Association of esophageal hiatus size with reflux esophagitis and type I hiatal hernia in patients with obesity

Figure 3 Spearman’s correlation test between body mass index and esophageal hiatus size. A: Correlation between body mass index (BMI) and esophageal hiatus area with a correlation coefficient of 0.72 (P < 0.01), showing a linear positive correlation of moderate intensity; B: Correlation between BMI and esophageal hiatus transverse diameter with a correlation coefficient of 0.69 (P < 0.01), showing a linear positive correlation of moderate intensity; C: Correlation between BMI and esophageal hiatus sagittal diameter with a correlation coefficient of 0.54 (P < 0.01), showing a linear positive correlation of moderate intensity. BMI: Body mass index.