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Pathological features and survival outcomes of young patients with operable colon cancer: are they homogeneous?
Ist Teil von
PloS one, 2014-07, Vol.9 (7), p.e102004-e102004
Ort / Verlag
United States: Public Library of Science
Erscheinungsjahr
2014
Link zum Volltext
Quelle
EZB Electronic Journals Library
Beschreibungen/Notizen
To compare the pathological features and survival outcomes at different age subgroups of young patients with colon cancer.
Using Surveillance, Epidemiology, and End Results (SEER) population-based data, we identified 2,861 young patients with colon cancer diagnosed between 1988 and 2005 treated with surgery. Patients were divided into four groups: group 1 (below 25 years), group 2 (26-30 years), group 3 (31-35 years) and group 4 (36-40 years). Five-year cancer specific survival data were obtained. Kaplan-Meier methods were adopted and multivariable Cox regression models were built for the analysis of long-term survival outcomes and risk factors.
There were significant different among four groups in pathological grading, histological type, AJCC stage, current standard (≥12 lymph nodes retrieval), mean number of lymph nodes examined and positive lymph nodes (p<0.001). The 5-year cause specific survival was 71.0% in group 1, 75.1% in group 2, 80.6% in group 3 and 82.5% in group 4, which had significant difference in both univariate (P = 0.002) and multivariate analysis (P = 0.041).
Young patients with colon cancer at age 18-40 years are essentially a heterogeneous group. Patients at age 31-35, 36-40 subgroups have more favorable clinicopathologic characteristics and better cancer specific survival than below 30 years.