Projects and publications
- Betydning av tidlige erfaringer i barnehage og skole for senere utvikling og utdanning (MoBaEarlyEd)
- Covid-19 and impact on mental health: a longitudinal, multi-national study (C-Me).
- Genetisk sårbarehet for angstlidelser
- Infection and Immunity and Attention-Deficit/Hyperactivity Disorder (ADHD) in a Population-Based Birth Cohort
- Intergenerational Transmission of Internalizing and Externalizing Psychopathological Spectra: A Genome-Wide Complex Trait Study
- Prenatale risikofaktorer for ADHD
- PsychGen core project: Genetic epidemiology studies of neurodevelopment and mental health
- Reproduction of socioeconomic differences and mental health across generations (REMENTA)
- Amanda M. Hughes, Eleanor Sanderson, Tim Morris, Ziada Ayorech, Martin Steen Tesli, Helga Ask, Ted Reichborn-Kjennerud, Ole Andreassen, Per Minor Magnus, Øyvind Helgeland, Stefan Johansson, Pål Rasmus Njølstad, George Davey Smith, Alexandra Karoline Saasen Havdahl, Laura D. Howe, Neil Martin Davies, (2022). Body mass index and childhood symptoms of depression, anxiety, and attention-deficit hyperactivity disorder: A within-family Mendelian randomization study. eLIFE doi: 10.7554/eLife.74320
- Nora Refsum Bakken, Laurie John Hannigan, Alexey Shadrin, Guy Frederick Lanyon Hindley, Helga Ask, Ted Reichborn-Kjennerud, Martin Steen Tesli, Ole Andreassen, Alexandra Karoline Saasen Havdahl, (2022). Childhood temperamental, emotional, and behavioral characteristics associated with mood and anxiety disorders in adolescence: A prospective study. Acta Psychiatrica Scandinavica s. 217-228. doi: 10.1111/acps.13522
- Jean-Baptiste Pingault, Wikus Barkhuizen, Biyao Wang, Laurie John Hannigan, Espen Moen Eilertsen, Elizabeth Claire Corfield, Ole Andreassen, Helga Ask, Martin Steen Tesli, Ragna Bugge Askeland, George Davey Smith, Camilla Stoltenberg, Neil Martin Davies, Ted Reichborn-Kjennerud, Eivind Ystrøm, Alexandra Havdahl, (2022). Genetic nurture versus genetic transmission of risk for ADHD traits in the Norwegian Mother, Father and Child Cohort Study. Molecular Psychiatry doi: 10.1038/s41380-022-01863-6
- Laurence J. Howe, Michel G. Nivard, Tim T. Morris, Ailin Falkmo Hansen, Humaira Rasheed, Yoonsu Cho, Geetha Chittoor, Rafael Ahlskog, Penelope A. Lind, Teemu Palviainen, Matthijs D. van der Zee, Rosa Catherine Gillespie Cheesman, Massimo Mangino, Yunzhang Wang, Shuai Li, Lucija Klaric, Scott M. Ratliff, Lawrence F. Bielak, Marianne Nygaard, Alexandros Giannelis, Emily A. Willoughby, Chandra A. Reynolds, Jared V. Balbona, Ole Andreassen, Helga Ask, Aris Baras, Christopher R. Bauer, Dorret I. Boomsma, Archie Campbell, Harry Campbell, Zhengming Chen, Paraskevi Christofidou, Elizabeth Claire Corfield, Christina C. Dahm, Deepika R. Dokuru, Luke M. Evans, Eco J. C. de Geus, Sudheer Giddaluru, Scott D. Gordon, K. Paige Harden, W. David Hill, Amanda Hughes, Shona M. Kerr, Yongkang Kim, Hyeokmoon Kweon, Antti Latvala, Deborah A. Lawlor, Liming Li, Kuang Lin, Per Minor Magnus, Patrik K. E. Magnusson, Travis T. Mallard, Pekka Martikainen, Melinda C. Mills, Pål Rasmus Njølstad, John D. Overton, Nancy L. Pedersen, David J. Porteous, Jeffrey Reid, Karri Silventoinen, Melissa C. Southey, Camilla Stoltenberg, Elliot M. Tucker-Drob, Margaret J. Wright, Hyeokmoon Kweon, Philipp D. Koellinger, Daniel J. Benjamin, Patrick Turley, Laurence J. Howe, Michel G. Nivard, Tim T. Morris, Robert Plomin, Alexandra Havdahl, Meike Bartels, Nicholas G. Martin, Sven Oskarsson, Anne E. Justice, Iona Y. Millwood, Kristian Hveem, Cristen J. Willer, Bjørn Olav Åsvold, Jaakko Kaprio, Sarah E. Medland, Robin G. Walters, David M. Evans, George Davey Smith, Caroline Hayward, Gibran Hemani, Neil Martin Davies, John K. Hewitt, Matthew C. Keller, Michael C. Stallings, James J. Lee, Kaare Christensen, Sharon L. R. Kardia, Patricia A. Peyser, Jennifer A. Smith, James F. Wilson, John L. Hopper, Sara Hägg, (2022). Within-sibship genome-wide association analyses decrease bias in estimates of direct genetic effects. Nature Genetics s. 581-592. doi: 10.1038/s41588-022-01062-7
- Alexandra Havdahl, Robyn E Wootton, Beate Leppert, Lucy Riglin, Helga Ask, Martin Steen Tesli, Ragna Bugge Askeland, Laurie John Hannigan, Elizabeth Claire Corfield, Anne-Siri Øyen, Ole Andreassen, Kate Tilling, George Davey Smith, Anita Thapar, Ted Reichborn-Kjennerud, Evie Stergiakouli, (2022). Associations between Pregnancy-Related Predisposing Factors for Offspring Neurodevelopmental Conditions and Parental Genetic Liability to Attention-Deficit/Hyperactivity Disorder, Autism, and Schizophrenia: The Norwegian Mother, Father and Child Cohort Study (MoBa). JAMA psychiatry s. 799-810. doi: 10.1001/jamapsychiatry.2022.1728
- Eshim S. Jami, Anke R. Hammerschlag, Hill F. Ip, Andrea G. Allegrini, Beben Benyamin, Richard Border, Elizabeth W. Diemer, Chang Jiang, Ville Karhunen, Yi Lu, Qing Lu, Travis T. Mallard, Pashupati P. Mishra, Ilja M. Nolte, Teemu Palviainen, Roseann E. Peterson, Hannah M. Sallis, Andrey A. Shabalin, Ashley E. Tate, Elisabeth Thiering, Natàlia Vilor-Tejedor, Carol Wang, Ang Zhou, Daniel E. Adkins, Silvia Alemany, Helga Ask, Qi Chen, Robin P. Corley, Erik A. Ehli, Luke M. Evans, Alexandra Havdahl, Fiona A. Hagenbeek, Christian Hakulinen, Anjali K. Henders, Jouke Jan Hottenga, Tellervo Korhonen, Abdullah Mamun, Shelby Marrington, Alexander Neumann, Kaili Rimfeld, Fernando Rivadeneira, Judy L. Silberg, Catharina E. van Beijsterveldt, Eero Vuoksimaa, Alyce M. Whipp, Xiaoran Tong, Ole Andreassen, Dorret I. Boomsma, Sandra A. Brown, S. Alexandra Burt, William Copeland, Danielle M. Dick, K. Paige Harden, Kathleen Mullan Harris, Catharina A. Hartman, Joachim Heinrich, John K. Hewitt, Christian Hopfer, Elina Hypponen, Marjo-Riitta Jarvelin, Jaakko Kaprio, Liisa Keltikangas-Järvinen, Kelly L. Klump, Kenneth Krauter, Ralf Kuja-Halkola, Henrik Larsson, Terho Lehtimäki, Paul Lichtenstein, Sebastian Lundström, Hermine H. Maes, Per Minor Magnus, Marcus R. Munafò, Jake M. Najman, Pål Rasmus Njølstad, Albertine J. Oldehinkel, Craig E. Pennell, Robert Plomin, Ted Reichborn-Kjennerud, Chandra Reynolds, Richard J. Rose, Andrew Smolen, Harold Snieder, Michael Stallings, Marie Standl, Jordi Sunyer, Henning Tiemeier, Sally J. Wadsworth, Tamara L. Wall, Andrew J.O. Whitehouse, Gail M. Williams, Eivind Ystrøm, Michel G. Nivard, Meike Bartels, Christel M. Middeldorp, (2022). Genome-wide association meta-analysis of childhood and adolescent internalizing symptoms. Journal of the American Academy of Child and Adolescent Psychiatry s. 934-945. doi: 10.1016/j.jaac.2021.11.035
- Kjersti Mæhlum Walle, Ragna Bugge Askeland, Kristin Gustavson, Siri Mjaaland, Eivind Ystrøm, W. Ian Lipkin, Per Minor Magnus, Camilla Stoltenberg, Ezra Susser, Michaeline Bresnahan, Mady Hornig, Ted Reichborn-Kjennerud, Helga Ask, (2022). Risk of attention-deficit hyperactivity disorder in offspring of mothers with infections during pregnancy. JCPP Advances s. 1-11. doi: 10.1002/jcv2.12070
- Ellen Øen Carlsen, Ida Henriette Caspersen, Helga Ask, Ragnhild Eek Brandlistuen, Lill-Iren Schou Trogstad, Per Minor Magnus, (2022). Association between work situation and life satisfaction during the COVID-19 pandemic: prospective cohort study in Norway. BMJ Open s. 1-9. doi: 10.1136/bmjopen-2021-049586
- Ingibjörg Magnúsdóttir, Anikó Lovik, Anna Bára Unnarsdóttir, Daniel L. McCartney, Helga Ask, Kadri Kõiv, Lea Arregui Nordahl Christoffersen, Sverre Urnes Johnson, Arna Hauksdóttir, Chloe Fawns-Ritchie, Dorte Helenius, Juan González-Hijón, Li Lu, Omid Vakili Ebrahimi, Asle Hoffart, David J Porteous, Fang Fang, Johanna Jakobsdottir, Kelli Lehto, Ole Andreassen, Ole Birger Vesterager Pedersen, Thor Aspelund, Unnur Anna Valdimarsdottir, (2022). Acute COVID-19 severity and mental health morbidity trajectories in patient populations of six nations: an observational study. The Lancet Public Health s. 406-416. doi: 10.1016/S2468-2667(22)00042-1
- Ingunn Olea Lund, Njål Andersen, Marte Handal, Helga Ask, Svetlana Ondrasova Skurtveit, Eivind Ystrøm, Jasmina Burdzovic, (2022). Parental drinking, mental health and education, and extent of offspring’s healthcare utilisation for anxiety/depression: A HUNT survey and registry study. Scandinavian Journal of Public Health s. 1-9. doi: 10.1177/14034948221076212
- Martin Steen Tesli, Eirik Magnus Meek Degerud, Oleguer Plana-Ripoll, Kristin Gustavson, Fartein Ask Torvik, Eivind Ystrøm, Helga Ask, Natalia Tesli, Anne Høye, Camilla Stoltenberg, Ted Reichborn-Kjennerud, Ragnar Nesvåg, Øyvind Erik Næss, (2022). Educational attainment and mortality in schizophrenia. Acta Psychiatrica Scandinavica s. 481-493. doi: 10.1111/acps.13407
- H Watson, al. et, Ole Andreassen, Helga Ask, al. et, Alexandra Havdahl, Al. Et, (2021). Common Genetic Variation and Age of Onset of Anorexia Nervosa. Biological Psychiatry: Global Open Science s. 368-378. doi: 10.1016/j.bpsgos.2021.09.001
- Helga Ask, Espen Moen Eilertsen, Line Cecilie Gjerde, Laurie John Hannigan, Kristin Gustavson, Alexandra Havdahl, Rosa Catherine Gillespie Cheesman, Tom A. McAdams, John M. Hettema, Ted Reichborn-Kjennerud, Fartein Ask Torvik, Eivind Ystrøm, (2021). Intergenerational transmission of parental neuroticism to emotional problems in 8-year-old children: Genetic and environmental influences. JCPP Advances doi: 10.1002/jcv2.12054
- Anna Bára Unnarsdóttir, Anikó Lovik, Chloe Fawns-Ritchie, Helga Ask, Kadri Kõiv, Kristen Hagen, Maria Didriksen, Lea Arregui Nordahl Christoffersen, Alexander Berg Garðarsson, Andrew McIntosh, Anna K. Kähler, Archie Campbell, Arna Hauksdóttir, Christian Erikstrup, Dorte Helenius Mikkelsen, Drew Altschul, Edda Bjork Thordardottir, Emma Maria Frans, Gerd Kvale, Gunnar Tómasson, Hanna Maria Kariis, Harpa Lind Jónsdóttir, Harpa Rúnarsdóttir, Ingibjörg Magnúsdóttir, Jarle Eid, Jóhanna Jakobsdóttir, Kaspar René Nielsen, Kathrine Agergård Kaspersen, Lili Milani, Lill-Iren Schou Trogstad, Lu Yi, Mie Topholm Bruun, Patrick F. Sullivan, Per Minor Magnus, Qing Shen, Ragnar Nesvåg, Ragnhild Eek Brandlistuen, Reedik Mägi, Sisse Rye Ostrowski, Solveig Løkhammer, Stian Solem, Ted Reichborn-Kjennerud, Thomas Folkmann Hansen, Thomas Werge, Thor Aspelund, David J. Porteous, Fang Fang, Kelli Lehto, Ole Andreassen, Ole Birger Vesterager Pedersen, Stephanie Francoise Claire Le Hellard, Unnur Anna Valdimarsdóttir, (2021). Cohort Profile: COVIDMENT: COVID-19 cohorts on mental health across six nations. International Journal of Epidemiology s. 1-15. doi: 10.1093/ije/dyab234
- Ragna Bugge Askeland, Laurie J. Hannigan, Helga Ask, Ziada Ayorech, Martin Steen Tesli, Elizabeth Corfield, Per Minor Magnus, Pål Rasmus Njølstad, Ole A. Andreassen, George Davey Smith, Ted Reichborn-Kjennerud, Alexandra Havdahl, (2021). Early manifestations of genetic risk for neurodevelopmental disorders. Journal of Child Psychology and Psychiatry s. 1-10. doi: 10.1111/jcpp.13528
- Kristin Gustavson, Fartein Ask Torvik, Espen Moen Eilertsen, Helga Ask, Tom A. McAdams, Laurie John Hannigan, Ted Reichborn-Kjennerud, Eivind Ystrøm, Line Cecilie Gjerde, (2021). Genetic and environmental contributions to co-occurring ADHD and emotional problems in school-aged children. Developmental Psychology s. 1359-1371. doi: 10.1037/dev0001229
- Kristin Gustavson, Eivind Ystrøm, Helga Ask, Fartein Ask Torvik, Mady Hornig, Ezra Susser, Ian Lipkin, Angela Lupattelli, Camilla Stoltenberg, Per Minor Magnus, Siri Mjaaland, Ragna Bugge Askeland, Kjersti Mæhlum Walle, Michaeline Bresnahan, Hedvig Marie Egeland Nordeng, Ted Reichborn-Kjennerud, (2021). Acetaminophen use during pregnancy and offspring attention deficit hyperactivity disorder - a longitudinal sibling control study. JCPP Advances doi: 10.1002/jcv2.12020
- Helga Ask, Rosa Catherine Gillespie Cheesman, Eshim S. Jami, Daniel F. Levey, Kirstin L. Purves, Heike Weber, (2021). Genetic contributions to anxiety disorders: Where we are and where we are heading. Psychological Medicine s. 1-16. doi: 10.1017/S0033291720005486
- Laurie John Hannigan, Ragna Bugge Askeland, Helga Ask, Martin Tesli, Elizabeth Corfield, Ziada Ayorech, Øyvind Helgeland, Per Magnus, Pål Rasmus Njølstad, Anne-Siri Øyen, Camilla Stoltenberg, Ole A. Andreassen, George Davey Smith, Ted Reichborn-Kjennerud, Alexandra Havdahl, (2021). Genetic Liability for Schizophrenia and Childhood Psychopathology in the General Population. Schizophrenia Bulletin s. 1179-1189. doi: 10.1093/schbul/sbaa193
- Wonuola A. Akingbuwa, Anke R. Hammerschlag, Eshim S. Jami, Andrea G. Allegrini, Ville Karhunen, Hannah Sallis, Helga Ask, Ragna Bugge Askeland, Bart Baselmans, Elizabeth W Diemer, Fiona A. Hagenbeek, Alexandra Havdahl, Jouke-Jan Hottenga, Hamdi Mbarek, Fernando Rivadeneira, Martin Steen Tesli, Catharina E. M. van Beijsterveldt, Gerome Breen, Cathryn M. Lewis, Anita Thapar, Dorret I. Boomsma, Ralf Kuja-Halkola, Ted Reichborn-Kjennerud, Per Magnus, Kaili Rimfeld, Eivind Ystrøm, Marjo-Riitta Järvelin, Paul Lichtenstein, Sebastian Lundström, Marcus R. Munafò, Robert Plomin, Henning Tiemeier, Michel G. Nivard, Meike Bartels, Christel M. Middeldorp, (2020). Genetic Associations Between Childhood Psychopathology and Adult Depression and Associated Traits in 42 998 Individuals: A Meta-analysis. JAMA psychiatry s. 715-728. doi: 10.1001/jamapsychiatry.2020.0527
- Mariann Idstad, Helga Ask, Bo Lars Engdahl, (2020). Marriage and cohabiting rates among people with childhood sensorineural hearing loss in a large Norwegian cohort: results from the SHINT and the HUNT study. International Journal of Audiology s. 661-665. doi: 10.1080/14992027.2020.1730009
- Fartein Ask Torvik, Espen Moen Eilertsen, Tom A. McAdams, Kristin Gustavson, Henrik Daae Zachrisson, Ragnhild Eek Brandlistuen, Line C. Gjerde, Alexandra Havdahl, Camilla Stoltenberg, Helga Ask, Eivind Ystrøm, (2020). Mechanisms linking parental educational attainment with child ADHD, depression, and academic problems: a study of extended families in The Norwegian Mother, Father and Child Cohort Study. Journal of Child Psychology and Psychiatry s. 1009-1018. doi: 10.1111/jcpp.13197
- Helga Ask, Marte Handal, Lars Johan Hauge, Ted Reichborn-Kjennerud, Svetlana Skurtveit, (2020). Incidence of diagnosed pediatric anxiety disorders and use of prescription drugs: a nation-wide registry study. European Child and Adolescent Psychiatry doi: 10.1007/s00787-019-01419-0
- Kristin Gustavson, Helga Ask, Eivind Ystrøm, Camilla Stoltenberg, W. Ian Lipkin, Pål Suren, Siri Eldevik Håberg, Per Magnus, Gun Peggy S. Knudsen, Espen Moen Eilertsen, Michaeline Bresnahan, Heidi Aase, Siri Mjaaland, Ezra S. Susser, Mady Hornig, Ted Reichborn-Kjennerud, (2019). Maternal fever during pregnancy and offspring attention deficit hyperactivity disorder. Scientific Reports s. 1-10. doi: 10.1038/s41598-019-45920-7
- Ida Marie Opdal, Bente Morseth, Bjørn Helge Handegård, Kjersti Lillevoll, Helga Ask, Christopher Sivert Nielsen, Alexander Horsch, Anne-Sofie Furberg, Simon Rosenbaum, Kamilla Rognmo, (2019). Change in physical activity is not associated with change in mental distress among adolescents: The Tromsø Study: Fit Futures. BMC Public Health doi: 10.1186/s12889-019-7271-6
- Helga Ask, Kristin Gustavson, Eivind Ystrøm, Karoline Alexandra Havdahl, Martin Steen Tesli, Ragna Bugge Askeland, Ted Reichborn-Kjennerud, (2018). Association of Gestational Age at Birth With Symptoms of Attention-Deficit/Hyperactivity Disorder in Children. JAMA pediatrics s. 749-756. doi: 10.1001/jamapediatrics.2018.1315
- Gro Dehli Villanger, Emily Learner, Matthew P Longnecker, Helga Ask, Heidi Aase, R. Thomas Zoeller, Gun Peggy Knudsen, Ted Reichborn-Kjennerud, Pål Zeiner, Stephanie M Engel, (2017). Effects of Sample Handling and Analytical Procedures on Thyroid Hormone Concentrations in Pregnant Women's Plasma. Epidemiology s. 365-369. doi: 10.1097/EDE.0000000000000606
- Karoline Brobakke Seglem, Trine Waaktaar, Helga Ask, Svenn Torgersen, (2016). Sex differences in genetic and environmental contributions to alcohol consumption from early adolescence to young adulthood. Addiction s. 1188-1195. doi: 10.1111/add.13321
- Helga Ask, Trine Waaktaar, Karoline Brobakke Seglem, Svenn Torgersen, (2016). Common Etiological Sources of Anxiety, Depression, and Somatic Complaints in Adolescents: A Multiple Rater twin Study. Journal of Abnormal Child Psychology s. 101-114. doi: 10.1007/s10802-015-9977-y
- Ingrid Borren, Kristian Tambs, Kristin Gustavson, Helga Ask, Bo Lars Engdahl, Jon Martin Sundet, (2015). Associations between parental hearing impairment and children's mental health: Results from the Nord-Trøndelag Health Study. Social Science and Medicine s. 252-260. doi: 10.1016/j.socscimed.2015.11.011
- Karoline Brobakke Seglem, Trine Waaktaar, Helga Ask, Svenn Torgersen, (2015). Genetic and Environmental Influences on Adolescents’ Smoking Involvement: A Multi-informant Twin Study. Behavior Genetics s. 171-180. doi: 10.1007/s10519-015-9706-x
- Ellen Melbye Langballe, Helga Ask, Jostein Holmen, Eystein Stordal, Ingvild Saltvedt, Geir Selbæk, Arvid Fikseaunet, Sverre Bergh, Per Nafstad, Kristian Tambs, (2015). Alcohol consumption and risk of dementia up to 27 years later in a large, population-based sample: the HUNT study, Norway. European Journal of Epidemiology (EJE) s. 1049-1056. doi: 10.1007/s10654-015-0029-2
- Karoline Brobakke Seglem, Svenn Torgersen, Helga Ask, Trine Waaktaar, (2015). Weak etiologic links between control and the externalizing behaviors delinquency and substance abuse in adolescence. Personality and Individual Differences s. 179-184. doi: 10.1016/j.paid.2014.11.036
- Helga Ask, Ellen Melbye Langballe, Jostein Holmen, Geir Selbæk, Ingvild Saltvedt, Kristian Tambs, (2014). Mental health and wellbeing in spouses of persons with dementia: the Nord-Trøndelag health study. BMC Public Health doi: 10.1186/1471-2458-14-413
- Helga Ask, Svenn Torgersen, Karoline Brobakke Seglem, Trine Waaktaar, (2014). Genetic and environmental causes of variation in adolescent anxiety symptoms: A multiple-rater twin study. Journal of Anxiety Disorders s. 363-371. doi: 10.1016/j.janxdis.2014.04.003
- Helga Ask, Mariann Idstad, Bo Lars Engdahl, Kristian Tambs, (2013). Non-random Mating and Convergence Over Time for Mental Health, Life Satisfaction, and Personality: The Nord-Trøndelag Health Study. Behavior Genetics s. 108-119. doi: 10.1007/s10519-012-9578-2
- Ingrid Borren, Kristian Tambs, Mariann Idstad, Helga Ask, Jon Martin Sundet, (2012). Psychological distress and subjective well-being in partners of somatically ill or physically disabled: The Nord-Trondelag Health Study. Scandinavian Journal of Psychology s. 475-482. doi: 10.1111/sjop.12009
- Kamilla Rognmo, Fartein Ask Torvik, Helga Ask, Espen Røysamb, Kristian Tambs, (2012). Paternal and maternal alcohol abuse and offspring mental distress in the general population: the Nord-Trøndelag health study. BMC Public Health doi: 10.1186/1471-2458-12-448
- Helga Ask, Kamilla Rognmo, Fartein Ask Torvik, Espen Røysamb, Kristian Tambs, (2012). Non-random mating and convergence over time for alcohol consumption, smoking and exercise: The Nord-Trondelag Health Study. Behavior Genetics s. 354-365. doi: 10.1007/s10519-011-9509-7
- Fartein Ask Torvik, Kamilla Rognmo, Helga Ask, Espen Røysamb, Kristian Tambs, (2011). Parental alcohol use and adolescent school adjustment in the general population: Results from the HUNT study. BMC Public Health doi: 10.1186/1471-2458-11-706
- Helga Ask, Norun Hjertager Krog, Kristian Tambs, (2010). Impact of hearing impairment on spousal mental health: the Nord-Trondelag Health Study. European Journal of Public Health s. 271-275. doi: 10.1093/eurpub/ckp176
- Mariann Idstad, Helga Ask, Kristian Tambs, (2010). Mental disorder and caregiver burden in spouses: the Nord-Trøndelag health study. BMC Public Health doi: 10.1186/1471-2458-10-516
- Elizabeth Claire Corfield, Oleksandr Frei, Alexey Shadrin, Zillur Rahman, Aihua Lin, Lavinia Athanasiu, Bayram Cevdet Akdeniz, Laurie Hannigan, Robyn Wootton, Chloe Austerberry, Amanda Hughes, Martin Steen Tesli, Lars Tjelta Westlye, Hreinn Stefansson, Kari Stefansson, Pål Rasmus Njølstad, Per Minor Magnus, Davies Neil Martin, Vivek Appadurai, Gibran Hemani, Eivind Hovig, Tetyana Zayats, Helga Ask, Ted Reichborn-Kjennerud, Ole Andreassen, Alexandra Havdahl, (2022). The Norwegian Mother, Father, and Child cohort study (MoBa) genotyping data resource: MoBaPsychGen pipeline v.1
- Ragna Bugge Askeland, Laurie John Hannigan, Helga Ask, Ziada Ayorech, Martin Steen Tesli, Elizabeth Corfield, Per Magnus, Pål Rasmus Njølstad, Ole Andreas Andreassen, George Davey smith, Ted Reichborn-Kjennerud, Alexandra Havdahl, (2020). Early manifestations of genetic risk for neurodevelopmental disorders
- Laurie John Hannigan, Ragna Bugge Askeland, Helga Ask, Martin Steen Tesli, Elizabeth Corfield, Ziada Ayorech, Per Magnus, Pål Rasmus Njølstad, Anne-Siri Øyen, Camilla Stoltenberg, Ole Andreas Andreassen, George Davey smith, Ted Reichborn-Kjennerud, Alexandra Havdahl, (2020). Developmental milestones in early childhood and genetic liability to neurodevelopmental disorders
- Helga Ask, Anne Kjeldsen, Heidi Aase, (2015). Samtaler med barn
- Helga Ask, Kristian Tambs, Ellen Melbye Langballe, (2013). Married and cohabitating couples: spousal similarity and spousal caregiving. Findings from the Nord-Trøndelag Health Study
- Laurie John Hannigan, Laura Hegemann, Helga Ask, Elizabeth Claire Corfield, Alexandra Havdahl, (2022). Latent polygenic profile analysis (LPPA) as a tool for dimension reduction and exploring the phenotypic correlates of overlapping genetic liabilities .
- Helga Ask, Alexandra Karoline Saasen Havdahl, (2022). Current achievements and new opportunities in MoBa.
- Ludvig Daae Bjørndal, Espen Moen Eilertsen, Jessie R. Baldwin, Ziada Ayorech, Rosa Catherine Gillespie Cheesman, Yasmin Ahmadzadeh, Helga Ask, Laurie John Hannigan, Tom A. McAdams, Alexandra Havdahl, Ragnhild Bang Nes, Espen Røysamb, Eivind Ystrøm, (2022). Disentangling intrafamilial effects on maternal depression using trio-GCTA. European Neuropsychopharmacology doi: 10.1016/j.euroneuro.2022.07.125
- Helga Ask, (2022). De som fikk korona hardest, blir dobbelt så ofte deprimerte og sliter lenger.
- Laurie John Hannigan, Ingunn Olea Lund, Adrian Dahl Askelund, Eivind Ystrøm, Elizabeth Claire Corfield, Helga Ask, Alexandra Karoline Saasen Havdahl, (2022). Gene-environment interplay in associations between maternal at-risk drinking and early childhood emotional and behavioural development in the Norwegian Mother, Father, and Child Cohort.
- Helga Ask, (2022). Slik påvirker corona psyken.
- Elizabeth Claire Corfield, Alexey Shadrin, Oleksandr Frei, Zillur Rahman, Aihua Lin, Lavinia Athanasiu, Bayram Cevdet Akdeniz, Laurie John Hannigan, Robyn E Wootton, Chloe Austerberry, Tetyana Zayats, Helga Ask, Ted Reichborn-Kjennerud, Ole Andreassen, Alexandra Havdahl, (2022). Genetic profile of the Norwegian Mother, Father, and Child Cohort Study (MoBa): Results from the MoBaPsychGen pipeline.
- Ludvig Daae Bjørndal, Espen Moen Eilertsen, Jessie R. Baldwin, Ziada Ayorech, Rosa Catherine Gillespie Cheesman, Yasmin Ahmadzadeh, Helga Ask, Laurie John Hannigan, Tom A. McAdams, Alexandra Havdahl, Ragnhild Bang Nes, Espen Røysamb, Eivind Ystrøm, (2022). Disentangling intrafamilial effects on maternal depression using trio-GCTA.
- Elizabeth Claire Corfield, Oleksandr Frei, Alexey Shadrin, Zillur Rahman, Aihua Lin, Lavinia Athanasiu, Bayram Cevdet Akdeniz, Laurie John Hannigan, Robyn E Wootton, Chloe Austerberry, Amanda Hughes, Martin Steen Tesli, Lars Tjelta Westlye, Hreinn Stefánsson, Kári Stefánsson, Pål Rasmus Njølstad, Per Minor Magnus, Neil M. Davies, Vivek Appadurai, Gibran Hemani, Eivind Hovig, Tetyana Zayats, Helga Ask, Ted Reichborn-Kjennerud, Ole Andreassen, Alexandra Havdahl, (2022). The Norwegian Mother, Father, and Child cohort study (MoBa) genotyping data resource: the MoBaPsychGen_v1 pipeline.
- Kjersti Mæhlum Walle, Helga Ask, Kristin Gustavson, (2022). Risk of ADHD in offspring of mothers with infections during pregnancy.
- Kjersti Mæhlum Walle, Helga Ask, Kristin Gustavson, (2022). Maternal autoimmune disorders in pregnancy and risk of ADHD in offspring.
- Johanne Hagen Pettersen, Helga Ask, Ragnhild Eek Brandlistuen, (2022). Covid-19 and impact on mental health.
- Adrian Dahl Askelund, Laura Hegemann, Elizabeth Claire Corfield, Helga Ask, Eivind Ystrøm, Alexandra Havdahl, Laurie John Hannigan, (2022). The genomics of psychiatric symptom differentiation in early life.
- Kadri Kõiv, Ragna Bugge Askeland, Daniel L. McCartney, Urmo Võsa, Elis Haan, Reedik Mägi, Lili Milani, Dorte Helenius Mikkelsen, Helga Ask, Unnur Anna Valdimarsdóttir, Kelli Lehto, (2022). Association between the genetic liability to psychiatric disorders and covid-19 illness severity.
- Ragna Bugge Askeland, Laurie John Hannigan, Kevin Sean O'Connell, Elizabeth Claire Corfield, Oleksandr Frei, Anita Thapar, George Davey-Smith, Ted Reichborn-Kjennerud, Ole Andreassen, Helga Ask, Alexandra Havdahl, (2022). Developmental manifestations of polygenic risk for bipolar disorder from infancy to middle childhood.
- Johanne Hagen Pettersen, Laurie John Hannigan, Espen Moen Eilertsen, Kristin Gustavson, Ingunn Olea Lund, Pia Jensen, Alexandra Havdahl, Ragnar Nesvåg, Ragnhild Eek Brandlistuen, Helga Ask, (2022). Indirect genetic influences on mental distress in mother-father-offspring trios during the covid-19 lockdown.
- Johanne Hagen Pettersen, Laurie John Hannigan, Kristin Gustavson, Ingunn Olea Lund, Pia Jensen, Ragnar Nesvåg, Ragnhild Eek Brandlistuen, Helga Ask, (2022). Factors associated with change in adolescent mental distress during the first year of the Covid-19 pandemic.
- Helga Ask, Johanne Hagen Pettersen, Pia Jensen, (2022). Pandemien og den psykiske folkehelsen.
- Pia Jensen, Christian Madsen, Lars Johan Hauge, Kristin Gustavson, Ingunn Olea Lund, Johanne Hagen Pettersen, Ann Kristin Skrindo Knudsen, Anne Reneflot, Ragnhild Eek Brandlistuen, Unnur Anna Valdimarsdóttir, Helga Ask, Ragnar Nesvåg, (2022). Mental health treatment among adults with pre-existing mental disorders during the COVID-19 pandemic: a registry-based study from Norway.
- Helga Ask, (2022). How can we use MoBa data to understand mental health during the covid-19 pandemic?.
- Wikus Barkhuizen, Jean-Baptiste Pingault, Biyao Wang, Laurie John Hannigan, Espen Moen Eilertsen, Ole Andreassen, Helga Ask, Martin Steen Tesli, Ragna Bugge Askeland, George Davey Smith, Neil Davies, Ted Reichborn-Kjennerud, Eivind Ystrøm, Alexandra Havdahl, (2021). Direct and indirect genetic influences involved in the intergenerational transmission of risk for ADHD in the Norwegian Mother, Father and Child Cohort. Behavior Genetics s. 692-691.
- Helga Ask, (2021). Mors adferd kan overføre psykiske problemer til barn.
- Helga Ask, (2021). How can we use MoBa data to understand mental illness?.
- Laurie John Hannigan, Elizabeth Corfield, Guido Biele, Kate Tilling, Tom A. McAdams, Isabella Badini, George Davey Smith, Tom G. Richardson, Rosie Cornish, Martin Steen Tesli, Ragna Bugge Askeland, Per Minor Magnus, Ole Andreassen, Pål Rasmus Njølstad, Eivind Ystrom, Camilla Stoltenberg, Ted Reichborn-Kjennerud, Helga Ask, Alexandra Havdahl, (2021). The genomic basis of participation in the Norwegian Mother, Father and Child Cohort Study.
- Wikus Barkhuizen, Jean-Baptiste Pingault, Biyao Wang, Laurie John Hannigan, Espen Moen Eilertsen, Ole Andreassen, Helga Ask, Martin Steen Tesli, Ragna Bugge Askeland, George Davey Smith, Neil Davies, Ted Reichborn-Kjennerud, Eivind Ystrøm, Alexandra Havdahl, (2021). Direct and indirect genetic influences involved in the intergenerational transmission of risk for ADHD in the Norwegian Mother, Father and Child Cohort.
- Ziada Ayorech, Neil Davies, Robyn Wootton, Hunna J Watson, Laurie John Hannigan, Ragna Bugge Askeland, Elizabeth Corfield, Martin Steen Tesli, Anne-Siri Øyen, Pål R. Njølstad, Per Minor Magnus, Ole Andreassen, Ted Reichborn-Kjennerud, George Davey Smith, Cynthia M Bulik, Helga Ask, Alexandra Havdahl, (2021). Differential causal risk patterns in childhood eating behaviours compared to adulthood anorexia nervosa. A Mendelian randomization study.
- Amanda Hughes, Tim Morris, Ziada Ayorech, Martin Steen Tesli, Helga Ask, Ragna Bugge Askeland, Ted Reichborn-Kjennerud, Stefan Johansson, Ole Andreassen, Per Minor Magnus, Øyvind Helgeland, Pål Rasmus Njølstad, George Davey Smith, Neil Davies, Laura D Howe, Alexandra Havdahl, (2021). The causal effect of BMI on neurodevelopment: a within family Mendelian randomization study using MoBa. International Journal of Epidemiology doi: 10.1093/ije/dyab168.296
- Ziada Ayorech Lennox, Neil Davies, Laurie John Hannigan, Ragna Bugge Askeland, Martin Steen Tesli, Ole Andreas Andreassen, Ted Reichborn-Kjennerud, Øyvind Helgeland, Stefan Johansson, Pål Rasmus Njølstad, Helga Ask, George Davey Smith, Cynthia Bulik, Alexandra Havdahl, (2020). Which Metabo-Psychiatric Factors Affect the Risk of Anorexia Nervosa? A Mendelian Randomization Study.
- Ragna Bugge Askeland, Laurie John Hannigan, Helga Ask, Ziada Ayorech Lennox, Martin Steen Tesli, Elizabeth Corfield, George Davey-Smith, Ted Reichborn-Kjennerud, Alexandra Havdahl, (2020). Genetic risk factors for neurodevelopmental disorders.
- Helga Ask, (2020). Examining paternal effects in MoBa.
- Helga Ask, Rosa Catherine Gillespie Cheesman, Eshim Jami, Daniel F. Levey, Kirstin L. Purves, Heike Weber, (2020). Genetic contributions to anxiety disorders: Where we are and where we are heading (video).
- Kristin Gustavson, Fartein Ask Torvik, Line C. Gjerde, Helga Ask, Tom McAdams, Ted Reichborn-Kjennerud, Espen Moen Eilertsen, Eivind Ystrøm, (2019). Genetic and environmental contributions to comorbidity between ADHD and emotional problems in school aged children. Behavior Genetics s. 544-544. doi: 10.1007/s10519-019-09973-8
- Kristin Gustavson, Fartein Ask Torvik, Line C. Gjerde, Helga Ask, Tom McAdams, Ted Reichborn-Kjennerud, Espen Moen Eilertsen, Eivind Ystrøm, (2019). Genetic and environmental contributions to comorbidity between ADHD and emotional problems in school aged children.
- Fartein Ask Torvik, Espen Moen Eilertsen, Helga Ask, Kristin Gustavson, Tom A. McAdams, Eivind Ystrøm, (2019). Mechanisms linking parental education with symptoms of ADHD and depression in children. Behavior Genetics s. 534-534. doi: 10.1007/s10519-019-09973-8
- Helga Ask, Espen Moen Eilertsen, Line C. Gjerde, Kristin Gustavson, Laurie John Hannigan, Alexandra Havdahl, Tom A. McAdams, John M. Hettema, Ted Reichborn-Kjennerud, Fartein Ask Torvik, Eivind Ystrøm, (2019). Intergenerational transmission of parental neuroticism to offspring neuroticism, depression, and anxiety . Behavior Genetics s. 548-548. doi: 10.1007/s10519-019-09973-8
- Martin Steen Tesli, Elizabeth Corfield, Tetyana Zayats, Helga Ask, Ragna Bugge Askeland, Laurie Hannigan, Elise Robinson, Ole Andreas Andreassen, Alexandra Havdahl, Ted Reichborn-Kjennerud, (2019). Investigation of shared genetic risk between cardiometabolic morbidity and ADHD in a Norwegian family cohort using polygenic transmission disequilibrium test.
- Laurie Hannigan, Ragna Bugge Askeland, Helga Ask, Martin Steen Tesli, Elizabeth Corfield, Tom Mcadams, Anne-Siri Øyen, George Davey-Smith, Ted Reichborn-Kjennerud, Alexandra Havdahl, (2019). Perinatal maternal stress and early-life behavioural and emotional problems: examining the role of genetically-influenced environmental sensitivity in mothers and offspring.
- Kristin Gustavson, Fartein Ask Torvik, Line C. Gjerde, Helga Ask, Tom A. McAdams, Laurie Hannigan, Ted Reichborn-Kjennerud, Espen Moen Eilertsen, Eivind Ystrom, (2019). Genetic and environmental contributions to comorbidity between ADHD and emotional problems in school aged children..
- Helga Ask, Laurie Hannigan, Neil Davies, Kristin Gustavson, Guido Biele, Thomas Richardson, Rosie Cornish, Elizabeth Corfield, Ragna Bugge Askeland, Martin Steen Tesli, Kate Tilling, George Davey Smith, Per Magnus, Ted Reichborn-Kjennerud, Alexandra Havdahl, (2019). Exploring the Associations Between Health-Related Polygenic Scores and Participation in the Norwegian Mother and Child Pregnancy Cohort (MoBa).
- Helga Ask, Espen Moen Eilertsen, Line C. Gjerde, Kristin Gustavson, Laurie John Hannigan, Alexandra Havdahl, Tom A. McAdams, John M. Hettema, Ted Reichborn-Kjennerud, Fartein Ask Torvik, Eivind Ystrøm, (2019). Intergenerational transmission of parental neuroticism to offspring neuroticism, depression, and anxiety .
- Ragna Bugge Askeland, Laurie John Hannigan, Helga Ask, Martin Steen Tesli, Elizabeth Corfield, Ole Andreas Andreassen, George Davey-Smith, Ted Reichborn-Kjennerud, Alexandra Havdahl, (2019). Early manifestations of genetic risk for neurodevelopmental disorders.
- Ragna Bugge Askeland, Ted Reichborn-Kjennerud, Laurie John Hannigan, Helga Ask, Martin Steen Tesli, Elizabeth Corfield, Alexandra Havdahl, (2019). Early manifestation of genetic risk for attention deficit/hyperactivity disorder in Norwegian children.
- Alexandra Havdahl, Hannigan Laurie, Ragna Bugge Askeland, Helga Ask, Martin Steen Tesli, Elizabeth Corfield, Anne-Siri Øyen, Ole Andreassen, George Davey Smith, Ted Reichborn-Kjennerud, (2019). Polygenic Risk for ADHD and Exposures During Pregnancy in the Norwegian Mother and Child Cohort Study (MoBa).
- Fartein Ask Torvik, Espen Moen Eilertsen, Helga Ask, Kristin Gustavson, Tom A. McAdams, Eivind Ystrøm, (2019). Mechanisms linking parental education with symptoms of ADHD and depression in children.
- Fartein Ask Torvik, Espen Moen Eilertsen, Helga Ask, Kristin Gustavson, Tom A. McAdams, Eivind Ystrom, (2019). Intergenerational Associations between Parental Socioneconomic Status and Child ADHD.
- Eivind Ystrøm, Espen Moen Eilertsen, Line C. Gjerde, Fruhling Rijsdijk, Kristin Gustavson, Helga Ask, Ted Reichborn-Kjennerud, Tom Mcadams, (2018). Assortative mating and intergenerational transmission of ADHD. Behavior Genetics s. 524-524.
- Eivind Ystrøm, Espen Moen Eilertsen, Line C. Gjerde, Fruhling Rijsdijk, Kristin Gustavson, Helga Ask, Ted Reichborn-Kjennerud, Tom Mcadams, (2018). Assortative mating and intergenerational transmission of ADHD.
- Ragnhild Eek Brandlistuen, Robin Ulriksen, Helga Ask, Laura Aniko Evensen, Synnve Schjølberg, Mari Vaage Wang, Heidi Aase, (2015). Pre- and Postnatal Paracetamol Exposure and Child Language Impairment.
- Helga Ask, (2014). Demens kan redusere partnerens psykiske helse .
- Helga Ask, Trine Waaktaar, Karoline Brobakke Seglem, Svenn Torgersen, (2014). Causes of co-occurring somatic, anxious and depressive symptoms in adolescents.
- Karoline Brobakke Seglem, Svenn Torgersen, Helga Ask, Trine Waaktaar, (2014). Impulsivity, delinquency and substance abuse in adolescence – Can common genetic or environmental factors explain why these traits often co-occur?.
- Helga Ask, Norun Hjertager Krog, Kristian Tambs, (2009). Impact of hearing impairment on spousal mental health.
- Norun Hjertager Krog, Bo Lars Engdahl, Ellen Kvestad, Helga Ask, Kristian Tambs, (2008). Tinnitus Symtoms Intensity and Depression: results from a General Population Study.
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