Table 4.

Analgesia and sedation scores ($\overline{x}\pm s$, n = 50).

Group	VAS score	Ramsay sedation score
Single-drug group	8.64 ± 1.89	1.42 ± 0.33
Composite group	6.14 ± 1.78	2.64 ± 0.77
t	6.809	−10.298
P	<0.001	<0.001