Group | No. of cases | Amount of residual gastric juice (Mean ± SD, ml) | Reflux misaspiration (Cases) |
Control | 443 | 24.83 ± 4.66 | 3 |
Experimental | 443 | 26.36 ± 3.41 | 2 |
X2/t value |
| 0.78 | 0.201 |
P-value |
| 0.86 | 0.654 |