Launoy G, Pottier D, Gignoux M
Registre Spécialisé des Tumeurs Digestives du Calvados, Faculté de Médecine, CHU Côte-de-Nacre, Caen.
Gastroenterol Clin Biol. 1989 Mar;13(3):255-9.
During a seven year period ending in 1984, the Calvados Registry of Digestive Tract Tumors (France) recorded 1446 cases of colorectal cancer. The sex-ratio, age, and histologic type were studied with respect to location. From cecum to rectum, the sex-ratio varied from 1 to 1.9. Average age at diagnosis varied between 67.5 and 72.6 years for women but was invariable for males. The proportion of mucinous carcinoma varied between 13 p. 100 in the cecum and 5 p. 100 in the sigmoid and rectum. The study of incidence with respect to age and location showed that there were less elderly women with left colonic and rectal carcinoma. Epidemiologically, there seems to be two different types of colonic carcinoma: proximal and distal colonic carcinoma (including the rectum), the separation being determined by the splenic flexure.
在截至1984年的七年时间里，法国卡尔瓦多斯消化道肿瘤登记处记录了1446例结直肠癌病例。研究了性别比、年龄和组织学类型与肿瘤位置的关系。从盲肠到直肠，性别比从1比1.9不等。女性诊断时的平均年龄在67.5岁至72.6岁之间，而男性则无变化。黏液癌的比例在盲肠为13%，在乙状结肠和直肠为5%。关于年龄和位置的发病率研究表明，左半结肠癌和直肠癌的老年女性患者较少。从流行病学角度看，似乎存在两种不同类型的结肠癌：近端结肠癌和远端结肠癌（包括直肠），两者的区分由脾曲决定。
