Table 6 Articles with significant improvement of mental health-related outcomes according to intervention target

Managing and coping with stress (n = 3)

1 (33%)

[60]

Preventing stress/mental health impairment (n = 11)

10 (91%)

[36, 37, 45, 46, 54, 57, 58, 61, 65, 77]

Strengthening mental health (n = 6)

5 (83%)

[56, 59, 73,74,75]

Symptom reduction (n = 17)

11 (65%)

[20, 39, 41, 51, 52, 62, 63, 66, 69,70,71]

Main intervention target not in the field of mental health (n = 7)

1 (14%)

[67]