Design | Which includes: | Â | Number of studies |
---|---|---|---|
Qualitative | Â | Â | 46 |
Quantitative | Â | Â | 139 |
 | ‘Quantitative’ | 11 |  |
 | Census | 2 |  |
 | Cohort | 10 |  |
 | Cross sectional | 82 |  |
 | Longitudinal | 8 |  |
 | Prospective | 8 |  |
 | Survey | 11 |  |
 | Retrospective analysis | 7 |  |
Mixed methods | Â | Â | 6 |
Reviews | Â | Â | 28 |
 | Review | 5 |  |
 | Integrative review | 2 |  |
 | Narrative review | 7 |  |
 | Realist review | 1 |  |
 | Systematic review | 13 |  |
Intervention studies | Â | Â | 39 |
 | Before and after | 12 |  |
 | Intervention study | 1 |  |
 | Non-randomised experimental | 11 |  |
 | Quasi-experimental | 3 |  |
 | Randomised | 12 |  |
Case control/ case study | Â | Â | 9 |
Economic evaluation | Â | Â | 2 |
Evaluation | Â | Â | 3 |
Other | Â | Â | 6 |
TOTAL | Â | Â | 278 |