Consistent condom use, knowledge about AIDS and about condom use, and condom use self efficacy at each visits, cohort of sex workers, Guangzhou, China, March 1998–October 1999
| No | Consistent condom use (%) | Good knowledge about AIDS (%) | Good knowledge about condom use (%) | Good condom use self efficacy (%) | |
|---|---|---|---|---|---|
| *Indicating the trends by using GEE. | |||||
| Intake visit | 966 | 30.1 | 4.3 | 23.6 | 32.4 |
| First follow up visit | 815 | 38.4 | 39.1 | 37.2 | 58.3 |
| Second follow up visit | 626 | 58.8 | 85.5 | 57.7 | 82.9 |
| Third follow up visit | 512 | 81.4 | 98.6 | 79.3 | 95.7 |
| p Value* | <0.001 | <0.001 | <0.001 | <0.001 | |