Experiences High resolution studies Denmark + Nordic countries

1. ExperiencesHighresolution studies Denmark + Nordic countries Studies using hospital information: • Breast 1989 and 1994 in E. Denmark and S. Sweden • Rectum1997 Nordic countries+Scotland • Prostate 1997, Sweden, Iceland, Denmark, submitted • Colon 1997, Nordic countries+Scotland, to underway Experience from collecting hospital information: • Too expensive and takes too long time to collect • Too few cases included to make firm conclusions • Too few extra and comparable variables

2. New strategy • Cancer registers in Sweden and Denmark include TNM from 2003 and 2004 • National Patient Registers contain information on operations and othertreatments, but with differingcodingbetweencountries • Clinical cancer registers for many sites exist in Denmark and Sweden, arestarting in Norway, initiatives in Iceland, Finland interested • WeworkonfacilitatingNordic collaborationbetweenclinical registers to getcomparable information and to supplement and validate cancer register information, ifeachclinical register wish to participate