Table 2.

Effects on VAS and cortisol level before and after the treatment session.

	Laser acupuncture group (n = 20)			Control group (n = 20)
	Before	After	p a	Before	After	p a
VAS	6.75 ± 1.46	4.20 ± 1.88∗	0.001	6.84 ± 1.41	5.80 ± 1.41	0.001
Cortisol level	11.41 ± 4.57	8.90 ± 3.78	0.01	10.57 ± 4.74	8.38 ± 3.64	0.03

p ^a meant the significant difference before and after treatment session. ^∗p < 0.05, laser acupuncture versus control group.