Table 1.
Sample size assessment.
| SD | Mean (group 1) | Mean (group 2) | |
|---|---|---|---|
| Fasting gastric volume, mL | 64 | 230 | 277 |
| Δ Postprandial accommodation volume, mL | 85 | 490 | 553 |
| Aggregate symptom score (maximum 400) | 72 | 150 | 203 |
| Maximum tolerated volume, mL | 312 | 1,210 | 1,440 |
| Gastric emptying of solids T1/2, min | 36 | 120 | 147 |
| Gastric emptying of liquids T1/2, min | 9.7 | 22 | 30 |
| The table shows differences between two TCF7L2 genotype groups that could have been detected with approximately 80% power (two‐sided α= 0.05) using a two‐sample t‐test (assuming the observed pooled standard deviation [SD] listed in the table). | |||