IL10 and breast cancer: However, our data contradict the study of Slattery et al. [31], who have recently showed the IL10 -819 TT genotype as a potential factor for lower cancer risk with OR of 0.79 and Gerger et al. [8], who revealed A-allele of the IL10 -592C > A polymorphism to have a prognostic value of the reduced DFS with 1.45 risk ratio; yet, controversially, this allele was earlier proved to be linked with a lower BC risk [28].