In the past 9 years, the incidence of colorectal cancer in Zhejiang province has increased with increase of median age, female ratio, proportion of patients over 70 years, and the incidence of right hemi-colon cancer.

• 近9年来,浙江省大肠癌发病率不断升高,发病年龄后移,70岁以上高龄患者和女性患者增多,右半结肠癌的比重增高,其流行病学出现了新的特征。