Table 4 Meta-regression analysis.

From: Immediate and long-term efficacy of transcranial direct current stimulation (tCDS) in obsessive-compulsive disorder, posttraumatic stress disorder and anxiety disorders: a systematic review and meta-analysis

Moderator*

Coefficient

SMD (95% CI)

t

p

Specific symptoms

sessions

0.03

0.06 (0.11 to 0.17)

0.52

0.62

current

0.8

0.75 (−1.05 to 2.64)

1.05

0.33

session duration

−0.05

0.08 (−0.24 to 0.14)

−0.64

0.54

L-DLPFC

−1.12

1.03 (−3.65 to 1.41)

−1.08

0.32

L-SMA

−0.66

1.37 (−4.01 to 2.70)

−0.48

0.65

L-deltoid

−0.32

1.49 (−3.96 to 3.33)

−0.21

0.84

R-OFC

0.35

1.42 (−3.13 to 3.82)

0.24

0.82

R-cerebellum

−0.64

1.38 (−4.02 to 2.74)

−0.47

0.66

General anxiety

sessions

−0.01

0.16 (−0.45 to 0.44)

−0.05

0.96

current

0.17

1.03 (−2.68 to 3.02)

0.17

0.88

session duration

0

0.16 (−0.44 to 0.44)

−0.02

0.98

L-DLPFC

−0.99

1.39 (−4.84 to 2.86)

−0.71

0.52

R-cerebellum

0.39

1.92 (−4.94 to 5.72)

0.2

0.85

Follow-up of specific symptoms

sessions

0.05

0.09 (−0.18 to 0.28)

0.55

0.61

current

0.77

0.99 (−1.78 to 3.32)

0.77

0.47

session duration

0.01

0.16 (−0.41 to 0.42)

0.05

0.96

L-DLPFC

−0.53

1.29 (−3.84 to 2.78)

−0.41

0.7

L-deltoid

−0.92

1.82 (5.60 to 3.76)

−0.51

0.64

R-IFG

1.21

1.91 (−3.70 to 6.12)

0.63

0.56

  1. *The results of specific symptoms were based on R-IFG as the baseline; the remaining results were based on R-OFC as the baseline.