[The risk factors of reflux esophagitis in Shandong farmers].

Objective: To investigate the risk factors of reflux esophagitis (RE) in farmers of Shandong province.

Methods: Five hundred and fifty six peasants (aged from 34 to 90 years old) were randomly selected from the rural general population in Yantai area, Shandong province. All participants received a face to face interview for relating clinical symptoms.