[The Danish Colorectal Cancer Database].

The Danish Colorectal Cancer Database was established in 1994 with the purpose of monitoring whether diagnostic and surgical principles specified in the evidence-based national guidelines of good clinical practice were followed. Twelve clinical indicators have been listed by the Danish Colorectal Cancer Group, and the performance of each hospital surgical department with respect to these indicators is reported annually. In addition, the register contains a large collection of data that provide valuable information on the influence of comorbidity and lifestyle factors on disease outcome and survival.