Table 2.

Analysis of IL-6, IL-8, and TNF-α levels after treatment.

Outcomes	Number of included studies	Heterogeneity		Effect model	SMD (95%CI)	P
		P	I 2 (%)
IL-6	3	0.49	0	Fixed-effects model	−1.61 [−1.91, −1.30]	<0.00001
IL-8	3	0.31	13	Fixed-effects model	−1.68 [−1.99, −1.38]	<0.00001
TNF-α	3	0.59	0	Fixed-effects model	−1.68 [−1.98, −1.37]	<0.00001