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Table 2 Effect of TRT intervention on the primary and secondary outcomes. Intention to treat analyses using linear mixed models

From: Effect of a self-help group intervention using Teaching Recovery Techniques to improve mental health among Syrian refugees in Norway: a randomized controlled trial

 

Intervention, n = 38

Control, n = 38

Intervention effect

 

Baseline (Q0) Mean (SD)

Last session (6 weeks) (Q1b) Mean (SD)

p-value*

Baseline (Q0) Mean (SD)

End of waiting period (6 weeks) (Q1a) Mean (SD)

p-value*

B (95% CI) **

p-value

IES-R

47.8 (13.6)

40.3 (12.8)

0.002

47.0 (13.8)

41.0 (17.0)

0.014

− 1.3 (− 8.7, 6.2)

0.74

GHQ-12

17.1 (6.5)

10.7 (5.2)

 < 0.001

15.0 (7.0)

14.0 (7.0)

0.253

− 3.8 (− 7.2, − 0.4)

0.02

BPI

3.6 (1.9)

3.6 (2.2)

0.594

3.6 (1.7)

3.6 (2.0)

0.687

− 0.01 (− 0.99, 0.97)

0.98

  1. *Paired t-test for within-group change
  2. **Regression coefficient for interaction term between group allocation and time