Elisabeth Toverud Landaas

• Landaas, Elisabeth Toverud; Storm, Margrethe Larsdatter; Tollånes, Mette Christophersen; Barlinn, Regine; Kran, Anne-Marte Bakken; Bragstad, Karoline; Christensen, Andreas & Andreassen, Trude (2021). Diagnostic performance of a SARS-CoV-2 rapid antigen test in a large, Norwegian cohort. Journal of Clinical Virology.  ISSN 1386-6532.  137 . doi: 10.1016/j.jcv.2021.104789 Show summary

  Background Rapid antigen tests (RATs) may be included in national strategies for handling the SARS-CoV-2 pandemic, as they provide test results rapidly, are easily performed outside laboratories, and enable immediate contract tracing. However, before implementation further clinical evaluation of test sensitivity is warranted. Objectives To examine the performance of Abbott’s Panbio™ COVID-19 Ag Rapid Test Device for SARS-CoV-2 testing in a low to medium prevalence setting in Norway. Study design A prospective study comparing the results of the Panbio RAT with PCR in 4857 parallel samples collected at a SARS-CoV-2 test station in Oslo, and from COVID-19 outbreaks in six Norwegian municipalities. Results A total of 4857 cases were included in the study; 3991 and 866 cases from the test station and the outbreak municipalities, respectively. The prevalence at the test station in Oslo was 6.3 %, and the overall sensitivity of the RAT was 74 %. Increased sensitivity was observed in patients who experienced symptoms (79 %) and when considering samples with viral loads above estimated level of infectivity (84 %), while it was lower in asymptomatic persons (55 %). In the outbreak municipalities, the overall prevalence was 6.9 %, and the total sensitivity of the RAT was 70 %. Conclusions Our results indicate that the test correctly identified most infectious individuals. Nevertheless, the sensitivity is considerably lower than for PCR, and it is important that the limitations of the test are kept in mind in the follow-up of tested individuals.

• Grünewald, Lena; Landaas, Elisabeth Toverud; Geissler, Julia; Weber, Heike; Quast, Carina; Röh, Simone; Schartner, Christoph; Lesch, Klaus-Peter; Romanos, Marcel; Kittel-Schneider, Sarah; Binder, Elisabeth & Reif, Andreas (2016). Functional impact of an ADHD-associated DIRAS2 promoter polymorphism. Neuropsychopharmacology.  ISSN 0893-133X.  41(13), s 3025- 3031 . doi: 10.1038/npp.2016.113
• Landaas, Elisabeth Toverud; Aarsland, Tore Ivar Malmei; Ulvik, Arve; Halmøy, Anne; Ueland, Per Magne & Haavik, Jan (2016). Vitamin levels in adults with ADHD. BJPsych Open.  ISSN 2056-4724. . doi: 10.1192/bjpo.bp.116.003491
• Aarsland, Tore Ivar Malmei; Landaas, Elisabeth Toverud; Hegvik, Tor-Arne; Ulvik, Arve; Halmøy, Anne; Ueland, Per Magne & Haavik, Jan (2015). Serum concentrations of kynurenines in adult patients with attention-deficit hyperactivity disorder (ADHD): A case-control study. Behavioral and Brain Functions.  ISSN 1744-9081.  11(36) . doi: 10.1186/s12993-015-0080-x
• Weber, Heike; Kittel-Schneider, Sarah; Heupel, Julia; Weißflog, Lena; Kent, Lindsey; Freudenberg, Florian; Alttoa, Aet; Post, Antonia; Herterich, Sabine; Haavik, Jan; Halmøy, Anne; Fasmer, Ole Bernt; Landaas, Elisabeth Toverud; Johansson, Stefan; Cormand, Bru; Ribasés, Marta; Sánchez-Mora, Cristina; Ramos-Quiroga, Josep Antonio; Franke, Barbara; Lesch, Klaus-Peter & Reif, Andreas (2015). On the role of NOS1 ex1f-VNTR in ADHD-allelic, subgroup, and meta-analysis. American Journal of Medical Genetics Part B: Neuropsychiatric Genetics.  ISSN 1552-4841.  168(6), s 445- 458 . doi: 10.1002/ajmg.b.32326
• Landaas, Elisabeth Toverud; Halmøy, Anne; Ødegaard, Ketil Joachim; Fasmer, Ole Bernt & Haavik, Jan (2012). The impact of cyclothymic temperament in adult ADHD. Journal of Affective Disorders.  ISSN 0165-0327.  142(1-3), s 241- 247 . doi: 10.1016/j.jad.2012.04.034
• Landaas, Elisabeth Toverud; Johansson, Stefan; Halmøy, Anne; Ødegaard, Ketil Joachim; Fasmer, Ole Bernt & Haavik, Jan (2011). Bipolar disorder risk alleles in adult ADHD patients. Genes, Brain and Behavior.  ISSN 1601-1848.  10(4), s 418- 423 . doi: 10.1111/j.1601-183X.2011.00680.x
• Landaas, Elisabeth Toverud; Johansson, Stefan; Halmøy, Anne; Ødegaard, Ketil Joachim; Fasmer, Ole Bernt & Haavik, Jan (2011). No association between the serotonin transporter gene polymorphism 5-HTTLPR and cyclothymic temperament as measured by TEMPS-A. Journal of Affective Disorders.  ISSN 0165-0327.  129(1-3), s 308- 312 . doi: 10.1016/j.jad.2010.08.028
• Sánchez-Mora, Cristina; Ribases, Marta; Casas, Miquel; Bayes, Mònica; Bosch, Rosa; Fernàndez-Castillo, Noèlia; Brunso, Lucas; Jacobsen, Kaya Kvarme; Landaas, Elisabeth Toverud; Lundervold, Astri; Gross-Lesch, Silke; Kreiker, Susanne; Jacob, Christian P.; Lesch, Klaus-Peter; Buitelaar, Jan K.; Hoogman, Martine; Kiemeney, Lambertus A.; Kooij, J.J. Sandra; Mick, Eric O.; Asherson, Philip; Faraone, Stephen V.; Franke, Barbara; Reif, Andreas; Johansson, Stefan; Haavik, Jan; Ramos-Quiroga, Josep Antonio & Cormand, Bru (2011). Exploring DRD4 and its interaction with SLC6A3 as possible risk factors for adult ADHD: a meta-analysis in four european populations. American Journal of Medical Genetics.  ISSN 0148-7299.  156B(5), s 600- 612 . doi: 10.1002/ajmg.b.31202
• Franke, Barbara; Vasquez, Alejandro Arias; Johansson, Stefan; Hoogman, Martine; Romanos, Jasmin; Boreatti-Hümmer, Andrea; Heine, Monika; Jacob, Christian P.; Lesch, Klaus-Peter; Casas, Miguel; Ribases, Marta; Bosch, Rosa; Sánchez-Mora, Cristina; Gómez-Barros, Núria; Fernàndez-Castillo, Noèlia; Bayes, Mònica; Halmøy, Anne; Halleland, Helene; Landaas, Elisabeth Thoverud; Fasmer, Ole Bernt; Knappskog, Per Morten; Heister, Angelien J.G.A.M.; Kiemeney, Lambertus A.; Kooij, J.J. Sandra; Boonstra, A. Marije; Kan, Cees C.; Asherson, Philip; Faraone, Stephen V.; Buitelaar, Jan K.; Haavik, Jan; Cormand, Bru; Ramos-Quiroga, Josep Antonio & Reif, Andreas (2010). Multicenter analysis of the SLC6A3/DAT1 VNTR haplotype in persistent ADHD suggests differential involvement of the gene in childhood and persistent ADHD. Neuropsychopharmacology.  ISSN 0893-133X.  35(3), s 656- 664 . doi: 10.1038/npp.2009.170
• Johansson, Stefan; Halmøy, Anne; Mavroconstanti, Thegna; Jacobsen, Kaya Kvarme; Landaas, Elisabeth Thoverud; Reif, Andreas; Jacob, Christian P.; Boreatti-Hümmer, Andrea; Kreiker, Susanne; Lesch, Klaus-Peter; Kan, Cees C.; Kooij, J.J. Sandra; Kiemeney, Lambertus A.; Buitelaar, Jan K.; Franke, Barbara; Ribases, Marta; Bosch, Rosa; Bayes, Mònica; Casas, Miguel; Ramos-Quiroga, Josep Antonio; Cormand, Bru; Knappskog, Per Morten & Haavik, Jan (2010). Common variants in the TPH1 and TPH2 regions are not associated with persistent ADHD in a combined sample of 1,636 adult cases and 1,923 controls from four European populations. American Journal of Medical Genetics.  ISSN 0148-7299.  153B(5), s 1008- 1015 . doi: 10.1002/ajmg.b.31067
• Landaas, Elisabeth Thoverud; Johansson, Stefan; Jacobsen, Kaya Kvarme; Ribases, Marta; Bosch, Rosa; Sánchez-Mora, Cristina; Jacob, Christian P.; Boreatti-Hümmer, Andrea; Kreiker, Susanne; Lesch, Klaus-Peter; Kiemeney, Lambertus A.; Kooij, J.J. Sandra; Kan, Cees C.; Buitelaar, Jan K.; Faraone, Stephen V.; Halmøy, Anne; Ramos-Quiroga, Josep Antonio; Cormand, Bru; Reif, Andreas; Franke, Barbara; Mick, Eric O.; Knappskog, Per Morten & Haavik, Jan (2010). An international multicenter association study of the serotonin transporter gene in persistent ADHD. Genes, Brain and Behavior.  ISSN 1601-1848.  9(5), s 449- 458 . doi: 10.1111/j.1601-183X.2010.00567.x
• Franke, Barbara; Vasquez, Alejandro Arias; Johansson, Stefan; Hoogman, Martine; Romanos, Jasmin; Boreatti-Hümmer, Andrea; Heine, Monika; Jacob, Christian P.; Lesch, Klaus-Peter; Casas, Miguel; Ribases, Marta; Bosch, Rosa; Sánchez-Mora, Cristina; Gómez-Barros, Núria; Fernàndez-Castillo, Noèlia; Bayes, Mònica; Halmøy, Anne; Halleland, Helene; Landaas, Elisabeth Thoverud; Fasmer, Ole Bernt; Knappskog, Per Morten; Heiste, Angelien J.G.A.M.; Kiemeney, Lambertus A.; Kooij, J.J. Sandra; Boonstra, A. Marije; Kan, Cees C.; Asherson, Philip; Faraone, Stephen V.; Buitelaar, Jan K.; Haavik, Jan; Cormand, Bru; Ramos-Quiroga, Josep Antonio & Reif, Andreas (2009). Multicenter analysis of the SLC6A3/DAT1 VNTR haplotype in persistent ADHD suggests differential involvement of the gene in childhood and persistent ADHD. Neuropsychopharmacology.  ISSN 0893-133X.  35, s 656- 664 . doi: 10.1038/npp.2009.170

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• Landaas, Elisabeth Toverud (2013). Attention-deficit/hyperactivity disorder (ADHD) in adults – Mood instability and genetic risk factors.
• Landaas, Elisabeth Toverud & Haavik, Jan (2011). An international multicenter association study of the serotonin transporter gene in persistent ADHD.

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