Table 1.

Comparison of PONV scores between the two groups of patients at various postoperative time periods ($\overline{X}$ ± s, score, n = 53).

Group	0–6 h	6–12 h	12–24 h	24–48 h (mean)
Control group	3.38 ± 0.82	3.52 ± 0.77	3.07 ± 0.81	0.86
Experimental group	2.52 ± 0.61	2.59 ± 0.68	2.23 ± 0.72	0
t	6.126	6.591	5.643	9.632
P	≤0.001	≤0.001	≤0.001	≤0.001