APOA1 and systemic lupus erythematosus: HDL-C and ApoA1 were also significantly decreased in the SLE group compared to the control (1.6 ± 0.05 vs 0.8 ± 0.04, p value 0.02 for HDL-C and 1.3 ± 0.04 vs 0.9 ± 0.03, p value < 0.01 for Apo A).