Fig. 3.

Correlation between SARS-CoV-2 spike IgG titers and clinical and demographic data.

Fig. 3. Correlation between SARS-CoV-2 S1/S2 IgG titer and clinical parameters, treatment dose and vaccination time. No correlation was found between SARS-CoV-2 S1/S2 IgG titer and lymphocytes count (r = 0.32, p = 0.12), (B) EDSS score (r = 0.02, p = 0.92), (C) age (r=−0.23, p = 0.25), (D) cladribine tablets dose (r=−0.22, p = 0.38), (E) disease duration (r=−0.05, p = 0.81), and (F) time between cladribine tablets dose and vaccination (r=−0.20, p = 0.37).

All correlations were calculated by Pearson correlation test, differences were considered significant at P <0.05.