Summary source characteristics of all included studies
| Publication year | Number of studies |
| 2005–2010 | 8 |
| 2011–2015 | 15 |
| 2016–2020 | 24 |
| 2021–2024 | 26 |
| Study design | |
| Interventional study | |
| Phase I/II randomised controlled trial | 3 |
| Phase III randomised controlled trial | 1 |
| Pilot/feasibility | 1 |
| Observational studies | |
| Cross-sectional | 49 |
| Case series | 10 |
| Case-control | 2 |
| Cohort | 1 |
| Conference proceedings | |
| Abstract | 6 |
| Country of institutional affiliation | |
| North America | 38 |
| Europe | 24 |
| Asia | 4 |
| Oceania | 4 |
| Middle East | 2 |
| South America | 1 |
| Africa | 0 |