TY - JOUR TI - Development and validation of combined symptom-medication scores for allergic rhinitis* AU - Sousa-Pinto, B. AU - Azevedo, L.F. AU - Jutel, M. AU - Agache, I. AU - Canonica, G.W. AU - Czarlewski, W. AU - Papadopoulos, N.G. AU - Bergmann, K.-C. AU - Devillier, P. AU - Laune, D. AU - Klimek, L. AU - Anto, A. AU - Anto, J.M. AU - Eklund, P. AU - Almeida, R. AU - Bedbrook, A. AU - Bosnic-Anticevich, S. AU - Brough, H.A. AU - Brussino, L. AU - Cardona, V. AU - Casale, T. AU - Cecchi, L. AU - Charpin, D. AU - Chivato, T. AU - Costa, E.M. AU - Cruz, A.A. AU - Dramburg, S. AU - Durham, S.R. AU - De Feo, G. AU - Gerth van Wijk, R. AU - Fokkens, W.J. AU - Gemicioglu, B. AU - Haahtela, T. AU - Illario, M. AU - Ivancevich, J.C. AU - Kvedariene, V. AU - Kuna, P. AU - Larenas-Linnemann, D.E. AU - Makris, M. AU - Mathieu-Dupas, E. AU - Melén, E. AU - Morais-Almeida, M. AU - Mösges, R. AU - Mullol, J. AU - Nadeau, K.C. AU - Pham-Thi, N. AU - O’Hehir, R. AU - Regateiro, F.S. AU - Reitsma, S. AU - Samolinski, B. AU - Sheikh, A. AU - Stellato, C. AU - Todo-Bom, A. AU - Tomazic, P.V. AU - Toppila-Salmi, S. AU - Valero, A. AU - Valiulis, A. AU - Ventura, M.T. AU - Wallace, D. AU - Waserman, S. AU - Yorgancioglu, A. AU - De Vries, G. AU - van Eerd, M. AU - Zieglmayer, P. AU - Zuberbier, T. AU - Pfaar, O. AU - Almeida Fonseca, J. AU - Bousquet, J. JO - Allergy: European Journal of Allergy and Clinical Immunology PY - 2022 VL - null TODO - null SP - null PB - John Wiley and Sons Inc SN - null TODO - 10.1111/all.15199 TODO - null TODO - Background: Validated combined symptom-medication scores (CSMSs) are needed to investigate the effects of allergic rhinitis treatments. This study aimed to use real-life data from the MASK-air® app to generate and validate hypothesis- and data-driven CSMSs. Methods: We used MASK-air® data to assess the concurrent validity, test-retest reliability and responsiveness of one hypothesis-driven CSMS (modified CSMS: mCSMS), one mixed hypothesis- and data-driven score (mixed score), and several data-driven CSMSs. The latter were generated with MASK-air® data following cluster analysis and regression models or factor analysis. These CSMSs were compared with scales measuring (i) the impact of rhinitis on work productivity (visual analogue scale [VAS] of work of MASK-air®, and Work Productivity and Activity Impairment: Allergy Specific [WPAI-AS]), (ii) quality-of-life (EQ-5D VAS) and (iii) control of allergic diseases (Control of Allergic Rhinitis and Asthma Test [CARAT]). Results: We assessed 317,176 days of MASK-air® use from 17,780 users aged 16-90 years, in 25 countries. The mCSMS and the factor analyses-based CSMSs displayed poorer validity and responsiveness compared to the remaining CSMSs. The latter displayed moderate-to-strong correlations with the tested comparators, high test-retest reliability and moderate-to-large responsiveness. Among data-driven CSMSs, a better performance was observed for cluster analyses-based CSMSs. High accuracy (capacity of discriminating different levels of rhinitis control) was observed for the latter (AUC-ROC = 0.904) and for the mixed CSMS (AUC-ROC = 0.820). Conclusion: The mixed CSMS and the cluster-based CSMSs presented medium-high validity, reliability and accuracy, rendering them as candidates for primary endpoints in future rhinitis trials. © 2022 The Authors. Allergy published by European Academy of Allergy and Clinical Immunology and John Wiley & Sons Ltd. ER -