The impact of young age on the prognosis for colorectal cancer: a population-based study in Taiwan.

Abstract:

Background:The impact of age as a prognostic factor for patients with colorectal cancer (CRC) remains controversial, possibly due to heterogeneity between studies in terms of patient numbers, percentage of patients undergoing curative resection, percentage of patients receiving neoadjuvant therapy, or failure to adjust for potential confounding factors. This study used colorectal cancer survival data from the Taiwan Cancer Registry database in order to comprehensively analyze age as a prognostic factor. Methods:Survival data were analyzed for 62 060 CRC patients diagnosed with adenocarcinoma, mucinous adenocarcinoma, or signet-ring cell carcinoma of the colon and rectum between 1998 and 2005. The rates of all-cause mortality and CRC-related mortality were determined using Kaplan-Meier analysis, and the log-rank test was used to compare differences in survival between different age groups. The crude and adjusted hazard ratios for all-cause and CRC-related mortalities were calculated according to the estimates from the univariable and multivariable Cox proportional hazard models. Results:Patients in the ≤40 and the 41-50 age groups had a higher proportion of mucinous adenocarcinoma (P < 0.001) and signet-ring cell carcinoma (P < 0.001) compared to the older age groups. After adjusting for gender, histology, and tumor site, patients in the ≤40 age group had a poorer overall survival (OS) and cancer-specific survival compared to patients in the 41-50 and 51-60, and 61-70 age groups (P < 0.001), but a better OS and cancer-specific survival compared to patients in the 71-80 and >80 age groups (P < 0.001). Conclusions:Our study indicated that age is an important consideration while determining the clinical management of CRC patients.

journal_name

Jpn J Clin Oncol

authors

Chou CL,Tseng CJ,Shiue YL

doi

10.1093/jjco/hyx110

subject

Has Abstract

pub_date

2017-11-01 00:00:00

pages

1010-1018

issue

11

eissn

0368-2811

issn

1465-3621

pii

4080782

journal_volume

47

pub_type

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