中国食管癌胃癌高发区贲门癌流行趋势分析

目的]探讨食管癌胃癌高发区中贲门癌的发病特征。方法]对中国30个肿瘤登记处1988～2002年的胃癌发病登记资料进行分析。结果]全国30个登记处中，江苏扬中，山东临朐和广西扶绥因没有亚部位编码，只分析其它27个登记处的胃癌资料。27个市（县）胃癌新发病例58584例，其中贲门癌12609例，贲门癌占胃癌的21.52％。27个市（县）中食管癌和胃癌高发的有8个．其贲门癌占全部胃癌的39．43％．而其它非高发地区为13-30％。在资料较为完整的食管癌高发区中，磁县的胃癌发病率15年间无显著变化．但贲门癌发病率有升高趋势：而林州的胃癌和贲门癌发病率变化趋势均不明显。而城市地区中的天津、北京，胃癌发病率呈下降趋势，其中天津的贲门癌发病率显著下降。结论]食管癌和胃癌高发区中贲门癌在胃癌中所占比例明显高于其它地区，其中食管癌高发区尤为突出。食管癌高发区和城市地区比较，贲门癌发病的流行趋势显著不同．影响胃癌发病率。因此对贲门癌的防治应引起重视。

An Epidemiologic Trend Analysis on Cardiac Cancer in High Incidence Areas of Esophageal Cancer and Gastric Cancer in China

Purpose] To investigate the incidence characteristics of cardiac cancer in high incidence areas of esophageal cancer and gastric cancer. Methods] The gastric cancer incidence registration data in 30 registries in China from 1988 to 2002 were analyzed. Results] Among 30 cancer registries, Yangzhong, Linqu and Fusui were excluded because of no coding in sub-position of cancer. Gastric cancer data in the other 27 cancer registries were analyzed. There were 58 584 cases of new incident gastric cancer, includ...