Score distribution
Floor
Descriptive statistics were summarized for the EoE-IQ score at baseline and week 24 and for the corresponding change in scores from baseline. Floor (worst outcome) or ceiling (best outcome) effects were defined as > 20% of patients with the worst score (5) or the best score (1) at baseline, respectively. Inter-item and corrected item-total correlations (which were computed without the corresponding item) were determined in order to evaluate potential redundancy and assess the strength of the relationships of the items. Correlations > 0.30 and < 0.80 are generally considered appropriate.