a decreasing trendP > 0.05
Although PNI levels showed a decreasing trend in the high-titer group, the difference was not statistically significant (P > 0.05). 3.2 Comparison of PNI, CD4 + /CD8 + ratio, and 25(OH)D levels in SLE patients stratified by anti-dsDNA titer As shown in Figure 2 , PNI, the CD4 + /CD8 + ratio, and 25(OH)D differed significantly among the three groups.