CD68 and classic Hodgkin lymphoma: Considering the EBV- group, more CD68+CMAF+ than CD68+pSTAT1+ macrophages (ratio >1.5) were observed in 100% (40/40) of Th2-response group, in 41% of EBV- cHL cases and in only 3.6% (1/28) of Th1-response group cases (P< 0.0005, X2).