TABLE 6.

Adverse effects of using tDCS reported by active tDCS or Sham groups.

Adverse effects (n, %)	Active tDCS (n = 11)			Sham tDCS (n = 12)			p value
	Mild	Moderate	Severe	Mild	Moderate	Severe
Headache	2 (18.2%)	1 (9.31%)	(9.1%)	1(8.3%)	2 (16.7%)	0 (0%)	0.59
Neck pain	0 (0%)	2 (18.2%)	0 (0%)	0 (0%)	0 (0%)	0 (0%)	0.21
Scalp pain	0 (0%)	1 (9.1%)	0 (0%)	0 (0%)	1 (8.3%)	0 (0%)	1.00
Tingling	3 (27.3%)	1 (9.1%)	0 (0%)	1 (8.3%)	1 (8.3%)	0 (0%)	0.47
Itching	1 (9.1%)	2 (18.2%)	1 (9.1%)	2 (16.7%)	1 (8.3%)	0 (0%)	0.59
Burning	3 (27.3%)	3 (27.3%)	1 (9.1%)	4 (33.3%)	1 (8.3%)	0 (0%)	0.40
Redness	1 (9.1%)	0 (0%)	0 (0%)	0 (0%)	1 (8.3%)	0 (0%)	0.36
Somnolence	2 (18.2%)	0 (0%)	0 (0%)	1 (8.3%)	0 (0%)	1 (8.3%)	0.51
Difficulty concentrating	1 (9.1%)	0 (0%)	0 (0%)	1 (8.3%)	1 (8.3%)	0 (0%)	0.61
Mood swings	0 (0%)	1 (9.1%)	0 (0%)	0 (0%)	0 (0%)	0 (0%)	0.47
Other	0 (0%)	0 (%)	0 (0%)	0 (0%)	0 (0%)	0 (0%)	1.00