Conflicting colorectal cancer screening (CRC) guidelines have sometimes led to confusion over optimal starting ages and strategies. Join Dr. Pedro Nascimento de Lima as he walks through a comprehensive modeling study that tested 26 different strategies over 4,000 scenarios to test how and when it is most effective to screen. Dr. Nascimento de Lima is an Engineer at RAND, a Professor at the RAND School of Public Policy, and an investigator with the colorectal modeling group of the Cancer Intervention and Surveillance Modeling Network.