The younger people are screened, the more likely cancer is to be detected, says Anton Bilchik, M.D., Ph.D., surgical oncologist and division chair of general surgery at Providence Saint John’s Health Center and chief of medicine and Director of the Gastrointestinal and Hepatobiliary Program at Saint John’s Cancer Institute in Santa Monica, Calif. “It’s apparent, based on this data, that the screening age is not low enough,” Dr. Bilchik says.