Table 2 Characteristics of included studies for systematic review
Category | Subcategory | Frequency | Percent (%) |
|---|---|---|---|
Study design | Cross sectional | 8 | 66.7 |
| Â | Ecological | 1 | 8.3 |
| Â | Case series | 1 | 8.3 |
| Â | Retrospective cohort | 1 | 8.3 |
| Â | Prospective cohort | 1 | 8.3 |
Year of publication | 2015 | 1 | 8.3 |
| Â | 2016 | 3 | 25 |
| Â | 2017 | 5 | 41.7 |
| Â | 2018 | 2 | 16.7 |
| Â | 2019 | 1 | 8.3 |