Table 2. Pain Scores Assessed by the Universal Pain Assessment Tool in the PAND and Control Groups at 0, 2, 4, 6, 12, and 24 Hours After Radical Neck Dissection Surgery.

Time (Hour)	PAND Group	Control Group	P Value	Statistical Significance
0	4.72 ± 2.25	5.72 ± 2.09	0.055	Not significant
2	3.83 ± 2.59	5.22 ± 2.04	0.014	Significant
4	3.27 ± 2.15	4.72 ± 1.80	0.003	Significant
6	3.22 ± 2.31	4.56 ± 1.89	0.009	Significant
12	2.44 ± 1.98	4.45 ± 1.91	0.000	Significant
24	2.06 ± 1.69	3.83 ± 2.16	0.000	Significant