Table 3.

Results of meta-regression of moderators for the effect sizes of depression symptoms.

Moderators	N	Univariate coefficient	Z-value	p-value
Demographics:
Mean age (years)	25	0.0053	0.56	0.5751
Gender (percentage of female patients)	26	− 0.0103	− 1.78	0.0748
Baseline:
Baseline depression level	24	− 0.0028	− 0.33	0.7433
Intervention:
Total number of sessions	22	− 0.0119	− 1.22	0.2206
Duration per session	21	0.0008	0.35	0.7248
Total duration of intervention	21	− 0.0009	− 3.17	0.0015*
Type of control:
Passive vs. Active	26	0.5433	1.14	0.2535
Passive vs. TAU		0.062	0.18	0.8593
TAU vs. Active		− 0.5171	− 1.02	0.3056

TAU Treatment as usual.

*p < 0.05.