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Knut Øymar's picture

Knut Øymar

Professor
  • E-mailKnut.Oymar@uib.no
  • Phone+47 51 51 83 58
  • Visitor Address
    Haukeland universitetssykehus, Laboratoriebygget
  • Postal Address
    Postboks 7804
    5020 Bergen
Journal articles
  • Aarthun, Antje; Øymar, Knut; Akerjordet, Kristin. 2019. Health professionals’ involvement of parents in decision-making in interprofessional practice at the hospital. Journal of Interprofessional Care. 1-11. doi: 10.1080/13561820.2019.1632816
  • Aarthun, Antje; Øymar, Knut; Akerjordet, Kristin. 2019. Parental involvement in decision-making about their child's health care at the hospital. Nursing Open. 6: 50-58. doi: 10.1002/nop2.180
  • Barstad, Bjørn; Tveitnes, Dag; Dalen, Ingvild; Noraas, Sølvi; Ask, Ingvild; Bosse, Franziskus Johannes; Øymar, Knut. 2019. The B-lymphocyte chemokine CXCL13 in the cerebrospinal fluid of children with Lyme neuroborreliosis: associations with clinical and laboratory variables. Infectious Diseases. 51: 856-863. doi: 10.1080/23744235.2019.1671988
  • Engan, Mette; Vollsæter, Maria; Øymar, Knut; Markestad, Trond; Eide, Geir Egil; Halvorsen, Thomas; Juliusson, Petur Benedikt; Clemm, Hege Synnøve Havstad. 2019. Comparison of physical activity and body composition in a cohort of children born extremely preterm or with extremely low birth weight to matched term-born controls: a follow-up study. BMJ Paediatrics Open. 3:e000481: 1-11. doi: 10.1136/bmjpo-2019-000481
  • Mikalsen, Ingvild Bruun; Dalen, Ingvild; Karlstad, Øystein; Eide, Geir Egil; Magnus, Maria Christine; Nystad, Wenche; Øymar, Knut. 2019. Airway symptoms and atopy in young children prescribed asthma medications: A large‐scale cohort study. Pediatric Pulmonology. 54: 1557-1566. doi: 10.1002/ppul.24437
  • Barstad, Bjørn; Quarsten, Hanne; Tveitnes, Dag; Noraas, Sølvi; Ask, Ingvild; Saeed, Maryam; Bosse, Franziskus Johannes; Vigemyr, Grete; Huber, Ilka; Øymar, Knut. 2018. Direct molecular detection and genotyping of borrelia burgdorferi sensu lato in cerebrospinal fluid of children with lyme neuroborreliosis. Journal of Clinical Microbiology. 56:e01868-17: 1-11. doi: 10.1128/JCM.01868-17
  • Byberg, Kristine Kjer; Mikalsen, Ingvild Bruun; Eide, Geir Egil; Forman, Michele R.; Juliusson, Petur Benedikt; Øymar, Knut. 2018. The associations between weight-related anthropometrics during childhood and lung function in late childhood: A retrospective cohort study. BMC Pulmonary Medicine. 18:10: 1-13. doi: 10.1186/s12890-017-0567-3
  • Førsvoll, Jostein Andersen; Øymar, Knut. 2018. The role of tonsillectomy in the Periodic Fever, Aphthous stomatitis, Pharyngitis and cervical Adenitis syndrome; A literature review. BMC Ear, Nose and Throat Disorders. 18:3: 1-7. doi: 10.1186/s12901-017-0049-5
  • Linde, Jørgen Erland; Perlman, Jeffrey M.; Øymar, Knut; Schulz, Jörn; Eilevstjønn, Joar; Thallinger, Monica; Kusulla, Simeon; Kidanto, Hussein Lesio; Ersdal, Hege Langli. 2018. Predictors of 24-h outcome in newborns in need of positive pressure ventilation at birth. Resuscitation. 129: 1-5. doi: 10.1016/j.resuscitation.2018.05.026
  • Mikalsen, Ingvild Bruun; Karlstad, Øystein; Furu, Kari; Øymar, Knut. 2018. Forskrivning av legemidler mot astma til barn i perioden 2004–15. Tidsskrift for Den norske legeforening. 138: 345-351. doi: 10.4045/tidsskr.17.0227
  • Mikalsen, Ingvild Bruun; Nassehi, Damoun; Øymar, Knut. 2018. Vortex whistle and smart phone application for peak flow recordings in asthmatic children: A feasibility study. Telemedicine journal and e-health. 25: 1077-1082. doi: 10.1089/tmj.2018.0270
  • Skromme, Kaia; Vollsæter, Maria; Øymar, Knut; Markestad, Trond; Halvorsen, Thomas. 2018. Respiratory morbidity through the first decade of life in a national cohort of children born extremely preterm. BMC Pediatrics. 18:102: 1-13. doi: 10.1186/s12887-018-1045-7
  • Vollsæter, Maria; Halvorsen, Thomas; Markestad, Trond; Øymar, Knut; Ueland, Per Magne; Meyer, Klaus; Midttun, Øivind; Monsen, Anne Lise Bjørke. 2018. Renal function and blood pressure in 11 year old children born extremely preterm or small for gestational age. PLOS ONE. 13:e0205558: 1-11. doi: 10.1371/journal.pone.0205558
  • Øymar, Knut; Mikalsen, Ingvild Bruun; Crowley, Suzanne. 2018. K. Øymar og medarbeidere svarer. Tidsskrift for Den norske legeforening. 138: 15-15. doi: 10.4045/tidsskr.17.1089
  • Aarthun, Antje; Øymar, Knut; Akerjordet, Kristin. 2017. How health professionals facilitate parents' involvement in decision-making at the hospital: A parental perspective. Journal of Child Health Care. 22: 108-121. doi: 10.1177/1367493517744279
  • Barstad, Bjørn; Tveitnes, Dag; Noraas, Sølvi; Ask, Ingvild; Saeed, Maryam; Bosse, Franziskus Johannes; Vigemyr, Grete; Huber, Ilka; Øymar, Knut. 2017. Cerebrospinal Fluid B-lymphocyte Chemoattractant CXCL13 in the Diagnosis of Acute Lyme Neuroborreliosis in Children. The Pediatric Infectious Disease Journal. 36: e286-e292. doi: 10.1097/INF.0000000000001669
  • Bentsen, Mariann; Markestad, Trond; Øymar, Knut; Halvorsen, Thomas. 2017. Lung function at term in extremely preterm-born infants: A regional prospective cohort study. BMJ Open. 7:e016868: 1-10. doi: 10.1136/bmjopen-2017-016868
  • Byberg, Kristine Kjer; Øymar, Knut; Eide, Geir Egil; Forman, Michele R.; Juliusson, Petur Benedikt. 2017. Exposure to preeclampsia in utero affects growth from birth to late childhood dependent on child's sex and severity of exposure: Follow-up of a nested case-control study. PLOS ONE. 12:e0176627: 1-15. doi: 10.1371/journal.pone.0176627
  • Linde, Jørgen Erland; Eilevstjønn, Joar; Øymar, Knut; Ersdal, Hege Langli. 2017. Feasibility of a prototype newborn resuscitation monitor to study transition at birth, measuring heart rate and ventilator parameters, an animal experimental study. BMC Research Notes. 10:235: 1-7. doi: 10.1186/s13104-017-2530-z
  • Linde, Jørgen Erland; Schulz, Jörn; Perlman, Jeffrey M.; Øymar, Knut; Blacy, Ladislaus; Kidanto, Hussein Lesio; Ersdal, Hege Langli. 2017. The relation between given volume and heart rate during newborn resuscitation. Resuscitation. 117: 80-86. doi: 10.1016/j.resuscitation.2017.06.007
  • Popperud, Trine Haug; Boldingh, Marion; Brunborg, Cathrine; Faiz, Kashif Waqar; Heldal, Anne Taraldsen; Maniaol, Angelina; Müller, Kai Ivar; Rasmussen, Magnhild; Øymar, Knut; Kerty, Emilia. 2017. Juvenile myasthenia gravis in Norway: A nationwide epidemiological study. European journal of paediatric neurology. 21: 312-317. doi: 10.1016/j.ejpn.2016.09.001
  • Øymar, Knut; Mikalsen, Ingvild Bruun; Crowley, Suzanne. 2017. Protrahert bakteriell bronkitt hos barn. Tidsskrift for Den norske legeforening. 137: 1-6. doi: 10.4045/tidsskr.16.0843
  • Øymar, Knut; Mikalsen, Ingvild Bruun; Nag, Torbjørn; Halvorsen, Thomas; Crowley, Suzanne. 2017. Systemiske steroider til førskolebarn med symptomer fra nedre luftveier. Tidsskrift for Den norske legeforening. 137: 698-699. doi: 10.4045/tidsskr.17.0245
  • Byberg, Kristine Kjer; Eide, Geir Egil; Forman, Michele R.; Juliusson, Petur Benedikt; Øymar, Knut. 2016. Body mass index and physical activity in early childhood are associated with atopic sensitization, atopic dermatitis and asthma in later childhoo. Clinical and Translational Allergy. 6:33: 1-9. doi: 10.1186/s13601-016-0124-9
  • Linde, Jørgen Erland; Schulz, Jörn; Perlman, Jeffrey M.; Øymar, Knut; Francis, Fortunata; Eilevstjønn, Joar; Ersdal, Hege Langli. 2016. Normal newborn heart rate in the first five minutes of life assessed by dry-electrode electrocardiography. Neonatology. 110: 231-237. doi: 10.1159/000445930
  • Mikalsen, Ingvild Bruun; Davis, Peter; Øymar, Knut. 2016. High flow nasal cannula in children: A literature review. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. 24:93. doi: 10.1186/s13049-016-0278-4
  • Monsen, Anne Lise Bjørke; Vollsæter, Maria; Ueland, Per Magne; Markestad, Trond; Øymar, Knut; Halvorsen, Thomas. 2016. Increased bronchial hyperresponsiveness and higher asymmetric dimethylarginine levels after fetal growth restriction. American Journal of Respiratory Cell and Molecular Biology. 56: 83-89. doi: 10.1165/rcmb.2016-0210OC
  • Edwards, Alan Martin; Bibawy, Dalia; Matthews, Sharon; Tongue, Nicky; Arshad, Syed Hasan; Carlsen, Karin C. Lødrup; Øymar, Knut; Pollock, Ian; Clifford, Rollo; Thomas, Anne; Gamanya, Rufaro; Vyas, Jui; Stevens, Michael T.; Carlsen, Kai-Håkon. 2015. Long-term use of a 4% sodium cromoglicate cutaneous emulsion in the treatment of moderate to severe atopic dermatitis in children. Journal of dermatological treatment (Print). 26: 541-547. doi: 10.3109/09546634.2015.1034077
  • Førsvoll, Jostein Andersen; Janssen, Emilius Adrianus Maria; Møller, Ingegerd; Wathne, Nina; Skaland, Ivar; Klos, Jan; Kristoffersen, Einar Klæboe; Øymar, Knut. 2015. Reduced number of CD8+ cells in tonsillar germinal centres in children with the periodic fever, aphthous stomatitis, pharyngitis and cervical adenitis syndrome. Scandinavian Journal of Immunology. 82: 76-83. doi: 10.1111/sji.12303
  • Mikalsen, Ingvild Bruun; Skeiseid, Liliane Merete; Tveit, Line Merete; Engelsvold, David Hugo; Øymar, Knut. 2015. Decline in admissions for childhood asthma, a 26-year period population-based study. Pediatric Allergy and Immunology. 26: 750-755. doi: 10.1111/pai.12372
  • Rettedal, Siren; Löhr, Iren Høyland; Bernhoff, Eva; Natås, Olav Bjarte; Sundsfjord, Arnfinn; Øymar, Knut. 2015. Extended-spectrum β-lactamase-producing Enterobacteriaceae among pregnant women in Norway: Prevalence and maternal-neonatal transmission. Journal of Perinatology. 35: 907-912. doi: 10.1038/jp.2015.82
  • Tveitnes, Dag; Øymar, Knut. 2015. Gender differences in childhood lyme neuroborreliosis. Behavioural Neurology. 2015. 6 pages. doi: 10.1155/2015/790762
  • Vollsæter, Maria; Skromme, Kaia; Satrell, Emma Elsa Carolina; Clemm, Hege Synnøve Havstad; Røksund, Ola Drange; Øymar, Knut; Markestad, Trond; Halvorsen, Thomas. 2015. Children born preterm at the turn of the millennium had better lung function than children born similarly preterm in the early 1990s. PLOS ONE. 10:e0144243. 17 pages. Published 2015-12-07. doi: 10.1371/journal.pone.0144243
  • Øymar, Knut; Mikalsen, Ingvild Bruun; Furu, Kari; Nystad, Wenche; Karlstad, Øystein. 2015. Prescription patterns of inhaled corticosteroids for preschool children - A Norwegian register study. Pediatric Allergy and Immunology. 26: 655-661. doi: 10.1111/pai.12429
  • Bigorgne, Amélie E.; Farin, Henner F.; Lemoine, Roxane; Mahlaoui, Nizar; Lambert, Nathalie; Gil, Marine; Schulz, Ansgar; Philippet, Pierre; Schlesser, Patrick; Abrahamsen, Tore G; Øymar, Knut; Davies, E. Graham; Ellingsen, Christian Lycke; Leteurtre, Emmanuelle; Moreau-Massart, Brigitte; Berrebi, Dominique; Bole-Feysot, Christine; Nischke, Patrick; Brousse, Nicole; Fischer, Alain; Clevers, Hans; de St Basile, Geneviève. 2014. TTC7A mutations disrupt intestinal epithelial apicobasal polarity. Journal of Clinical Investigation. 124: 328-337. doi: 10.1172/JCI71471
  • Byberg, Kristine Kjer; Øglænd, Bjørn Edvin; Eide, Geir Egil; Øymar, Knut. 2014. Birth after preeclamptic pregnancies: Association with allergic sensitization and allergic rhinoconjunctivitis in late childhood; a historically matched cohort study. BMC Pediatrics. 14. doi: 10.1186/1471-2431-14-101
  • Mikalsen, Ingvild Bruun; Halvorsen, Thomas; Øymar, Knut. 2014. Blood eosinophil counts during bronchiolitis are related to bronchial hyper-responsiveness and lung function in early adolescence. Acta Paediatrica. 103: 86-92. doi: 10.1111/apa.12432
  • Øymar, Knut; Bårdsen, Kjersti. 2014. Continuous positive airway pressure for bronchiolitis in a general paediatric ward; a feasibility study. BMC Pediatrics. 14. doi: 10.1186/1471-2431-14-122
  • Øymar, Knut; Skjerven, Håvard Ove; Mikalsen, Ingvild Bruun. 2014. Acute bronchiolitis in infants, a review. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. 22:23. doi: 10.1186/1757-7241-22-23
  • Førsvoll, Jostein Andersen; Kristoffersen, Einar Klæboe; Øymar, Knut. 2013. Incidence, clinical characteristics and outcome in Norwegian children with periodic fever, aphthous stomatitis, pharyngitis and cervical adenitis syndrome; a population-based study. Acta Paediatrica. 102: 187-192. doi: 10.1111/apa.12069
  • Førsvoll, Jostein Andersen; Kristoffersen, Einar Klæboe; Øymar, Knut. 2013. Elevated levels of CXCL10 in the Periodic Fever, Aphthous stomatitis, Pharyngitis and cervical Adenitis syndrome (PFAPA) during and between febrile episodes; an indication of a persistent activation of the innate immune system. Pediatric Rheumatology. 11. 10 pages. doi: 10.1186/1546-0096-11-38
  • Löhr, Iren Høyland; Rettedal, Siren; Natås, Olav Bjarte; Naseer, Mohammed Umaer; Øymar, Knut; Sundsfjord, Arnfinn. 2013. Long-term faecal carriage in infants and intra-household transmission of CTX-M-15-producing Klebsiella pneumoniae following a nosocomial outbreak. Journal of Antimicrobial Chemotherapy. 68: 1043-1048. doi: 10.1093/jac/dks502
  • Mikalsen, Ingvild Bruun; Halvorsen, Thomas; Eide, Geir Egil; Øymar, Knut. 2013. Severe bronchiolitis in infancy: Can asthma in adolescence be predicted? Pediatric Pulmonology. 48: 538-544. doi: 10.1002/ppul.22675
  • Mikalsen, Ingvild Bruun; Halvorsen, Thomas; Øymar, Knut. 2013. The optimal management for patients (Letter). Pediatric Pulmonology. 48: 936-936. doi: 10.1002/ppul.22753
  • Mikalsen, Ingvild Bruun; Halvorsen, Thomas; Øymar, Knut. 2013. Exhaled nitric oxide is related to atopy, but not asthma in adolescents with bronchiolitis in infancy. BMC Pulmonary Medicine. 13. doi: 10.1186/1471-2466-13-66
  • Rettedal, Siren; Löhr, Iren Høyland; Natås, Olav Bjarte; Sundsfjord, Arnfinn; Øymar, Knut. 2013. Risk factors for acquisition of CTX-M-15 extended-spectrum beta-lactamase-producing Klebsiella pneumoniae during an outbreak in a neonatal intensive care unit in Norway. Scandinavian Journal of Infectious Diseases. 45: 54-58. doi: 10.3109/00365548.2012.713116
  • Tveitnes, Dag; Hjetland, Reidar; Øymar, Knut. 2013. Tolking av serologiske testar. Tidsskrift for Den norske legeforening. 8. doi: 10.4045/tidsskr.13.0409
  • Mikalsen, Ingvild Bruun; Halvorsen, Thomas; Øymar, Knut. 2012. The outcome after severe bronchiolitis is related to gender and virus. Pediatric Allergy and Immunology. 23: 391-398. doi: 10.1111/j.1399-3038.2012.01283.x
  • Rettedal, Siren; Löhr, Iren Høyland; Natås, Olav Bjarte; Giske, Christian G.; Sundsfjord, Arnfinn; Øymar, Knut. 2012. First outbreak of extended-spectrum beta-lactamase-producing Klebsiella pneumoniae in a Norwegian neonatal intensive care unit; associated with contaminated breast milk and resolved by strict cohorting. Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS). 120: 612-621. doi: 10.1111/j.1600-0463.2012.02879.x
  • Tveitnes, Dag; Natås, Olav Bjarte; Skadberg, Øyvind; Øymar, Knut. 2012. Lyme meningitis, the major cause of childhood meningitis in an endemic area: a population based study. Archives of Disease in Childhood. 97: 215-220. doi: 10.1136/archdischild-2011-300526
  • Øymar, Knut. 2012. Bruk av inhalasjonssteroider hos førskolebarn. Tidsskrift for Den norske legeforening. 132: 160-162. doi: 10.4045/tidsskr.10.0742
  • Gilje, Ann Marit; Knudsen, Per Kristian; Øymar, Knut. 2011. Ei ung jente med magesmerter. Tidsskrift for Den norske legeforening. 131: 1199-1201. Published 2011-06-17. doi: 10.4045/tidskr.09.0887
  • Hagen, Inge; Øymar, Knut. 2009. Pharmacological differences between once daily and twice daily gentamicin dosage in newborns with suspected sepsis. Pharmacy World & Science. 31: 18-23. doi: 10.1007/s11096-008-9255-y
  • Røsvik, Alet Jenny; Øymar, Knut; Kvaløy, Jan Terje; Berget, Magne. 2009. Oxygen saturation in healthy newborns; influence of birth weight and mode of delivery. Journal of Perinatal Medicine. 37: 403-406. doi: 10.1515/JPM.2009.070
  • Røsvik, Atle; Øymar, Knut; Kvaløy, Jan Terje; Berget, Magne. 2009. Oxygen saturation in healthy newborns; influence of birth weight and mode of delivery. Journal of Perinatal Medicine. 37: 403-406.
  • Tveitnes, Dag; Øymar, Knut; Natås, Olav B. 2009. Laboratory data in children with Lyme neuroborreliosis, relation to clinical presentation and duration of symptoms. Scandinavian Journal of Infectious Diseases. 41: 355-362. doi: 10.1080/00365540902787666
  • Øymar, Knut; Halvorsen, Thomas. 2009. Emergency presentation and management of acute severe asthma in children. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. 17: 11.
  • Øymar, Knut; Tveitnes, Dag. 2009. Clinical characteristics of childhood Lyme neuroborreliosis in an endemic area of northern Europe. Scandinavian Journal of Infectious Diseases. 41: 88-94. doi: 10.1080/00365540802593453
  • Byberg, Kristine; Øymar, Knut; Aksnes, Lage. 2008. Fatty acids in cord blood plasma, the relation to soluble CD23 and subsequent atopy. Prostaglandins, Leukotrienes and Essential Fatty Acids. 78: 61-65. doi: 10.1016/j.plefa.2007.10.008
  • Øymar, Knut; Tveitnes, Dag. 2008. Økt forekomst av nevroborreliose hos barn. Tidsskrift for Den norske legeforening. 18. 2060-2061.
  • Førsvoll, Jostein A.; Øymar, Knut. 2007. C-reactive protein in the periodic fever, aphthous stomatitis, pharyngitis and cervical adenitis (PFAPA) syndrome. Acta Paediatrica. 96: 1670-1673. doi: 10.1111/j.1651-2227.2007.00499.x
  • Tveitnes, Dag; Øymar, Knut; Natås, Olav B. 2007. Acute facial nerve palsy in children: How often is it Lyme borreliosis? Scandinavian Journal of Infectious Diseases. 39: 425-431. doi: 10.1080/00365540601105764
  • Øymar, Knut. 2007. Allergivaksinasjon i Norge. Tidsskrift for Den norske legeforening. 127: 1036-1038.
  • Øymar, Knut; Kristoffersen, Einar Klæboe. 2007. Periodisk feber-syndrom hos barn. Tidsskrift for Den norske legeforening. 127: 1651-1653.
  • Øymar, Knut; Røsvik, Atle; Fossheim, Jan; Kjellerød, Kristian; El-Saggan, Ahmed. 2007. Regelmessige episoder med høy feber hos en liten gutt. Tidsskrift for Den norske legeforening. 127: 1662-1663.
  • Reindal, Lise; Øymar, Knut. 2006. Hospital admissions for wheezing and asthma in childhood - are they avoidable? Journal of Asthma. 43: 801-806. doi: 10.1080/02770900601034320
  • Øymar, Knut; Halvorsen, Thomas; Aksnes, Lage. 2006. Mast cell activation and leukotriene secretion in wheezing infants. Relation to respiratory syncytial virus and outcome. Pediatric Allergy and Immunology. 17: 37-42. doi: 10.1111/j.1399-3038.2005.00345
  • Aurivillius, M.; Øymar, Knut; Oxelius, V-A. 2005. Immunoglobulin heavy G2 chain (IGHG2) gene restriction in the development of severe respiratory syncytial virus infection. Acta Paediatrica. 94: 414-418.
  • Halvorsen, Thomas; Skadberg, Brit; Eide, Geir Egil; Røksund, Ola; Aksnes, Lage; Øymar, Knut. 2005. Characteristics of asthma and airway hyper-responsiveness after premature birth. Pediatric Allergy and Immunology. 16: 487-494.
  • Øymar, Knut; Aksnes, Lage. 2005. Increased levels of urinary leukotriene E4 in children with severe eczema/dermatitis syndrome. Allergy. European Journal of Allergy and Clinical Immunology. 60: 86-90.
  • Øymar, Knut; Aksnes, Lage. 2005. Increased levels of urinary leukotriene E4 in children with severe atopic eczema/dermatitis syndrome. Allergy. European Journal of Allergy and Clinical Immunology. 60.
  • Øymar, Knut; Aksnes, Lage. 2004. Urinary 9 alpha,11 beta-prostaglandin F-2 in children with atopic eczema/dermatitis syndrome: An indicator of mast cell activation? Acta Dermato-Venereologica. 84: 359-362.
  • Ellingsen, B; Ase, S; Øymar, Knut. 2003. Forebygging av respiratorisk syncytalvirus-infeksjoner med pailvizumlab. Tidsskrift for Den norske legeforening. 123: 941-943.
  • Engelsvold, David Hugo; Øymar, Knut. 2003. Innleggelser for akutt astme hos barn. Tidsskrift for Den norske legeforening. 123: 3517-3519.
  • Engelsvold, David Hugo; Øymar, Knut. 2003. Hospital admissions for childhood asthma in Rogaland, Norway from 1984 to 2000. Acta Paediatrica. 92: 910-916.
  • Øymar, Knut; Bjerknes, Robert. 2001. Urinary eosinophil protein X in children with asthma: influence of atopy and airway infections. Pediatric Allergy and Immunology. 12: 34-41.
  • Øymar, Knut; Havnen, Jakob; Halvorsen, Thomas; Bjerknes, Robert. 2001. Eosinophil counts and urinary eosinophil protein X in children hospitalized for wheezing during the first year of life: prediction of recurrent wheezing. Acta Paediatrica. 90: 843-849.
  • Øymar, Knut; Havnen, Jakob; Halvorsen, Thomas; Bjerknes, Robert. 2001. Eosinophil counts and urinary eosinophil protein X in children hospitalize for wheezing during the first year of life: prediction of recurrent wheezing. Acta Paediatrica. 90: 843-849.
  • Øymar, Knut. 2000. Bakteriell trakeitt hos barn. Tidsskrift for Den norske legeforening. 120: 1417-1419.
  • Øymar, Knut; Bjerknes, Robert. 2000. Urinary eosinophil protein X in children with atopic dermatitis: relation to atopy and disease activity. Allergy. European Journal of Allergy and Clinical Immunology. 55: 964-968.
  • Øymar, Knut; Lærdal, Åge; Bjerknes, Robert. 2000. Soluble CD30 and CD23 in cord blood are not related to atopy in early childhood. Pediatric Allergy and Immunology. 11: 220-224.
  • Øymar, Knut; Bjerknes, Robert. 1998. Differential patterns of circulating adhesion molecules in children with bronchial asthma, and acute bronchiolitis. Pediatric Allergy and Immunology. 9: 73-79.
  • Øymar, Knut; Bjerknes, Robert. 1998. Is serum eosinophil cationic protein in bronchiolitis a predictor of asthma? Pediatric Allergy and Immunology. 9: 204-207.
  • Øymar, Knut. 1997. Diskitt hos barn. Beskrivelse av tilstanden illustrert ved to eksempler. Tidsskrift for Den norske legeforening. 117: 2184-2186.
  • Øymar, Knut; Elsayed, Said; Bjerknes, Robert. 1997. Serum eosinophil cationic protein and interleukin-5 in childeren with bronchial asthma and acute bronchiolitis. Pediatric Allergy and Immunology. 7: 170-176.
  • Øymar, Knut; Fluge, Gjermund; Rosendahl, Karen. 1993. Residiverende abdominalsmerter. En prospektiv undersøkelse. Tidsskrift for Den norske legeforening. 2566-2568.
Reports and theses
  • Øymar, Knut. 2001. Eosinophil inflammation in children with asthma, wheezing and atopic dermatitis. Dr.med.. -. 122 pages.

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