Table 5 Characteristics of included studies
General characteristics | Descriptions | Number | Percentage |
|---|---|---|---|
Study locations | |||
China | 16 | 55.17 | |
USA | 6 | 20.69 | |
Canada | 2 | 6.90 | |
UK | 1 | 3.45 | |
Netherlands | 2 | 6.90 | |
Ethiopia | 1 | 3.45 | |
Kenya | 1 | 3.45 | |
Study design | |||
Quantitative studies | 3 | 10.34 | |
Qualitative studies | 14 | 48.28 | |
Mixed-method studies | 12 | 41.38 | |
Integration type | |||
Horizontal | 13 | 44.83 | |
Vertical | 16 | 55.17 | |