RESUMO
Purpose:To explore the relationship between genetic polymorphisms of p53 codon72 and the risk of gastric cancer.Methods:A population based case control study was conducted in Taixing, Jiangsu Province, China, and 204 gastric cancer cases and 415 controls were collected. Results:Distribution of Pro/Pro genotype in cancer cases was significantly higher than controls. The OR and 95%CI of Pro/Pro or Pro/Arg genotype was 1.5 (1.01～2.23) compared with Arg/Arg genotype. Pro/Pro or Pro/Arg genotype may interact with cigarette smoking, alcohol drinking, river water drinking and high salt food intake. Conclusions:Pro genotype may be related with the risk of gastric cancer and may also interact with environmental risk factors to increase the risk of gastric cancer.