Do the benefits outweigh the side effects of colorectal cancer surveillance? A systematic review

Figure 1 Overall survival of colon cancer dukes A-D. Eighty percent of the recurrences occur within the 3 first years after initial treatment, which is used as an argument to perform intensive surveillance the first 3 years. After 5 years, the survival curve is steady with few deaths caused by colon cancer. Courtesy of the Norwegian Cancer Registry (http://www.kreftregisteret.no/en/).