Comparison of Tongue Acupuncture and Traditional Acupuncture in the Treatment of Poststroke Dysarthria: A Meta-Analysis and Tongue Acupuncture System Classification Evaluation

Table 4

Subgroup analysis results.

Subgroup	N	Sample size EG	CG	OR	95% CI		I^2
Location of acupoints
Lingual surface	3	97	90	3.17	(1.19, 8.45)	0.021	0%
Sublingual	3	94	94	3.74	(1.70, 8.22)	0.001	0%
Both Lingual surface and sublingual	3	95	95	3.82	(1.77, 8.24)	0.001	0%
Number of operating methods
One operation method	4	137	130	2.97	(1.43, 6.15)	0.003	0%
Two operation methods	3	84	84	3.87	(1.67, 8.95)	0.002	0%
Three operation methods	2	65	65	4.71	(1.75, 12.66)	0.002	0%