Figure 4. Correlation of IL-13 and IL-5 levels with IL-33 concentration. A: Interleukin (IL)-5 was positively correlated with IL-33 (R=0.9224, p<0.0001, Pearson correlation coefficients). B: IL-13 was positively correlated with IL-33 (R=0.7263, p<0.0001, Pearson correlation coefficients, n=38).