The number of correlation coefficients, intraclass correlation coefficients, effect size measures, or AUC-ROC whose values were more than those indicated by COSMIN guidelines as corresponding to good validity (correlation coefficient more than 0.5), reliability (intraclass correlation coefficient more than 0.7), responsiveness (correlation coefficient [or effect size measure] more than 0.5), or accuracy (AUC-ROC more than 0.7). For both panels, the cluster-based score obtained based on CARAT asthma, WPAI:AS activities, and WPAI:AS work was the score that presented the highest average ranking. External validation data obtained from the INSPIRERS cohort (n=425 days). Otherwise, data obtained from the MASK-air derivation cohort (n days 135 635). WPAI:AS work refers to the percent overall work impairment due to allergy, and WPAI:AS activities refers to the degree allergy affected regular activities. AUC-ROC=area under the receiver operating characteristic curve. CARAT=Control of Allergic Rhinitis and Asthma Test. MASK-air=Mobile Airways Sentinel Network for airway diseases. WPAI:AS=Work Productivity and Activity Impairment: Allergy Specific.