CD4 and metabolic dysfunction-associated steatotic liver disease: In addition, we compared the number and percentage of peripheral blood lymphocyte subsets and CD4+T cell subsets in the two PsA groups and found that the number (P<0.001) and percentage (P=0.001) of peripheral blood Th1 cells, Th17 cells (P=0.037), Th1/Th2 ratio (P=0.021), NK cell numbers (P=0.007) and percentages (P=0.041) were significantly increased in the PsA-NAFLD group (Tables 2A, B, Figures 1A, B).