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Descriptive of reviewed articles
| Descriptive variable | n (%) |
|---|---|
| Place | |
| Hospital | 39 (93) |
| Other health-care organizations | 3 (7) |
| Country | |
| USA | 10 (24) |
| Asia | 26 (62) |
| Africa | 1 (2) |
| Europe | 5 (12) |
| Method | |
| Qualitative | 4 (10) |
| Quantitative | 38 (90) |
| Time | |
| Before 2010 | 6 (14) |
| After 2010 | 36 (86) |
