Table II.

Comparison of the results of the variables with respect to groups. Data are given as mean (SD).

Variable	P300 (n = 30)	P600 (n = 30)	Control (n = 30)	P‡
Cumulative morphine consumption
PACU	8.03 (0.81)⁎†	6.93 (0.83)†	9.17 (0.38)	<0.001
2 h	13.03 (1.30)⁎†	11.37 (2.17)†	14.77 (1.45)	<0.001
4 h	20.63 (3.13)⁎†	17.20 (3.12)†	23.90 (3.20)	<0.001
6 h	27.70 (3.01)⁎†	22.67 (4.27)†	32.60 (5.30)	<0.001
24 h	40.80 (3.42)⁎†	33.79 (5.77)†	46.97 (6.67)	<0.001
VAS rest
PACU	7.0 (0.7)⁎	5.50 (0.51)†	7.20 (0.61)	<0.001
2 h	6.03 (0.66)⁎	4.37 (0.49)†	6.23 (0.56)	<0.001
4 h	5.10 (0.75)⁎	3.57 (0.72)†	5.30 (0.59)	<0.001
6 h	3.20 (0.60)⁎	2.53 (0.7)†	3.33 (1.0)	<0.001
24 h	1.57 (0.6)	1.47 (0.5)	1.73 (0.9)	0.39
VAS movement
PACU	7.97 (0.5)⁎	6.9 (0.6)†	8.27 (0.6)	<0.001
2 h	6.80 (0.6)⁎	6.17 (0.6)†	7 (0.8)	<0.001
4 h	5.6 (0.7)⁎	4.97 (0.49)†	5.83 (0.9)	<0.001
6 h	4.23 (0.6)⁎	3.57 (0.6)†	4.40 (1.0)	<0.001
24 h	2.57 (0.6)	2.43 (0.9)	2.73 (0.9)	0.40
Ramsay sedation score
PACU	2.53 (0.51)⁎	2.87 (0.51)†	2.33 (0.48)	<0.001
2 h	2.40 (0.56)⁎†	2.77 (0.43)†	2.03 (0.32)	<0.001
4 h	1.83 (0.53)	1.93 (0.25)†	1.60 (0.50)	0.01
6 h	1.50 (0.63)	1.67 (0.48)†	1.27 (0.45)	0.01
24 h	1.10 (0.31)	1.23 (0.50)	1.10 (0.31)	0.30
Patient satisfaction score
PACU	3.17 (0.37)⁎	2.73 (0.4)†	3.30 (0.5)	<0.001
2 h	2.87 (0.34)⁎	2.20 (0.4)†	2.97 (0.18)	<0.001
4 h	2.23 (0.4)⁎	1.87 (0.3)†	2.40 (0.49)	<0.001
6 h	1.63 (0.4)	1.37 (0.4)†	1.9 (0.60)	0.001
24 h	1.23 (0.43)⁎	0.93 (0.2)†	1.43 (0.50)	<0.001

P300 = patients given 150 mg of pregabalin; P600 = patients given 300 mg of pregabalin; PACU = postanesthesia care unit; VAS = visual analogue scale.

^⁎Significantly different compared with P600 (P < 0.05).

^†Significantly different compared with control (P < 0.05).

^‡1-way ANOVA test.