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Comparison of expected cost, time, and exclusion rate per 100 participants by recruitment method.
| Recruitment method | Cost (US $) | Time to recruit (days) | Excluded participants (per 100) |
| Facebook and Instagram | 1314 | 15.22 | 5.6 |
| YouTube | 2427 | 26.95 | 3.7 |
| RDSa | 1031 | 69.93 | 9.6 |
aRDS: respondent-driven sampling.
