highly significantP < 0.001
We next analyzed CSF CXCL13 levels in the RRMS patients given that most of the included studies recruited this subtype of patient, and the meta-analysis showed a highly significant association between elevated CXCL13 levels and RRMS (SMD 0.760; 95%CI, 0.603–1.917; P < 0.001), and no significant association between-study heterogeneity was observed (Q 12 = 12.025; P = 0.444; I 2 = 0.212) in this subgroup.