Overall summary of the properties of e-DASTHMA. The shaded part corresponds to the range of values higher 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). Intra-rater reliability was not assessed, because when users fill in the MASK-air daily monitoring questionnaire several times per day, only the VAS values are registered on a per-questionnaire basis (medication is registered on a daily basis). Considering only the potential changes in VAS asthma, an intra-rater reliability of 0.93 (95% CI 0.93–0.94; calculated similarly to Sousa-Pinto and colleagues14) would be obtained. External validation data obtained from the INSPIRERS cohort (n days 425). 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. CARAT=Control of Allergic Rhinitis and Asthma Test. e-DASTHMA=electronic daily asthma control score. MASK-air=Mobile Airways Sentinel Network for airway diseases. VAS=visual analogue scale. WPAI:AS=Work Productivity and Activity Impairment: Allergy Specific.