MLH1 and prostate cancer: After selecting the “By Gene” tab, the number of positive mutations and the number of tested per gene are returned for all genes, including MLH1. The numbers of individuals tested and positive are returned for all genes, including MLH1, which in this case was 26/845 (3.08%) in pancreatic cancer family histories versus 22/1477 (1.76%) with a family history of prostate cancer.