Characteristics of included documents
| Characteristic | No | % | |
| Document source | Journal | 28 | 57.2 |
| Report | 8 | 16.3 | |
| Book | 7 | 14.3 | |
| Website | 6 | 12.2 | |
| Publication year | 1996–2000 | 8 | 16.3 |
| 2001–2010 | 15 | 30.6 | |
| 2011–2021 | 26 | 53.1 | |
| Discipline | |||
| Health sciences | Health sciences* | 23 | 46.9 |
| Nursing | 3 | 6.1 | |
| Public health | 3 | 6.1 | |
| Social sciences | Social sciences* | 11 | 22.5 |
| Education | 4 | 8.2 | |
| Management | 3 | 6.1 | |
| Public services | 2 | 4.1 | |
| Total | 49 | 100.0 | |
*Unknown specific discipline.