IR@PKUHSC  > 北京大学临床肿瘤学院
Changing patterns of colorectal cancer in China over a period of 20 years
Li, Ming; Gu, Jin
关键词Colorectal carcinoma Time trends Age Sex Subsite Pathology
WOS标题词Science & Technology
类目[WOS]Gastroenterology & Hepatology
研究领域[WOS]Gastroenterology & Hepatology

AIM: To determine whether any changes have occurred on the patterns of colorectal cancer in China.

METHODS: Data from 21 Chinese articles published from 1980 to 1999, were used to analyze the time trend of colorectal cancer according to the patients′ age at diagnosis, sex, the site of the tumor, stage, and the pathology.

RESULTS: From 1980s to 1990s, the mean age of the colorectal cancer patients has increased. The percentage of the female patients rose. The distribution of colorectal carcinoma shows a predominance of rectal cancer. However, the proportion of proximal colon cancer (including transverse and ascending colon) increased significantly accompanied by a decline in the percentage of rectal cancer. Similarity in the percentage of distal colon cancer between two decades was revealed. In the 1990s, statistically more Stage B patients were found than those in 1980s. In addition, databases show a significant decrease in the Stage D cases. The proportion of adenocarcinoma increased, but the mucinous adenocarcinoma decreased during two decades.

CONCLUSION: These findings indicate that the pattern of colorectal cancer in China has been changing. Especially, a proximal shift due to the increasing proportion of ascending and transverse colon cancer has occurred in China. (C) 2005 The WJG Press and Elsevier Inc. All rights reserved.

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作者单位Peking Univ, Beijing Canc Hosp, Dept Surg, Sch Oncol,Beijing Inst Canc Res, Beijing 100036, Peoples R China
Recommended Citation
GB/T 7714
Li, Ming,Gu, Jin. Changing patterns of colorectal cancer in China over a period of 20 years[J]. WORLD JOURNAL OF GASTROENTEROLOGY,2005,11(30):4685-4688.
APA Li, Ming,&Gu, Jin.(2005).Changing patterns of colorectal cancer in China over a period of 20 years.WORLD JOURNAL OF GASTROENTEROLOGY,11(30),4685-4688.
MLA Li, Ming,et al."Changing patterns of colorectal cancer in China over a period of 20 years".WORLD JOURNAL OF GASTROENTEROLOGY 11.30(2005):4685-4688.
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