Table 3.

Adverse events.

Characteristic	Dexmedetomidine group	Control group	χ2	P value
Total patients, no.	54	52	NA	NA
Severe hypoxemia (n, %)	1 (1.9)	1 (1.9)	0.001	0.979
Intra-hypotension (n, %)	6 (11.1)	6 (11.5)	0.005	0.945
Intra-hypertension (n, %)	8 (14.8)	10 (19.2)	0.366	0.545
Intra-bradycardia (n, %)	13 (24.1)	5 (9.6)	3.928	0.047
Intra-tachycardia (n, %)	3 (5.6)	5 (9.6)	0.626	0.429

NA not applicable.