Table 6.

Comparison of the incidence of perioperative adverse events between the SGB and control groups (n, %)

Group	Hoarseness	Hematoncus	Dizzy	Diaphragmatic nerve block	Nausea and vomiting	Total
Control	3 (7.32)	5 (12.19)	2 (4.88)	0 (0)	4 (9.76)	14 (31.71)
SGB	1 (2.44)	2 (4.88)	1 (2.44)	1 (2.44)	1 (2.44)	6 (14.63)
χ2 value	0.263	0.625	0.000	-	0.852	4.232
P value	0.608	0.429	1.000	-	0.359	0.039

Note: SGB: stellate ganglion block.