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Table 2 Summary of univariate meta-regression analyses

From: Non-invasive brain stimulation combined with psychosocial intervention for depression: a systematic review and meta-analysis

Covariate

Coefficient (E)

95%CI

R2 (%)

p-Value

Lower

Upper

Continuous

     

Participant’s age, year

0.01 (0.01)

-0.01

0.04

9.95

.24

Session of NIBS, times

0.10 (0.05)

0.00

0.20

20.83

.06

Session of psychosocial intervention, times

0.00 (0.00)

-0.01

0.01

0.00

.98

Density of tDCS, mA

0.26 (0.39)

-0.60

1.12

0.00

.67

Categorical

     

Clinical condition

     

MDD

  

Referent

  

Other disease

-0.52 (0.32)

-1.19

0.16

9.28

.12

Stimulation sequence

     

NIBS first

  

Referent

  

NIBS last

-0.08 (0.21)

-0.55

0.38

0.00

.70

Simultaneous

0.26 (0.20)

-0.17

0.69

0.00

.21

Stimulation site

     

Central

  

Referent

  

Frontal

0.74 (0.30)

0.11

1.36

91.57

.02

Prefrontal

0.45 (0.49)

-0.62

1.51

91.57

.38