Table 1.
Countries of origin of included studies
| Country | Number of studies |
|---|---|
| India | 9 studies [36, 43, 48, 58–60, 64, 68, 74] |
| Turkey | 9 studies [39, 51–54, 56, 57, 67, 71] |
| Brazil | 6 studies [40, 46, 47, 49, 75, 85] |
| South Africa | 3 studies [35, 55, 66] |
| Kenya | 2 studies [65, 73] |
| Rwanda | 2 studies [37, 42] |
| Uganda | 2 studies [69, 72] |
| Thailand | 2 studies [41, 44] |
| Mexico | 1 study [34] |
| China | 1 study [70] |
| Ghana | 1 study [38] |
| Sri Lanka | 1 study [62] |
| Ukraine | 1 study [45] |
| Botswana | 1 study [50] |
| Morocco | 1 study [63] |
| Multi-country (Laos, Mongolia, Nepal, Sri Lanka) | 1 study [61] |