Academic article

• Sahrai Saeed; Ragnhild Stokke Lundetræ; Andrea Romarheim et al. (2026). Impact of obstructive sleep apnea and comorbid insomnia on all-cause mortality: a prospective cohort study of 2401 patients with 6-year follow-up. (external link)
• Emilie Johanning Bari; Susanne Hansen; Patrik Sandin et al. (2026). Identifying an At-Risk Asthma Phenotype: Allergy and Recurrent Infections Predict Severe Disease. (external link)
• Susanne Hansen; Anna von Bülow; Alexandra Cooper et al. (2026). From mild-to-moderate to severe asthma: risk factors and patient profiles from the NORDSTAR cohort. (external link)
• Anne Kristine Brekka; Petrine Veierød Solli; Solfrid Indrekvam et al. (2026). Laryngeal Responses During Non-Invasive Ventilation in Stable Chronic Obstructive Pulmonary Disease: An Observational Study. (external link)
• Andrea Romarheim; Ragnhild Stokke Lundetræ; Ingvild Saxvig et al. (2026). Prevalence and Predictors of Obstructive Sleep Apnea in Men and Women from an Outpatient Clinic Cohort: Focus on Clinical Characteristics, Cardiovascular Disease, and Serum Biomarkers. (external link)
• Guri Dahle Kringeland; Solveig Tangedal; Daniel Julian et al. (2026). Antimicrobial resistance genes and antibiotic use in chronic lung disease: a bronchoscopy study of the lower airways microbiome. (external link)
• Trygve Müller Jonassen; Bjørn Bjorvatn; Sahrai Saeed et al. (2026). Impact of obstructive lung disease and sleep apnea symptoms on cardiovascular risk and all-cause mortality: insights from a community-dwelling cohort. (external link)
• Eileen Wang; William Henley; Désirée Larenas-Linnemann et al. (2025). Response to Biologics Along a Gradient of T2 Involvement in Patients With Severe Asthma: A Data-Driven Biomarker Clustering Approach. (external link)
• Andrea Romarheim; Sverre Lehmann; Bjørn Bjorvatn et al. (2025). Overcoming an underdiagnosed respiratory condition: should more patients with cardiovascular complications be screened for obstructive sleep apnea?. (external link)
• Tomas Mikal Lind Eagan; Rune Nielsen; Ingvild Haaland et al. (2025). Inflammatory cells and remodeling in bronchial biopsies from COPD patients and controls. (external link)
• Erik Vevatne Øverland; August Arentz Sunnarvik Waaraas; Ragnhild Stokke Lundetræ et al. (2025). No association between obstructive sleep apnea and restless legs syndrome: results from a large hospital-based cross-sectional study. (external link)
• Florence Schleich; Désirée Larenas-Linnemann; Alan Altraja et al. (2025). Biomarker profile and disease burden associated with intermittent and long-term oral corticosteroid use in patients with severe asthma prior to biologic initiation in real-life (STAR). (external link)
• Kristel Svalland Knudsen; Gunnar Reksten Husebø; Rune Nielsen et al. (2025). Whole genome sequencing of the pulmonary microbiome in interstitial lung disease subtypes. (external link)
• Ragnhild S. Lundetræ; Sverre Lehmann; Ingvild W. Saxvig et al. (2025). Severity of obstructive sleep apnea is related to C-reactive protein levels: The influence of comorbidities and self-reported sleep duration. (external link)
• Wenjia Chen; Trung N. Tran; John Townend et al. (2025). Impact of biologics initiation on oral corticosteroid use in the International Severe Asthma Registry and the Optimum Patient Care Research Database: a pooled analysis of real-world data. (external link)
• Ulrik Leidland Opsahl; Morten Eirik Berge; Sverre Lehmann et al. (2025). Prediction of non-responders to oral appliance treatment of obstructive sleep apnea: a pilot study. (external link)
• Ann-Katrin Johansson; Ridwaan Omar; Sverre Lehmann et al. (2024). Oral Health Related Factors Predicting Severe COVID-19 Disease in Elderly Swedes. (external link)
• Solveig Tangedal; Rune Nielsen; Marianne Aanerud et al. (2024). Lower airway microbiota in COPD and healthy controls. (external link)
• Ulrik Leidland Opsahl; Morten Eirik Berge; Sverre Lehmann et al. (2024). Elastic Bands Improve Oral Appliance Treatment Effect on Obstructive Sleep Apnoea: A Randomised Crossover Trial. (external link)
• Åse Johnsen Rogde; Sverre Lehmann; Thomas Halvorsen et al. (2023). Prevalence and impact of exercise-induced laryngeal obstruction in asthma: a study protocol for a cross-sectional and longitudinal study. (external link)
• Susanne Hansen; Anna von Bülow; Patrik Sandin et al. (2023). Prevalence and management of severe asthma in the Nordic countries: findings from the NORDSTAR cohort. (external link)
• Gerd Ann-Katrin Janmyr Johansson; Ridwaan Omar; Sverre Lehmann et al. (2023). General and orofacial symptoms associated with acute and long COVID in 80- and 90-year-old Swedish COVID-19 survivors. (external link)
• Wenjia Chen; Trung N. Tran; Mohsen Sadatsafavi et al. (2023). Impact of Inititing Biologics in Patients With Severe Asthma on Long-term Oral Corticosteroids or Frequent Rescue Steroids (GLITTER): Data From the International Severe Asthma Registry. (external link)
• Paul E. Pfeffer; Nasloon Ali; Ruth Murray et al. (2023). Comparative effectiveness of Anti-IL5 and Anti-IgE biologic classes in patients with severe asthma eligible for both. (external link)
• Kristel Svalland Knudsen; Sverre Lehmann; Rune Nielsen et al. (2022). The lower airways microbiome and antimicrobial peptides in idiopathic pulmonary fibrosis differ from chronic obstructive pulmonary disease. (external link)
• Wenjia Chen; Mohsen Sadatsafavi; Trung N. Tran et al. (2022). Characterization of patients in the International Severe Asthma Registry with high steroid exposure who did or did not initiate biologic therapy. (external link)
• Karin Elisabeth Sundt Mjelle; Sverre Lehmann; Ingvild W. Saxvig et al. (2022). Association of Excessive Sleepiness, Pathological Fatigue, Depression, and Anxiety With Different Severity Levels of Obstructive Sleep Apnea. (external link)
• Trygve Müller Jonassen; Bjørn Bjorvatn; Ingvild W. Saxvig et al. (2022). Clinical information predicting severe obstructive sleep apnea: A cross-sectional study of patients waiting for sleep diagnostics. (external link)
• Sahrai Saeed; Synnøve Andrea Romarheim; Giuseppe Mancia et al. (2022). Characteristics of hypertension and arterial stiffness in obstructive sleep apnea: A Scandinavian experience from a prospective study of 6408 normotensive and hypertensive patients. (external link)
• Kristel Svalland Knudsen; Sverre Lehmann; Rune Nielsen et al. (2022). The lower airways microbiota and antimicrobial peptides indicate dysbiosis in sarcoidosis. (external link)
• Åse Johnsen Rogde; Sverre Lehmann; Hege Synnøve Havstad Clemm et al. (2021). Inducible laryngeal obstruction in asthma. (external link)
• Ragnhild Stokke Lundetræ; Ingvild W. Saxvig; Harald Aurlien et al. (2021). Effect of Continuous Positive Airway Pressure on Symptoms and Prevalence of Insomnia in Patients With Obstructive Sleep Apnea: A Longitudinal Study. (external link)
• Kjersti Gjerde; Sverre Lehmann; Bjørn Bjorvatn et al. (2021). Partner perceptions are associated with objective sensor-measured adherence to oral appliance therapy in obstructive sleep apnea. (external link)
• Elise Orvedal Leiten; Tomas Mikal Eagan; Einar Marius Hjellestad Martinsen et al. (2020). Complications and discomfort after research bronchoscopy in the MicroCOPD study. (external link)
• Ragnhild Stokke Lundetræ; Ingvild W. Saxvig; Sverre Lehmann et al. (2020). Effect of continuous positive airway pressure on symptoms of anxiety and depression in patients with obstructive sleep apnea. (external link)
• Ulrik Leidland Opsahl; Morten Eirik Berge; Sverre Lehmann et al. (2020). Acoustic pharyngometry - A new method to facilitate oral appliance therapy. (external link)
• Kirk Geale; Hater Darabi; Maria Linh et al. (2020). NORDSTAR: paving the way for a new era in asthma research. (external link)
• Einar Marius Hjellestad Martinsen; Tomas Mikal Eagan; Elise Orvedal Leiten et al. (2019). Motivation and response rates in bronchoscopy studies. (external link)
• Heidi Øksnes Markussen; Sverre Lehmann; Roy Miodini Nilsen et al. (2019). Health-related quality of life as predictor for mortality in patients treated with long-term mechanical ventilation. (external link)
• Sverre Lehmann; Thomas Ringbæk; Anders Løkke et al. (2019). A randomized trial to determine the impact of indacaterol/glycopyrronium on nighttime oxygenation and symptoms in patients with moderate-to-severe COPD: The DuoSleep study. (external link)
• Ulrik Leidland Opsahl; Anders Johansson; Morten Berge et al. (2018). Akustisk pharyngometri for bedre resultat av behandling med søvnapnéskinner. (external link)
• Ragnhild Stokke Lundetræ; Ingvild W. Saxvig; Ståle Pallesen et al. (2018). Prevalence of parasomnias in patients with obstructive sleep apnea. A registry-based cross-sectional study. (external link)
• Ragnhild L. Tveit; Sverre Lehmann; Bjørn Bjorvatn (2018). Prevalence of several somatic diseases depends on the presence and severity of obstructive sleep apnea. (external link)
• Bjørn Bjorvatn; Thomas Berge; Sverre Lehmann et al. (2018). No effect of a self-help book for insomnia in patients with obstructive sleep apnea and comorbid chronic insomnia – a randomized controlled trial.. (external link)
• Bjørn Bjorvatn; Narvini Rajakulendren; Sverre Lehmann et al. (2018). Increased severity of obstructive sleep apnea is associated with less anxiety and depression. (external link)
• Marit Elisabeth Aardal; Lene Løvendahl Svendsen; Sverre Lehmann et al. (2017). A pilot study of hot-wire, ultrasonic and wedge-bellows spirometer inter- and intra-variability. (external link)
• Anders Kjellevold Storesund; Anders Johansson; Bjørn Bjorvatn et al. (2017). Oral appliance treatment outcome can be predicted by continuous positive airway pressure in moderate to severe obstructive sleep apnea. (external link)
• Trine Herland; Geir Egil Eide; Sverre Lehmann et al. (2017). Lungefunksjon som risikofaktor for osteoporose og hoftebrudd. (external link)
• Kjersti Gjerde; Sverre Lehmann; Ingvill Fjell Naterstad et al. (2017). Reliability of an adherence monitoring sensor embedded in an oral appliance used for treatment of obstructive sleep apnea. (external link)
• Rune Grønseth; Christine Drengenes; Harald G Wiker et al. (2017). Protected sampling is preferable in bronchoscopic studies of the airway microbiome. (external link)
• Heidi Øksnes Markussen; Sverre Lehmann; Roy Miodini Nilsen et al. (2017). Factors associated with change in health-related quality of life among individuals treated with long-term mechanical ventilation, a 6-year follow-up study. (external link)
• Trine Herland; Ellen M Apalset; Geir Egil Eide et al. (2016). Airflow limitation as a risk factor for low bone mineral density and hip fracture.. (external link)
• Trine Herland; Ellen M Apalset; Geir Egil Eide et al. (2016). Airflow limitation as a risk factor for low bone mineral density and hip fracture. The Hordaland Health Study (HUSK) – 10 years follow-up of a general population. (external link)
• Anne Marie Gabrielsen; Torbjørn Omland; Mette Brokner et al. (2016). The effect of surgical and non-surgical weight loss on N-terminal pro-B-type natriuretic peptide and its relation to obstructive sleep apnea and pulmonary function. (external link)
• Trygve Muller Jonassen; Tomas Mikal Eagan; Bjørn Bjorvatn et al. (2016). Associations between obstructive lung disease and symptoms of obstructive sleep apnoea in a general population. (external link)
• Bjørn Bjorvatn; Sverre Lehmann; Shashi Gulati et al. (2015). Prevalence of excessive sleepiness is higher whereas insomnia is lower with greater severity of obstructive sleep apnea. (external link)
• Heidi Øksnes Markussen; Sverre Lehmann; Roy Miodini Nilsen et al. (2015). The Norwegian version of the Severe Respiratory Insufficiency Questionnaire. (external link)
• Kjersti Gjerde; Sverre Lehmann; Morten Eirik Berge et al. (2015). Oral appliance treatment in moderate and severe obstructive sleep apnoea patients non-adherent to CPAP. (external link)
• Anke Neukamm; Arne Didrik Høiseth; Gunnar Einvik et al. (2015). Rosuvastatin treatment in stable chronic obstructive pulmonary disease (RODEO): a randomized controlled trial. (external link)
• Bjørn Bjorvatn; Ståle Pallesen; Janne Grønli et al. (2014). Prevalence and correlates of insomnia and excessive sleepiness in adults with obstructive sleep apnea symptoms. (external link)
• Ingrid Skinlo Rokstad; Kirsten Skinlo Rokstad; Sissel Holmen et al. (2013). Electronic optional guidelines as a tool to improve the process of referring patients to specialized care: An intervention study. (external link)
• Lars Thomassen; Anette Storstein; Mirza Jusufovic et al. (2011). En kvinne med tilbakevendende arteriovenøse tromboser. (external link)
• Sophie Charlotte Hvidsten; Lene Storesund; Tore Wentzel-Larsen et al. (2010). Prevalence and predictors of undiagnosed chronic obstructive pulmonary disease in a Norwegian adult general population. (external link)
• Sverre Lehmann; Per S. Bakke; Geir Egil Eide et al. (2008). Clinical data discriminating between adults with positive and negative results on bronchodilator testing. (external link)
• Amund Gulsvik; Sjur Humerfelt; Per S. Bakke et al. (2008). Norwegian population surveys on respiratory health in adults: objectives, design, methods, quality controls and response rates. (external link)
• Sverre Lehmann; Per Bakke; Geir Egil Eide et al. (2007). Bronchodilator response to adrenergic (beta) (2)-agonists: Relationship to symptoms in an adult community. (external link)
• Ane Johannessen; Sverre Lehmann; Ernst Omenaas et al. (2006). Post-bronchodilator spirometry reference values in adults and implications for disease management. (external link)
• Ernst Omenaas; Ronald Dahl; Per Bakke et al. (2006). Nordic physician's management of asthma and chronic obstructive pulmonary disease. (external link)
• Sverre Lehmann; Per Bakke; Geir Egil Eide et al. (2006). Bronchodilator reversibility testing in an adult general population; the importance of smoking and anthropometrical variables on the response to a beta(2)-agonist. (external link)
• Sverre Lehmann; Stein Emil Vollset; Harald Nygaard et al. (2004). Factors determining performance of bronchodilator reversibility tests in middle-aged and elderly. (external link)

Academic literature review

• Désirée Larenas-Linnemann; Chin Kook Rhee; Alan Altraja et al. (2025). International Severe Asthma Registry (ISAR): 2017–2024 Status and Progress Update. (external link)
• Sahrai Saeed; Synnøve Andrea Romarheim; Eivind Solheim et al. (2022). Cardiovascular remodeling in obstructive sleep apnea: focus on arterial stiffness, left ventricular geometry and atrial fibrillation. (external link)
• Celeste Porsbjerg; Charlotte Ulrik; Tina Skjold et al. (2018). Nordic consensus statement on the systematic assessment and management of possible severe asthma in adults. (external link)

Conference abstract

• Trygve Muller Jonassen; Tomas Mikal Eagan; Sverre Lehmann (2012). Daytime respiratory symptoms are associated with obstructive sleep apnoea syndrome. (external link)

Conference lecture

• Anne Kristine Brekka; Petrine Veierød Solli; Solfrid Indrekvam et al. (2025). Laryngeal ultrasound to observe laryngeal movements during non-invasive ventilation in COPD. (external link)
• Anne Kristine Brekka; Solfrid Indrekvam; Petrine Veierød Solli et al. (2024). Laryngeal observations during non-invasive ventilation titration in chronic obstructive pulmonary disease. (external link)
• Anke Neukamm; Arne Didrik Høiseth; Gunnar Einvik et al. (2014). Effect Of Rosuvastatin Treatment In Stable COPD (RODEO). (external link)

Conference poster

• Aase Johnsen Rogde; Haakon Kristian Kvidaland; Sverre Lehmann et al. (2025). Exercise-induced laryngeal obstruction in a hospital-based cohort with asthma. (external link)
• Susanne Hansen; Anna von Bülow; Patrik Sandin et al. (2022). The prevalence of severe asthma, use of oral corticosteroid and management strategies in the Nordic countries: results from the pan-Nordic NORDSTAR cohort. (external link)
• Heidi Øksnes Markussen; Sverre Lehmann; Roy Miodini Nilsen et al. (2017). Health related quality of life in patients treated with long-term mechanical ventilation. (external link)
• Ane Johannessen; Sverre Lehmann; Ernst Omenaas et al. (2005). Strategy for selecting a spirometric reference population. (external link)

Doctoral thesis (PhD)

• Sverre Lehmann (2008). Adrenergic bronchodilator test in community. Applicability and relationship to anthropometrical variables, smoking, respiratory symptoms, and lung function. (external link)

Journal corrigendum

• Morten Eirik Berge; Anders Johansson; Shashi Gulati et al. (2014). Skinnebehandling mot søvapne. (external link)

Lecture

• Bjørn Bjorvatn; Sverre Lehmann; Anders Johansson (2014). Søvnforstyrrelser. (external link)

Letter to the editor

• Wenjia Chen; Trung N. Tran; Mohsen Sadatsafavi et al. (2024). Reply to “Exploring the long-term effects of biologic initiation in severe asthma: Insights from the International Severe Asthma Registry”. (external link)
• Morten Eirik Berge; Anders Johansson; Bjørn Bjorvatn et al. (2014). Oral appliance for sleep apnea. (external link)
• Ane Johannessen; Sverre Lehmann; Ernst Omenaas et al. (2007). Defining the lower limit of normal for FEV1/FVC - From the authors. (external link)
• Sverre Lehmann; J Grebstad; O Fondenes et al. (2005). Behandling av obstruktiv søvnapné. (external link)

Media feature article

• Sverre Lehmann; Steinar Skrede; Kristel Svalland Knudsen et al. (2022). Hva skjer med meg hvis jeg legges inn med covid-19 på Haukeland?. (external link)
• Steinar Skrede; Sverre Lehmann; Knut Anders Mosevoll et al. (2022). Satsning på overvåkingsmedisin gjør oss bedre rustet. (external link)

Media interview

• Elisabeth Lofthus; Anders Johansson; Sverre Lehmann (2023). Søvnapnè: Virker umiddelbart. (external link)

Popular science article

• Anders Johansson; Bjørn Bjorvatn; Erik Saxegaard et al. (2018). Stor interesse for odontologisk søvnmedisin og søvnapné i Norge. (external link)

Professional article

• Bernt Bøgvald Aarli; Sverre Lehmann (2022). Alvorlig astma. (external link)
• Anders Johansson; Kjersti Gjerde; Sverre Lehmann et al. (2014). Skinnebehandling mot søvnapnè. (external link)

See a complete overview of publications in NVA.