The correlation between a family history of colorectal cancer and survival of patients with colorectal cancer
The purpose was to analyze survival of patients with colorectal cancer and a positive family history for colorectal cancer in first degree relatives compared with those with no such family history and to determine whether differences in survival could be explained by known clinico-pathological factors. During 2000–2003, 318 consecutive patients with colorectal cancer answered a written questionnaire about their family history for colorectal cancer. During a 6-year follow-up, recurrences and survival were registered. Thirty-one (10%) patients had a first-degree relative with colorectal cancer, moreover two patients fulfilled the criteria of hereditary non-polyposis colorectal cancer and were excluded. Patients with a first-degree relative with colorectal cancer had better survival and lower risk for recurrences compared to those with no relatives with colorectal cancer. In a multivariate analysis including age, gender, stage of disease, tumor differentiation, vascular invasion and family history, patients with first-degree relatives with colorectal cancer had lower risks for death (RR 0.37; 95% CI 0.17–0.78) and death from cancer (RR 0.25; 95% CI 0.08–0.80), compared to those with a no relative with colorectal cancer. The differences were seen in patients with colon cancer but not rectal cancer. Family history for colorectal cancer in a first-degree relative is an individual prognostic factor in patients with colon cancer and could not be explained by known clinico-pathological factors. The value of family history taking in patients with colon cancer is therefore not only to identify families with hereditary colorectal cancer, but also to add information to the prognosis of the patients.
KeywordsCancer Family history Heredity Colorectal Survival
- 1.Ries LAG, Melbert D, Krapcho M, Mariotto A, Miller BA, Feuer EJ, Clegg L, Horner MJ, Howlader N, Eisner MP, Reichman M, Edwards BK, SEER Cancer Statistics Review, 1975–2004. National Cancer Institute. Bethesda, MD. Available at: http://seer.cancer.gov/1975_2004/
- 15.Clinical and pathological analyses of patients with a family history of colorectal cancer. Registry Committee, Japanese Research Society for Cancer of the Colon and Rectum. Jpn J Clin Oncol 1993 Dec; 23(6): 342–349Google Scholar
- 22.Deceased persons in Sweden 1947–2006 (2007) version 4 (CD-ROM)Google Scholar
- 28.Perkovic K, Smedh K, Påhlman L (2008) Dokumentation of family history in colorectal cancer in surgical hospital records. Kirurgveckan abstract number P69 Available at URL: http://www.abstrakthantering.se/files/KV2008_abstrakt_dr.pdf