Waves 1–3 retention numbers and rates for adult female smokers
| City | Wave 1 sample | Wave 2 recontacts | Wave 3 recontacts |
|---|---|---|---|
| Beijing | 39 | 36 (92.3%) | 32 (82.1%) |
| Shenyang | 41 | 30 (73.2%) | 17 (41.5%) |
| Shanghai | 19 | 17 (89.5%) | 17 (89.5%) |
| Changsha | 68 | 57 (83.8%) | 51 (75.0%) |
| Guangzhou | 45 | 35 (77.8%) | 32 (71.1%) |
| Yinchuan | 19 | 17 (89.5%) | 14 (73.7%) |
| Total | 231 | 192 (83.1%) | 163 (70.6%) |