Table 3.

Effect sizes according to sub-clusters.

Construct	k	Mean ES, dc	CI	SE	p	Q	p	I2 %
Anxiety	9	0.47**	0.09–0.84	0.192	0.015	42.88	<0.001	81.34
Depression	18	0.54***	0.30–0.78	0.124	<0.001	65.35	<0.001	73.99
Physiological variables	2	0.88**	0.22–10.54	0.338	0.009	2.63	0.105	61.98
Schizophrenia (pos symptoms)	4	0.40*	−0.01–0.79	0.205	0.05	7.99	0.046	62.45

k, number of studies; ES, effect size; CI, confidence interval; SE, sampling error;

^*p < 0.05;

^**p < 0.01;

^***p < 0.001; Q, parameter of heterogeneity.