Multivariate regression analysis of risk factors for acidic reflux
| Risk factor | Odds ratio | Standard error | p Value |
| Hiatal hernia | 5.26 | 1.75 | <0.001 |
| Position of acid pocket | |||
| â–¶Supradiaphragmatic | 5.33 | 1.67 | <0.001 |
| â–¶In hiatus hernia | 2.69 | 0.60 | <0.001 |
| Distance between pocket and SCJ during TLOSR (cm) | 0.39 | 0.30 | <0.01 |
SCJ, squamocolumnar junction; TLOSR, transient lower oesophageal sphincter relaxation.