Table 4.

Pooled effects of self-guided stress management programs for preselected college students on target outcomes compared with control groups.

	n	Effect size			Heterogeneity		NNT
		g	95% CI	p	I2	95% CI around I2
Overall effects	4	0.34	0.16–0.52	0.000	0	0–79	5.26
Symptom outcomes
Stress	3	0.27	−0.04–0.58	0.087	56	0–88	6.58
Anxiety	3	0.38	0.18–0.58	0.000	0	0–20	4.72
Depression	3	0.29	0.10–0.49	0.003	0	0–66	6.17