Table 2.

Adverse effects in different groups

Characteristics	Group A (n=30)		Group B (n=30)		Group C (n=30)		Statistical significance*
	No.	%	No.	%	No.	%	χ2	P
Hypotension	24	80	19	63.33	22	73.33	2.105	0.349
Bradycardia	6	20	4	13.33	10	33.3	3.60	0.165
Nausea and vomiting	2	6.7	2	6.7	6	20.0	3.60	0.165
Shivering	4	13.3	0	0	7	33.3	7.664	0.022
Sedation	0	0	0	0	7	23.33	15.181	<0.001