Fig. 1

Comparisons of catecholamine and metabolites in three groups. Statistical significance was determined by the Kruskal-Wallis H test, followed by post-hoc multiple comparisons: *P < 0.05; *P < 0.01; ***P < 0.001 compared with the control group. #P < 0.05; ##P < 0.01; ###P < 0.001 compared with the SLE-inactive group.