Gestational age in Norway.
Journal ArticleDOI
Fetal and maternal contributions to risk of pre-eclampsia: population based study
Rolv T. Lie,Svein Rasmussen,Helge Brunborg,Håkon K. Gjessing,Erik Lie-Nielsen,Lorentz M. Irgens +5 more
TL;DR: Both the mother and the fetus contribute to the risk of pre-eclampsia, the contribution of the fetus being affected by paternal genes, and search for specific genes that predispose for pre- eClampsia should include the fetus as well as the mother.