The clinical characteristics of colorectal cancer in Guangdong province / 中华消化杂志

ABSTRACT

Objective To investigate the clinical characteristics of colorectal cancer and its trend in Guangdong province.Methods The data from 6501 patients with pathologically confirmed colorectal cancer of 5 hospitals from 1990 to 2004 was analyzed.Results The mean age of 6501 patients with colo- rectal cancer was 59 years old,with the predominant age ranged from 61 to 70 years old.The proportion of young patients decreased from 7.1% to 3.5%.and the ratio between male and female was 1.471, which was gradually increased with increasing of age.The prevelence reached a high peak(60 years old) and dropped after that as a single peak curve.The ratio between rectal cancer and colon cancer was 1.1 1,and the descending colon cancer accounted for 27.6%.With ageing,the rectal cancers decreased while the right hemi colon cancer increased gradually.Tubular adenocarinoma was predominant with his- tological typing,which accounted for 76.0%.The progressing stage(Dukes B,C,and D)was found in 93.9% of all cases.Conclusions The onset age of patients with colorectal cancer become close to west- ern country.The proportion of young patients are decreasing.The ratio between male and female dis- plays a single peak curve from rising to dropping.A tendency of decreasing percentage in rectal cancer and the gradual increasing in right hemi colon cancer emphasize the importance of colonoscopy in colorec- tal caner screening.