Table 2.

Postoperative comparison of VAS at rest in patients receiving superficial cervical plexus block versus ‘No block’ in patients undergoing modified radical mastoidectomy

Time interval	Group ‘Block’ (n=15)	Group ‘No block’ (n=15)	P
5 min	0.20±0.77 [0-3]	0.07±0.26 [0-1]	0.962
10 min	0.20±0.77 [0-3]	0.20±0.41 [0-1]	0.343
15 min	0.47±1.36 [0-5]	0.80±1.78 [0-6]	0.406
1 h	0.20±0.56 [0-2]	1.87±2.07 [0-5]	0.012*
4 h	0.20±0.41 [0-1]	0.80±1.15 [0-4]	0.085
8 h	0.07±0.26 [0-1]	0.73±1.44 [0-4]	0.125
12 h	0.00±0.00 [0-0]	0.20±0.56 [0-2]	0.150
18 h	0.33±1.29 [0-5]	0.07±0.26 [0-1]	0.962
24 h	0.07±0.26 [0-1]	0.27±1.03 [0-4]	0.962

Values are represented as mean±standard deviation (SD) [range]. VAS: Visual analogue scale, *P<0.05 is considered statistically significant