Table 2.

The details regarding surgery are shown

Variable	Group P (n=25)	Group C (n=25)	Group N (n=25)	p-value
Duration of surgery (min)	153.2±30.0	143.4±30.4	138.4±27.9	0.19
No. of laminectomies				0.961
1	14	13	13
2	10	11	10
3	1	1	2
Blood loss (mL)	213.2±55.2	199.2±62	186.3±75.2	0.52
Fluid transfused (mL)	1,600.0±570	1,760.2±600	1,477.8±360	0.15

Values are presented as mean±standard deviation or number, unless otherwise stated.