Fig. 5

Differentially expressed CXCL9 in pSS subgroups with different EGM. A Box plot showing the expression of CXCL9 in pSS-EGM subgroups and pSS-non-EGM in MSGs. B Box plot showing the expression of CXCL9 in pSS-EGM subgroups and pSS-non-EGM in plasma. Significance determined by Kruskall-Wallis’s test. The “*” symbol denotes the significance between pSS-non-EGM and pSS-EGM subgroups. The “#” symbol denotes the significance between blood involvement and other subgroups within the pSS-EGM group. ^* p < 0.05, ^**p < 0.01, ^*** p < 0.001, ^**** p < 0.001; ^# p < 0.05, ^## p < 0.01, ^### p < 0.001, ^#### p < 0.001