Quality assessment
| Article | Clear aim | Appropriate methodology | Appropriate research design | Appropriate recruitment strategy | Data collection addressed the research issues | Adequate consideration of reflexivity | Ethical issues | Sufficient rigour of data analysis | Clear statements of findings | Valuable research | Total |
| Fereday et al38 | Yes | Yes | 3 | 2 | 3 | 1 | 3 | 3 | 3 | 3 | 21 |
| Happ et al42 | Yes | Yes | 3 | 2 | 3 | 1 | 3 | 3 | 3 | 3 | 21 |
| Moola 39 | Yes | Yes | 3 | 3 | 3 | 2 | 3 | 3 | 3 | 3 | 23 |
| Moola 41 | Yes | Yes | 3 | 2 | 3 | 2 | 3 | 3 | 3 | 3 | 22 |
| Moola et al40 | Yes | Yes | 3 | 3 | 3 | 2 | 3 | 3 | 3 | 3 | 23 |
| Shelley et al44 | Yes | Yes | 3 | 3 | 3 | 1 | 3 | 3 | 2 | 3 | 21 |
| Swisher43 | Yes | Yes | 3 | 2 | 3 | 2 | 3 | 3 | 3 | 3 | 22 |