However, among subsets of NPSLE, Q albumin was significantly elevated in ACS compared with non-ACS diffuse NPSLE (P = 0.0017) or with focal NPSLE (P = 0.0089), and also with non-SLE control (P = 0.0024) (Figure 4, upper panels). Here, ALB is linked to systemic lupus erythematosus.