Fig. 4From: PD-L1-expressing neutrophils as a novel indicator to assess disease activity and severity of systemic lupus erythematosusCorrelation of frequency of programmed death ligand 1 (PD-L1)-expressing neutrophils with disease activity. a The frequency of PD-L1-expressing neutrophils in systemic lupus erythematosus (SLE) patients was significantly increased in patients with active SLE compared to those with inactive SLE (P = 0.0162). b The frequency of PD-L1-expressing neutrophils in SLE patients correlated significantly with systemic lupus erythematosus disease activity index (SLEDAI) (r 2 = 0.09, P = 0.0133)Back to article page