Document Classification

Section Type: RESULTS

Text: The mean EGRAC values for the intervention and control groups were 1. 452 and 1. 606, respectively (P < 0. 01) ; compared with normal mucous membrane of esophagus, the lack of riboflavin increased the risk of esophageal squamous cell carcinoma (OR = 3. 921, 95 % CI = 1. 853 approximately 11. 936), but the risk of dysplasia did not increase (OR = 3. 421, 95 % CI = 0. 912-10. 159) ; after intervention, the six years average esophageal squamous cell carcinoma incidence of the intervention group (112. 46 / 100, 000) was lower than in the control group (142. 11 / 100, 000), although there was no statistical significance (u = 1. 858, P > 0. 05).