Table 1.
Summary of identified evidence across all vulnerable populations.
| Vulnerable group | Systematic review—high quality (n) |
Systematic review—low quality (n) | Randomised controlled trials (n) | Gray literature evaluations (n) | |
|---|---|---|---|---|---|
| Reviews | Relevant studies in each review | ||||
| Some evidence identified | |||||
| Looked after | 7 | 11 | 3 | 3 | 0 |
| Homeless | 3 | 20 | 1 | 1 | 0 |
| Young offenders | 3 | 14 | 1 | 0 | 0 |
| Teenage parent | 2 | 0a | 0 | 7 | 0 |
| Experience of sexual abuse | 2 | 11 | 2 | 1 | 0 |
| Very little evidence identified | |||||
| Asylum seeker/refugee | 1 | 1 | 0 | 1 | 0 |
| Ethnic minority | 1 | 0a | 0 | 1 | 0 |
| Exposure to domestic violence or intimate partner violence | 0 | – | 1 | 1 | 0 |
| Living in socio-economically deprived areas | 1 | 0a | 2 | 1 | 0 |
| No evidence identified | |||||
| Unemployed | 0 | – | 0 | 0 | 0 |
| Out of school/excluded | 0 | – | 0 | 0 | 0 |
| Young carers | 0 | – | 0 | 0 | 0 |
| Total | 20 | 10 | 16 | 0 | |
a
Some systematic reviews failed to identify any studies with outcomes pertaining to mental health/well-being.