highly significantP = 0.001
Serum concentrations of vitamin D in patients showed a highly significant reduction than controls ( P = 0.001), while serum concentrations of IL-22 (ng/mL) in patients was significantly higher in psoriatic patients (104.5 ± 40.9) versus controls (27.7 ± 6.9), ( P = 0.001) [ Figure 1 ].