Samreth D, Arnavielhe S, Ingenrieth F, Bedbrook A, Onorato GL, Murray R, Almeida R, Mizani MA, Fonseca J, Costa E, Malva J, Morais-Almeida M, Pereira AM, Todo-Bom A, Menditto E, Stellato C, Ventura MT, Larenas-Linnemann D, Fuentes-Pérez JM, Huerta-Villalobos YR, Cruz AA, Stelmach R, da Silva J, Emuzyte R, Kvedariene V, Valiulis A, Annesi-Maesano I, Bosse I, Demoly P, Devillier P, Fontaine JF, Kuna P, Samolinski B, Klimek L, Mösges R, Pfaar O, Shamai S, Bewick M, Ryan D, Sheikh A, Anto JM, Cardona V, Mullol J, Valero A, Chavannes NH, Fokkens WJ, Reitsma S, Roller-Wirnsberger RE, Tomazic PV, Haahtela T, Toppila-Salmi S, Valovirta E, Makris M, Papadopoulos NG, Prokopakis EP, Psarros F, Gemicioğlu B, Yorgancioglu A, Bindslev-Jensen C, Eller E, Kull I, Wickman M, Bachert C, Hellings PW, Pugin B, Bosnic-Anticevich S, O'Hehir RE, Kolek V, Sova M, Wehner K, De Vries G, van Eerd M, Laune D, Wittmann J, Bousquet J, and Poncelet P
Background: Collecting data on the localization of users is a key issue for the MASK (Mobile Airways Sentinel networK: the Allergy Diary) App. Data anonymization is a method of sanitization for privacy. The European Commission's Article 29 Working Party stated that geolocation information is personal data.To assess geolocation using the MASK method and to compare two anonymization methods in the MASK database to find an optimal privacy method., Methods: Geolocation was studied for all people who used the Allergy Diary App from December 2015 to November 2017 and who reported medical outcomes. Two different anonymization methods have been evaluated: Noise addition (randomization) and k-anonymity (generalization)., Results: Ninety-three thousand one hundred and sixteen days of VAS were collected from 8535 users and 54,500 (58.5%) were geolocalized, corresponding to 5428 users. Noise addition was found to be less accurate than k-anonymity using MASK data to protect the users' life privacy., Discussion: k-anonymity is an acceptable method for the anonymization of MASK data and results can be used for other databases., Competing Interests: No ethical committee was required for the study.Not needed. JB reports personal fees and other from Chiesi, Cipla, Hikma, Menarini, Mundipharma, Mylan, Novartis, Sanofi-Aventis, Takeda, Teva, Uriach, other from Kyomed, outside the submitted work.RA reports grants from North Portugal Regional Operational Programme (NORTE 2020), under the PORTUGAL2020 Partnership Agreement and through the European Regional Development Fund (ERDF), during the conduct of the study.AC reports grants and personal fees from GlaxoSmithKline, personal fees from Boehringer Ingelheim, MEDA Pharma, CHIESI, AstraZeneca, om Merck, Sharp & Dohme, Novartis EUROFARMA outside the submitted work.H reports personal fees from Munidpharma, Novartis, OrionPharma, outside the submitted work. PK reports personal fees from Adamed, Boehringer Ingelheim, AstraZeneca, Chiesi, FAES, Berlin Chemie, Novartis, Polpharma, Allergopharma, outside the submitted work.V.K has received payment for consultancy from GSK and for lectures from StallergensGreer, Berlin-CHemie outsaide the submitted work.LL reports personal fees from MSD, Pfizer, GSK, Astrazeneca, MEDA, Boehringer Ingelheim, Novartis, Grunenthal, UCB, TEVA, Amstrong, Siegfried, DBV Technologies, grants from Sanofi, Pfizer, Astrazeneca, Novartis, UCB, outside the submitted work.RM reports personal fees from ALK, allergopharma, Allergy Therapeutics, Bayer, Friulchem, FAES, GSK, Hexal, Servier, Klosterfrau, MSD, Johnson&Johnson, Meda, Stada, UCB, Nuvo; grants and personal fees from Bencard, Stallergenes; grants from Leti, Optima, ASIT biotech, BitopAG, Hulka, Ursapharm; grants, personal fees and non-financial support from Lofarma; non-financial support from Atmos, Roxall, Bionorica, Otonomy, Ferrero; personal fees and non-financial support from Novartis; outside the submitted work.NGP reports personal fees from Abbvie Novartis, Faes Farma, BIOMAY, HAL, Nutricia Research, Menarini, Novartis, MEDA, MSD, Omega Pharma, Danone, grants from Menarini, outside the submitted work.0P reports grants and personal fees from ALK-Abelló, Allergopharma, Stallergenes Greer, HAL Allergy Holding B.V./HAL Allergie GmbH, Bencard Allergie GmbH/Allergy Therapeutics, Lofarma, Biotech Tools S.A., Laboratorios LETI/LETI Pharma, Anergis S.A., grants from Biomay, Nuvo, Circassia, Glaxo Smith Kline, personal fees from Novartis Pharma, MEDA Pharma, Mobile Chamber Experts (a GA2LEN Partner), Pohl-Boskamp, Indoor Biotechnologies, grants from, outside the submitted work.RS reports grants from São Paulo Research Foundation, MSD, grants and personal fees from Novartis, grants, personal fees and non-financial support from AstraZeneca, Chiesi, personal fees and non-financial support from Boheringer Ingelheim, outside the submitted work.TBAM reports grants and personal fees from Novartis, Boehringer Ingelheim, Mundipharma, GSK (GlaxoSmithKline), personal fees from Teva Pharma, AstraZeneca, grants from Leti, outside the submitted work. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.