Table 1 Recruiting procedure and response rates in Hengyang and Shenzhen city
| Â | Â | Invited by phone (C/I) | Invited when using services (C/I) | Total (C/I) | Response rate |
|---|---|---|---|---|---|
Hengyang | CDC | 40/54 | 15/22 | Â | Â |
HIV clinic | 60/85 | 50/60 | 193/256 | 75.40% | |
MMT clinic | N/A | 28/35 | Â | Â | |
Shenzhen | CDC | 40/60 | 25/31 | 65/91 | 71.40% |