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Table 2 Baseline characteristics of episodic migraineurs randomized into tDCS and sham subgroups

From: Tracking tDCS induced grey matter changes in episodic migraine: a randomized controlled trial

 

tDCS (N = 11)

Sham (N = 13)

p value

Age, years

41.0 ± 14.8

35.1 ± 9.7

0.251

Female Sex, no. (%)

10 (90.9)

13 (100)

0.458

Average number of migraine days during baseline period

4.7 ± 2.2

6.4 ± 2.7

0.118

Average migraine intensity during baseline period

6.3 ± 1.2

5.4 ± 1.8

0.199

Disease duration, years

22.0 ± 12.4

18.5 ± 11.6

0.546

Aura, no. (%)

7 (63.6)

8 (61.5)

1.000

Number of stimulation days

30.1 ± 2.9

28.8 ± 1.9

0.147

HADS-D score during baseline period

3.8 ± 2.2

4.1 ± 3.4

0.829

FUP1, days

48.7 ± 6.9

50.2 ± 8.5

0.644

FUP2, days

161.5 ± 52.5

174.2 ± 69.5

0.352

  1. FUP1 first follow-up; FUP2 second follow-up; HADS-D depression subscale of the Hospital Anxiety and Depression Scale; two-sided t-tests were applied for comparison of continuous variables; where the criterion of normal distribution was not met (FUP2, number of stimulation days), Wilcoxon rank-sum test was used; Fisher’s exact test was performed for comparison of sex and aura between tDCS and sham. Modified from Pohl et al. [32].