Table 1 Overview of results of the included studies with regard to intervention effectiveness

Svensson & Hansson (2014) [40]

Mental Health First Aid (Adult)

T C

T

T C

2/3 (67 %)

Krameddine et al. (2013) [41]

Role plays

C

T C

1/1 (100 %)

Hossain et al. (2009) [42]

Mental Health First Aid (Adult)

T C

T C

T C

3/3 (100 %)

Massey (2010) [43]

Mental Health First Aid (Adult)

T C

T

T C

2/3 (67 %)

Kitchener & Jorm (2004) [38]

Mental Health First Aid (Adult)

T

T C

T C

2/3 (67 %)

Luong et al. (2013) [51]

Online Training, Group discussions

T

0/1 (0 %)

Gould et al. (2007) [39]

Trauma Risk Management

T C

1/1 (100 %)

Stuart et al. (2013) [50]

Online Training

T C

T C

2/2 (100 %)

Knifton & Quinn (2009) [36]

Anti-stigma workshop

T C

T C

T C

3/3 (100 %)

Nishiuchi et al. (2007) [47]

Psychoeducation

T C

T

T

1/3 (33 %)

Compton et al. (2006) [44]

Crisis Intervention Training

T C

T C

2/2 (100 %)

Moffitt et al. (2014) [48]

Training course or Mental Health First Aid vs. leaflet session

T C

T C

C

2/2 (100 %)

Quinn et al. (2011) [37]

Anti-stigma workshop

T C

1/1 (100 %)

Jorm et al. (2010) [49]

Mental Health First Aid (Youth)

T C

T C

T C

3/3 (100 %)

Pierce et al. (2010) [45]

Mental Health First Aid (Youth)

T C

T

T C

2/3 (67 %)

Brandling & McKenna (2010) [46]

Mental Health First Aid (Youth)

T C

T C

2/2 (100 %)