Figure 2: Anti-MCV titers are higher in patients with moderate-to-severe psoriasis than in mild psoriasis. The plots show the anti-MCV levels in moderate-to-severe (previously or currently treated with systemic or phototherapy) and mild (never received systemic or phototherapy) PsO patients. The horizontal lines indicate the mean levels of anti-MCVs. *The difference between the data on mild and the moderate-to-severe psoriasis PsO groups (  U/mL versus  U/mL), respectively, was significant ( ).