Abstract
Background: Five-year relative survival rates (5y-RSRs) calculated from the Korean National Cancer Registry (KNCR) data have been reported recently, but the stage distribution among the registered patients is still unknown. We aim to calculate stage-specific 5y-RSRs using a large cancer registry data from one hospital that has contributed 7.1% of the KNCR data between 1999 and 2008.
Method: Samsung Medical Center Cancer Registry System has been established since 1994. We identified all cancer patients diagnosed between Nov. 1, 1994 and Dec. 31, 2006 and followed them up through Dec. 31, 2008. We calculated 5y-RSRs using Ederer II expected survival rates. Stage-specific 5y-RSRs were calculated for those cancers that had stage information for more than 50% of the patients.
Results: A total of 82,038 cancer records were analyzed. Five-year-RSR had improved with time periods. Five-year-RSR for all cancer was 52.6 % in 1994–1999 and 60.3 % in 2000–2004. During 1999–2006, the highest 5y-RSR was obtained from thyroid, breast and prostate cancers and the lowest from pancreas, gallbladder, and lung cancers. Five-year-RSR for stage I, II, III, and IV cancers were 0.95, 0.80, 0.58, and 0.18, respectively. Site specific 5y-RSR of stomach, liver and lung cancer was 0.99, 0.65, and 0.79, respectively, in stage I, and 0.09, 0.07, and 0.04, respectively, in stage IV.
Conclusions: Stage-specific 5y-RSRs among Koreans were comparable to other developed countries, and fairly good for common cancers in Korea such as stomach, liver, and lung cancers.
Citation Information: Cancer Prev Res 2011;4(10 Suppl):B25.
RSS Feeds
