Table 2 ΔGV and actual drinking volume in the two groups
|  | ΔGV (ml, mean ± SD) | actual drinking volume(ml) | P-value |
|---|---|---|---|
Group C (n = 50) | 298.2 ± 11.0 | 300 | 0.260 |
Group E (n = 50) | 300.2 ± 10.6 | 300 | 0.887 |
Total (n = 100) | 299.2 ± 10.9 | 300 | 0.470 |