Figure 3.

Cumulative incidence of colorectal cancer (CRC) mortality in fecal occult blood test (FOBT)-positive patients according to time to diagnostic colonoscopy. Shown are the cumulative incidence CRC mortality rates according to the time to diagnosis for each of the four exposure groups. The four exposure groups denote time delay from the positive FOBT result to diagnostic colonoscopy in months. The table below the survival curves figure shows the numbers at risk for each exposure group according to years of follow-up.