TITLE

Association Between Colonic Screening, Subject Characteristics, and Stage of Colorectal Cancer

AUTHOR(S)
Fazio, Laura; Cotterchio, Michelle; Manno, Michael; McLaughlin, John; Gallinger, Steven
PUB. DATE
November 2005
SOURCE
American Journal of Gastroenterology;Nov2005, Vol. 100 Issue 11, p2531
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
OBJECTIVES: Colorectal cancer remains a significant cause of mortality and morbidity in North America. Colorectal cancer survival is highly dependent on stage at diagnosis, therefore it is important to identify factors related to stage. This study evaluated the association between subject factors ( e.g., colonic screening, family history) and stage of colorectal cancer at diagnosis. METHODS: Population-based colorectal cancer cases recruited by the Ontario Familial Colon Cancer Registry between 1997 and 1999 were staged according to the tumor–nodal–metastasis (TNM) staging system and classified as early (TNM I/II) or late (TNM III/IV) stage. Epidemiologic information and stage was available for 768 cases. Multivariate logistic regression was used to obtain odds ratios (OR) estimates. RESULTS: Having had screening endoscopy reduced the risk of late stage diagnosis (OR = 0.46, 95% CI 0.22–0.98). Being older (>45 yr) was associated with a reduced risk of late stage cancer (OR = 0.36, 95% CI 0.18–0.74), as was having a first degree relative with colorectal cancer (OR =0.66, 95% CI 0.46–0.95). Rural residence (OR = 1.48, 95% CI 1.01–2.17) and non-white ethnicity (OR = 3.34, 95% CI 1.20–9.36) were associated with an increased risk of late stage cancer. CONCLUSIONS: Several factors are independently associated with late stage colorectal cancer. Colorectal cancer screening awareness and education programs need to consider targeting persons most likely to present with late stage colorectal cancer.
ACCESSION #
18613655

 

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