Fig. 1

The distribution of SD-V-LY, RBC count, and LY% in SLE patients with different disease activities. Standard deviation of lymphocyte volume (SD-V-LY) (a), red blood cell (RBC) count (b), and lymphocyte percentage (LY%) (c) among the subgroups were differentially distributed. The 138 patients with systemic lupus erythematosus (SLE) at admission were classified into four subgroups according to the Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2 K): low activity (SLEDAI-2 ≤ 4, n = 17), mild activity (5 ≤ SLEDAI-2 K ≤ 9, n = 37), moderate activity (10 ≤ SLEDAI-2 K ≤ 14, n = 44), and high activity (SLEDAI-2 K ≥ 15, n = 40). Bonferroni correction was applied to adjust for multiple comparisons. *p < 0.05; **p < 0.01.