Table 3.

Comparison between CBT and other forms of treatment.

Study	Type of CBT	Type of control	Hedges's g	95% CI	Major finding
Buntrock et al. [43, 44]	i-CBT	Internet psychoeducation	−0.28	−0.50 to −0.06	Greater significant improvement in depressive symptoms was found in the i-CBT group compared to the control group
Pibernik-Okanović et al. [14]	g-CBT	1. Physical exercise 2. EUC	−0.16	−0.51 to 0.20	There was a significant improvement in depressive symptoms, but no significant difference between all groups
Vázquez et al. [59]	g-CBT	Relaxation training	0.09	−0.25 to 0.43	There was a significant improvement in depressive symptoms, but no significant difference between all groups
Overall: I2 = 39%; g = −0.14, Sig (p=0.20)					−0.14 (−0.37 to 0.08)

Abbreviations: CBT, cognitive behavioral therapy; CI, confidence interval; EUC, enhanced usual care; g-CBT, group cognitive behavioral therapy; i-CBT, internet cognitive behavioral therapy; i-PST, internet problem-solving therapy; NS, no significant difference; WL, waitlist.