Table 3.

Comparison of VAS scores between the two groups of patients ($\overline{\text{x}}\pm \text{s}$).

Groups	Immediately after surgery	6 h after surgery	12 h after surgery	24 h after surgery
DEX group (n = 50)	1.46 ± 0.76	3.08 ± 0.68	2.23 ± 1.12	1.66 ± 0.24
NS group (n = 50)	1.80 ± 0.81	3.85 ± 0.73	2.95 ± 0.97	2.28 ± 0.35
t	2.165	5.458	3.436	10.33
P	0.033	0.001	0.001	0.001