Table 2.
Recruitment cost information for each study (RMB).
| Wave of recruitment | Tai Ji Quan for Osteoarthritis | Dumbbell for Healthy Brain | |||||
|---|---|---|---|---|---|---|---|
| Wave 1 | Wave 2 | Wave 3 | Wave 1 | Wave 2 | Wave 3 | Wave 4 | |
| MRI testing | 3960 | 8700 | 3700 | NA | NA | NA | NA |
| Remuneration | |||||||
| Neighborhood associations/residential committees | 600 | 800 | 600 | 400 | 800 | 400 | 200 |
| Medical personnel | 2600 | 2800 | 2600 | NA | NA | NA | NA |
| Research staff | 8000 | 5000 | 3000 | 860 | 3100 | 4200 | 1950 |
| Participants | 1540 | 2120 | 1340 | 532 | 1852 | 1320 | 660 |
| Research records | 378 | 464 | 285 | 240 | 900 | 450 | 225 |
| Transportation | 280 | NA | NA | 56 | 112 | 90 | 84 |
| Total | 48,767 | 18,431 | |||||
Abbreviations: MRI = magnetic resonance imaging; NA = not applicable.