Fig. 4

The levels of soluble IgA and IgG in feces from UC patients. a, b The levels of IgA (a) and IgG (b) were evaluated in feces of HC (n = 41), E1 UC (n = 16), E2 UC (n = 23), and E3 UC (n = 34) patients according to disease behaviors. c, d Correlations between CRP and fecal IgA (c) or IgG (d) levels in UC patients (n = 75), respectively. e, f Correlations between ESR and fecal IgA (e) or IgG (f) levels in UC (n = 75). g–j Correlations between Mayo score (g, h) or UCEIS (i, j) and fecal IgA or IgG levels in UC patients (n = 73). Spearman’s correlation analysis was performed. P value is shown in each panel. *P < 0.05, ****P < 0.0001