An Epidemiologic Analysis of Precancerous Lesion in Esophageal and Cardiac with Esophageal Cancer Family Hereditary Factor in High Risk Areas

Objective To investigate the epidemiologic relation between the precancerous lesions in esophageal cardiac and the family hereditary factor. Methods Having analyzed the results of 2013 cases for endoscopic survey in high risk areas. Prevalence Relative risk (RR_1) and attribution risk (AR_1) of precancerous lesions were analyzed between positive mass with family hereditary in the esophageal cardiac cancer and negative mass. Simultaneously RR_2 and AR_2 analyzed between the first-degree relatives and the sec...