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Demographics, measurements of mean hiatal surface area and other diameters
| n | Mean age | Mean BMI±SD | Median HSA (cm2) | Median A-P diameter (mm) | Median transverse diameter (mm) | |
|---|---|---|---|---|---|---|
| GERD− | 173 | 43.85±14.88 | 28.1±5.1 | 4.89 (2.45-12.80) | 7.07 (4.48-13.06) | 7.58 (5.29-14.19) |
| GERD+ | 192 | 57.22±16.54 | 26.2±4.8 | 19.11 (2.92-87.76) | 15.48 (4.8437.18) | 16.55 (5.26-42.52) |
BMI: Body mass index, SD: Standard deviation, HSA: Hiatal surface area, GERD: Gastroesophageal reflux disease, A-P: Anterior-posterior
