Table 4. Comparison of the RASS scores between the groups.

	Groups
RASS scores	PECS II	PS	p-value
1st hour
Mean + SD	0 0	0 + 0	-
Median (min-max)	0 (0-0)	0 (0-0)
2nd hour
Mean + SD	0 + 0	0 + 0	-
Median (min-max)	(0-0)	0 (0-0)
4th hour
Mean + SD	1.42 + 0.5	0.42 + 0.5	0.001 a**
Median (min-max)	1 (1-2)	0 (0-1)
6th hour
Mean + SD	1.08 + 0.72	1.02 + 0.62	0.632a
Median (min-max)	1 (0-2)	1 (0-2)
12th hour
Mean + SD	0.2 + 0.4	0.28 + 0.45	0.351a
Median (min-max)	0 (0-1)	0 (0-1)
24th hour
Mean + SD	0.38 + 0.49	0.28 + 0.45	0.290
Median (min-max)	0 (0-1)	0 (0-1)

aMann–Whitney U-test, **p < 0.01. RASS: Richmond agitation–sedation scale.