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. Author manuscript; available in PMC: 2012 Jun 12.
Published in final edited form as: Int J Neuropsychopharmacol. 2007 Jun 11;11(2):249–254. doi: 10.1017/S1461145707007833

Table 1.

Demographic and clinical characteristics

Active DLPFC tDCS Active occipital tDCS Sham tDCS p valueb
n 21 9 10
Age [yr (s.d.)] 51.6 (7.7) 46.3 (5.8) 46.5 (7.1) 0.25
Gender (F/M) 14/7 6/3 7/3 0.98
Duration of disease [yr (s.d.)] 7.1 (6.2) 8.3 (7.6) 6.4 (7.4) 0.88
Refractorinessa (s.d.) 1.6 (1.2) 1.7 (1.2) 1.5 (1.5) 0.89
Baseline HDRS (s.d.) 21.1 (4.4) 21.6 (4.9) 21.9 (4.8) 0.89

tDCS, Transcranial direct current stimulation; DLPFC, dorsolateral prefrontal cortex; HDRS, Hamilton Depression Rating Scale; s.d., standard deviation.

a

As indexed by the number of failed antidepressants.

b

p value: one-way ANOVA for continuous variables and Fisher’s exact test for categorical variables.