ORIGINAL ARTICLE EPIDEMIOLOGY AND GENETICS Respiratory hypersensitivity reactions to NSAIDs in Europe: the global allergy and asthma network (GA 2 LEN) survey J. S. Makowska 1, *, P. Burney 2 , D. Jarvis 2 , T. Keil 3 , P. Tomassen 4 , J. Bislimovska 5 , G. Brozek 6 , C. Bachert 4 , J. Baelum 7 , C. Bindslev-Jensen 8 , J. Bousquet 9 , P. J. Bousquet 9 , C. Kai-H akon 10 , S. E. Dahlen 11 , B. Dahlen 12 , W. J. Fokkens 13 , B. Forsberg 14 , M. Gjomarkaj 15 , P. Howarth 16 , E. Salagean 16 , C. Janson 17 , L. Kasper 18 , U. Kraemer 19,20 , C. Louiro 21 , B. Lundback 22 , J. Minov 5 , E. Nizankowska-Mogilnicka 18 , N. Papadopoulos 23 , A. G. Sakellariou 23 , A. Todo-Bom 21 , E. Toskala 24,25 , J. E. Zejda 6 , T. Zuberbier 26 & M. L. Kowalski 27 1 Department of Rheumatology, Medical University of Lodz, Lodz, Poland; 2 Department of Respiratory Epidemiology and Public Health, Imperial College, London, UK; 3 Institute for Social Medicine, Epidemiology and Health Economics, Charite Universitatsmedizin Berlin, Berlin, Germany; 4 Upper Airways Research Laboratory, Department of Otorhinolaryngology and Logopaedic-Audiologic Science, Ghent University, Ghent, Belgium; 5 Institute for Occupational Health of R. Macedonia, University ‘‘Sts Cyril and Methodius’’ Skopje, Skopje, Macedonia; 6 Department of Epidemiology, Faculty of Medicine, Medical University of Silesia, Katowice, Poland; 7 Department of Occupational and Environmental Medicine, Odense University Hospital; 8 Department of Dermatology and Allergy Centre, Odense University Hospital, Odense, Denmark; 9 Department of Respiratory Medicine, Montpellier University, Montpellier, France; 10 Oslo University Hospital, Rikshospitalet,Oslo, Norway; 11 Department of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden; 12 Unit of Heart and Lung Diseases, Karolinska Institutet, Stockholm, Sweden; 13 Department of Otorhinolaryngology, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands; 14 Department of Public Health and Clinical Medicine, Umea University, Umea, Sweden; 15 Department of Respiratory Medicine, Institute of Biomedicine and Molecular Immunology, Palermo, Italy; 16 Department of Respiratory Cell and Molecular Biology, University of Southampton, Southampton, UK; 17 Department of Medical Sciences, Respiratory, Allergy and Sleep Research, Uppsala University, Uppsla, Sweden; 18 Department of Internal Medicine, Jagiellonian University Krakow, Krakow, Poland; 19 Environmental Health Research Institute, Heinrich Heine University, Dusseldorf, Germany; 20 Department of Dermatology and Allergy, Technical University Munich, Munich, Germany; 21 Department of Immunology and Allergology, University Hospital Coimbra, Coimbra, Portugal; 22 Krefting Research Centre, University of Gothenburg, Gothenburg, Sweden; 23 Allergy Department, 2nd Paediatric Clinic, University of Athens, Athens, Greece; 24 Department of Otorhinolaryngology and Finnish Institute of Occupational Health, Helsinki University Hospital, Helsinki, Finland; 25 Center for Applied Genomics, The Children’s Hospital of Philadelphia, Philadelphia, PA, USA; 26 Department of Dermatology and Allergy, Charite´– Universitahtsmedizin Berlin, Berlin, Germany; 27 Department of Immunology, Rheumatology and Allergy, Medical University of Lo ´ dz ´, Lo ´ dz ´, Poland To cite this article: Makowska JS, Burney P, Jarvis D, Keil T, Tomassen P, Bislimovska J, Brozek G, Bachert C, Baelum J, Bindslev-Jensen C, Bousquet J, Bousquet PJ, Kai-H akon C, Dahlen SE, Dahlen B, Fokkens WJ, Forsberg B, Gjomarkaj M, Howarth P, Janson C, Kasper L, Kraemer U, Louiro C, Lundback B, Minov J, Nizankowska-Mogilnicka E, Papadopoulos N, Sakellariou AG, Todo-Bom A, Toskala E, Zejda JE, Zuberbier T, Kowalski ML. Respiratory hypersensitivity reactions to NSAIDs in Europe: the global allergy and asthma network (GA 2 LEN) survey. Allergy 2016; DOI: 10.1111/all.12941. Keywords drug allergy; epidemiology; GA2LEN; NSAIDs hypersensitivity. Correspondence Dr. Joanna Makowska, Department of Rheumatology, Medical University of Lodz, Poland. Tel.: +48426757309 Fax: +48426782292 E-mail: joanna.makowska@umed.lodz.pl Accepted for publication 24 May 2016 Abstract Background: Nonsteroidal anti-inflammatory drugs (NSAIDs) are among the most prevalent drugs inducing hypersensitivity reactions. The aim of this analysis was to estimate the prevalence of NSAID-induced respiratory symptoms in popu- lation across Europe and to assess its association with upper and lower respira- tory tract disorders. Methods: The GA 2 LEN survey was conducted in 22 centers in 15 European coun- tries. Each of 19 centers selected random samples of 5000 adults aged 1574 from their general population, and in three centers (Athens, Munich, Oslo), a younger population was sampled. Questionnaires including questions about age, gender, presence of symptoms of asthma, allergic rhinitis, chronic rhinosinusitis, smoking Abbreviations CRS, chronic rhinosinusitis; EPOS, European position paper on Rhinosinusitis and Nasal Polyps; NERD, NSAID-exacerbated respiratory disease; NIRHR, NSAID-induced respiratory hypersensitivity reaction; NSAIDs, nonsteroidal anti-inflammatory drugs. © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd Allergy