Diagnostic role of fractional exhaled nitric oxide in pediatric eosinophilic esophagitis, relationship with gastric and duodenal eosinophils

Figure 1 Flow diagram of patient selection. IBD: Inflammatory bowel disease; EoE: Eosinophilic esophagitis.

Figure 2 Wilcoxon rank-sum test to assess fractional exhaled nitric oxide levels in eosinophilic esophagitis group compared to control. FeNO: Fractional exhaled nitric oxide; EoE: Eosinophilic esophagitis.

Figure 3 Receiver operating characteristics analysis to predict fractional exhaled nitric oxide cut off. ROC: Receiver operating characteristics; FeNO: Fractional exhaled nitric oxide; EoE: Eosinophilic esophagitis.

Figure 4 Spearman correlation analysis between fractional exhaled nitric oxide and esophageal eosinophils. FeNO: Fractional exhaled nitric oxide; eos: Eosinophils.