Transcranial Direct Current Stimulation in Tinnitus Patients: A Systemic Review and Meta-Analysis

Table 2

Forest plot of effect sizes (Hedges’ g) for active versus sham transcranial direct current stimulation. CI, confidence interval.

Model	Study name	Statistics for each study							Hedges’s g and 95% CI
		Hedges’s; g	Standard error	Variance	Lower limit	Upper limit	𝑍 value	𝑃 value
	Fregni et al. (2006) [30]	0.936	0.531	0.282	−0.104	1.976	1.764	0.078
	Garin et al. (2011) [37]	0.709	0.320	0.102	0.082	1.336	2.217	0.027
Random		0.770	0.274	0.075	0.233	1.307	2.809	0.005