Table 3.

Intervention efficacy: proportion of reviews reporting favorable results per outcome.

	Distress (n=9), n (%)	Depression (n=13), n (%)	Anxiety (n=5), n (%)	Stress (n=4), n (%)	Quality of life (n=17), n (%)	Well-being (n=4), n (%)
Mostly favorable outcomesa	3 (33)	10 (77)	1 (20)	4 (100)	6 (35)	1 (25)
Mixed findingsa	1 (11)	1 (8)	3 (60)	0 (0)	2 (12)	0 (0)
Mostly null or negative findingsa	5 (56)	2 (15)	1 (20)	0 (0)	9 (53)	3 (75)

^aMostly favorable outcomes are defined as a majority of studies finding at least significant pre-post effects. Mixed findings refer to reviews where 38% to 50% of the studies found significant pre-post effects. Mostly null or negative findings refer to reviews where <38% (3/8) of the included studies found positive effects.