Table 4. Postoperative Pain Intensity^a.

Group	R	1H	4H	8H	16H	24H
Sufentanil	1.57 ± 0.675	2.82 ± 1.23	2.82 ± 1.00	2.02 ± 0.69	1.15 ± 0.36	1.08 ± 1.68
Magnesium	2.52 ± 1.41	5.32 ± 1.99	5.30 ± 1.77	4.05 ± 1.75	2.52 ± 1.50	1.52 ± 2.67
P value	0.001	0.005	0.003	0.0001	0,0001	0.0001

^aData are presented as mean ± SD (P < 0.05)