Fig. 3

Associations of SD-V-LY with other SLE disease indicators. Associations of the standard deviation of lymphocyte volume (SD-V-LY) with the erythrocyte sedimentation rate (ESR) (a), complement protein 4 (C4) (b), complement protein 3 (C3) (c), immunoglobulin G (IgG) (d), immunoglobulin A (IgA) (e), and immunoglobulin M (IgM) (f) in patients with systemic lupus erythematosus (SLE). Spearman’s rank correlation coefficients were used to assess the associations between SD-V-LY values and these disease indicators in 138 patients with SLE. Statistical significance was set at p < 0.05.