Fig 1.
Flow diagram of study populations.
Table 1.
Characteristics of the study population (N = 286).
Table 2.
Characteristics of the subjects with and without hiatal hernia and univariate analysis of risk factors for hiatal hernia.
Fig 2.
Receiver operating characteristic (ROC) curve analysis using fasting gastric juice pH as a predictor of hiatal hernia.
At a cut-off value of 2.1, gastric juice pH exhibited 49.1% sensitivity and 69.7% specificity for predicting hiatal hernia, and area under the curve (AUC) of 0.592 (95% CI 0.515–0.670, p<0.05).
Table 3.
Multivariate analysis: Relationship of hiatal hernia with fasting gastric juice pH, sex, body mass index, H. pylori infection status and age.