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Description of included studies based on the study area: clustered into regions.
| Description | Number of studies | Percentage | |
|---|---|---|---|
| Study area | Addis Ababa area | 19 | 23.5 |
| Eastern Ethiopia | 5 | 6.5 | |
| Southern Ethiopia | 11 | 13.6 | |
| Oromia region | 13 | 16 | |
| Amhara region | 21 | 25.9 | |
| Tigray region | 12 | 14.8 | |
| Total | 81 | 100 | |
N: indicates the number of studies.
