A national study by UC Davis researchers found that blacks, Asians and Hispanics are less likely to undergo colorectal cancer screening than whites. Among blacks and Hispanics, the disparity in screening appears to be due to socioeconomic, health-care access and language barriers, which could be overcome with prevention outreach efforts. However, these same barriers do not fully explain screening disparities of Asians. Lead author Anthony Jerant recommended more thorough exploration of the cultural factors that could drive lack of participation in screening for this population. The results were published in the Archives of Internal Medicine.