STUDY ON PATHOGENESIS OF ESOPHAGEAL CARCINOMA AND ENDOSCOPIC DIAGNOSIS AND TREATMENT OF EARLY ESOPHAGEAL CANCER IN CHINA

摘要

Esophageal cancer (EC) is a leading cause of death in China and accounts for 26.5% of cancer deaths among males and 19.7% among females. During the past 30 years between 1959!!!1989, the highest incidence and mortality rate of EC have been maintained in Linxian county, a high-incidence area. The incidence was 155.23 per 100,000 in males and 100.57 per 100,000 in females; The mortality was 131.13 per 100,000 in men and 79.43 per 100,000 in women. Since 1990 years, a slow decline in the incidence and mortality of EC has been observed. Up to the end of the nineties, the incidence was 112.73 per 100,000 in males and 83.87 per 100,000 in females. The mortality was 84.17 per 100,000 in males and 66.93 per 100,000 in females. The descending rate of incidence and mortality was 27.38% and 35.81% in men, 16.61% and 15.74% in women, respectively. The decline of incidence and mortality is closely correlated with improvement of food composition and nutritional status of the inhabitants.