Figure 1 Serum concentrations of IL-18, IL-33, IFN-r, IL-4, IL-5, IL-6, IL-8, and IL-13 in subjects were determined by Luminex assay. HC – healthy control; MPP – Mycoplasma pneumoniae pneumonia; NMPP – non-Mycoplasma pneumoniae pneumonia. Differences among distributed variables were analyzed using the t test or Mann-Whitney U test, as appropriate. Data are presented as the mean±SD (n=21 for HC, n=33 for MPP, patients, n=38 for NMPP patients). P<0.05 was considered as indicating a statistically significant difference.