Table 1.
Technology used as intervention in the 42 studies reviewed
| Technology | Studies, n (%) |
| Computer | 6 (10) |
| CD ROM | 5 (9) |
| Film | 4 (6) |
| Internet | 18 (31) |
| Mass media | 6 (10) |
| Mobile | 3 (5) |
| Radio | 6 (10) |
| Television | 11 (19) |
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