title: Data on the characteristics and the survival of korean patients with colorectal cancer from the Korea central cancer registry.
abstract: OBJECTIVE
  The incidence rates of colorectal cancer (CRC) in Korea have been increasing during the past decade. Therefore, it is important to understand the characteristics, including survival, of Korean CRC patients. The aim of this study was to use the nationwide cancer registry to evaluate the characteristics of Korean CRC, focusing on the survival, according to tumor location, sex, and specific age groups.
  
  
  METHODS
  Using the Korea Central Cancer Registry (KCCR), we analyzed a total of 226,352 CRC cases diagnosed from 1993 to 2010. The five-year relative survivals were compared for the proximal colon, the distal colon, and the rectum. Survival rates were compared between men and women and between patients of young age (less than 40 years old) and patients of advanced age (70 years old or older).
  
  
  RESULTS
  The 5-year survival rates were improved in all subsites between 1993 and 2010. Distal colon cancer showed favorable survival compared to proximal colon or rectal cancer. Females demonstrated worse survival for local or regional cancers, and this difference was significant in for patients in their seventies. Young patients (<40 years old) showed better survival rates for overall and proximal colon cancer comparable to those for older patients (≥40 years old), but advanced age patients (≥70 years old) had worse survivals for all tumor subsites compared to their younger counterparts (<70 years old). These trends were similar in distant CRC.
  
  
  CONCLUSIONS
  Korean CRC has certain distinct characteristics of survival according to tumor location, sex, and age. Despite the limitations of available data, this study contributes to a better understanding of survival differences in Korean CRC.
authors.affiliation: Korea Colorectal Cancer Study Group (KOCCS), Seoul, Korea.
authors.forename: Hyoung-Chul
authors.initials: HC
authors.lastname: Park
authors.forename: Aesun
authors.initials: A
authors.lastname: Shin
authors.forename: Byung-Woo
authors.initials: BW
authors.lastname: Kim
authors.forename: Kyu-Won
authors.initials: KW
authors.lastname: Jung
authors.forename: Young-Joo
authors.initials: YJ
authors.lastname: Won
authors.forename: Jae Hwan
authors.initials: JH
authors.lastname: Oh
authors.forename: Seung-Yong
authors.initials: SY
authors.lastname: Jeong
authors.forename: Chang Sik
authors.initials: CS
authors.lastname: Yu
authors.forename: Bong Hwa
authors.initials: BH
authors.lastname: Lee
keywords: Colorectal neoplasms; Korean, Survival
references.citation: Cancer Res Treat. 2012 Mar;44(1):11-24
references.pmid: 22500156
references.citation: Cancer. 2013 Feb 15;119(4):722-8
references.pmid: 22990939
references.citation: Cancer Res Treat. 2012 Dec;44(4):219-26
references.pmid: 23341785
references.citation: Am Surg. 1998 Sep;64(9):849-53
references.pmid: 9731812
references.citation: PLoS One. 2012;7(12):e52457
references.pmid: 23300677
references.citation: Dis Colon Rectum. 2012 Jun;55(6):703-10
references.pmid: 22595851
references.citation: Am J Surg. 2004 Mar;187(3):343-8
references.pmid: 15006562
references.citation: Ann Surg Oncol. 2008 Sep;15(9):2388-94
references.pmid: 18622647
references.citation: Ann Surg Oncol. 2005 Aug;12(8):637-45
references.pmid: 15965730
references.citation: Asian Pac J Cancer Prev. 2012;13(5):1857-62
references.pmid: 22901136
references.citation: Cancer. 2001 Nov 15;92(10):2547-54
references.pmid: 11745188
references.citation: Am J Gastroenterol. 2008 May;103(5):1249-56
references.pmid: 18190650
references.citation: Dis Colon Rectum. 2003 Dec;46(12):1646-52
references.pmid: 14668590
references.citation: Int J Cancer. 2009 May 15;124(10):2406-15
references.pmid: 19142968
references.citation: Clin Cancer Res. 2009 Oct 15;15(20):6391-7
references.pmid: 19789331
references.citation: Dis Colon Rectum. 2009 Dec;52(12):1982-91
references.pmid: 19959975
references.citation: Clin Colorectal Cancer. 2005 Nov;5(4):279-82
references.pmid: 16356306
references.citation: Dis Colon Rectum. 2002 Aug;45(8):1035-40
references.pmid: 12195187
references.citation: J Clin Gastroenterol. 2007 Feb;41(2):173-7
references.pmid: 17245216
references.citation: J Gastroenterol Hepatol. 2005 Jun;20(6):900-5
references.pmid: 15946138
references.citation: Colorectal Dis. 2011 Aug;13(8):884-9
references.pmid: 20594201
references.citation: Colorectal Dis. 2007 Jun;9(5):430-7
references.pmid: 17504340
references.citation: Int J Colorectal Dis. 2012 Jan;27(1):71-9
references.pmid: 21881876
references.citation: Cancer. 2006 Sep 1;107(5 Suppl):1153-61
references.pmid: 16862554
references.citation: Am Surg. 1998 Jun;64(6):563-7; discussion 567-8
references.pmid: 9619179
references.citation: Clin Cancer Res. 2003 Mar;9(3):1112-7
references.pmid: 12631615
references.citation: J Surg Oncol. 2005 Mar 15;89(4):211-7
references.pmid: 15726622
references.citation: Lancet. 2000 May 20;355(9217):1745-50
references.pmid: 10832824
references.citation: Cancer Res Treat. 2013 Mar;45(1):1-14
references.pmid: 23613665
references.citation: Int J Cancer. 2010 Feb 1;126(3):721-32
references.pmid: 19688825
references.citation: J Gastroenterol Hepatol. 2010 Mar;25(3):519-25
references.pmid: 20370730
references.citation: Ann Surg Oncol. 1999 Oct-Nov;6(7):651-7
references.pmid: 10560850
references.citation: Dis Colon Rectum. 2001 Mar;44(3):380-7
references.pmid: 11289284
references.citation: Br J Surg. 1998 Sep;85(9):1255-9
references.pmid: 9752871
references.citation: Gastroenterology. 2008 Feb;134(2):388-95
references.pmid: 18242207
references.citation: J Clin Oncol. 2011 Nov 20;29(33):4401-9
references.pmid: 21969498
references.citation: PLoS One. 2011;6(8):e23196
references.pmid: 21853085
references.citation: J Am Coll Surg. 2003 May;196(5):722-8
references.pmid: 12742204
references.citation: Dis Colon Rectum. 2010 Jan;53(1):57-64
references.pmid: 20010352
references.citation: Eur J Cancer. 2012 Jun;48(9):1293-8
references.pmid: 22119202
references.citation: Clin Gastroenterol Hepatol. 2010 Oct;8(10):870-6
references.pmid: 20670694