Stomach and Intestine(Tokyo) Volume 45, Issue 5 (April 2010)

Epidemiology of Colorectal Cancer Hideki Ishikawa 1 1Department of Molecular-Targeting Cancer Prevention, Kyoto Prefectural University of Medicine, Osaka, Japan Keyword: 大腸癌 , 大腸腺腫 , 罹患率 , 死亡率 , 内視鏡的摘除 pp.602-607
Published Date 2010/4/30
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 Based on descriptive epidemiology, the author indicates the following : Fluctuations in colorectal cancer incidence in Japan are mainly attributable to those of colon cancer. A linear increase of colon cancer ceased being first in incidence rate in early 1990 followed by a decline in mortality rate. The incidence of early colorectal cancer is unchanged. The incidence in men in their 50's and 60's is declining and the prefectures with high colorectal cancer mortality rates tend to have fewer colonoscopy specialists.

 These findings are thought to be consistent with the hypothesis that colonoscopic resection of precancerous lesions, i.e. adenomas, is effective. Because this is merely circumstantial evidence, however, these findings need further verification applying analytical-and interventional epidemiology.

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45巻5号 (2010年4月)
電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院