IL13 and allergic disease: There was also no difference in IL-13 between UC with (n = 9) and without (n = 14) allergic diseases, including 5-ASA intolerance (median (IQR) 0.36 (0–1.25) pg/mL vs. 0.363 (0–2.18) pg/mL, p = 0.949) (Figure 6H).