Figure 1

Study Diagram of Intervention to Promote Colorectal Cancer Screening. Flow diagram and results of randomized trial of intervention vs. usual care for colon cancer screening. 769 patients were enrolled and 382 were randomized to the control group, which received FOBT alone, and 387 patients were randomized to the intervention group, which was a mailed reminder 14 days after receiving their FOBT. The FOBT card return rate after 6 months was 64.6% in the intervention group compared to 48.4% in the usual care group (p < 0.001).