Table 4: The number of patients who developed nausea and vomiting during the 24 postoperative hours in the two studied groups.

Time Group B
n=30 		Group BD
n=30 		p value
  After 2 hours 9 (30.0%) 0 (0.0%) 0.02
  After 4 hours 30 (100.0%) 0 (0.0%) < 0.001
  After 6 hours 30 (100.0%) 2 (6.7%) < 0.001
  After 12 hours 30 (100.0%) 5 (16.7%) < 0.001
  After 24 hours 30 (100.0%) 5 (16.7%) < 0.001

Data presented as number (%)