an increasing trendp = 0.063
In our cohort, MHC I and MHC II expression showed an increasing trend in cSCC tissues with high COPB2 expression (31.8% and 45.5%, respectively) than in those with low COPB2 expression (13.7% and 23.3%, respectively) ( p = 0.063 and P = 0.059, respectively) ( Table 2 ).