POSTN and eosinophilic esophagitis: Periostin (not measured in the AD studies presented here) ranged from 56.20 to 56.95 ng/mL in EoE patients to 69.70 to 71.00 ng/mL and 99.60 to 104.00 ng/mL in asthma and CRSwNP patients, respectively (Table 1).