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Recruitment cost per enrolled participant by method
| Investigator | Method of recruitment | Cost per enrolled participant (US dollar/person) |
|---|---|---|
| Tate et al. [20] | Television | $1094 |
| Print media | $812 | |
| Radio | $636 | |
| Mass mailing | $332 | |
| Whitaker et al. [21] (Systematic Review-35 studies) | $14 | |
| Medina-Ramirez et al. [23] | Public bus cards | $643 |
| Website banner | $387 | |
| Television | $191 | |
| $74 |
