|
Characteristics of survey sample at baseline |
|||
| Intervention N = 340 (%) |
Control N = 258 (%) |
P value |
|
|
|
|||
| Age |
0.046 |
||
| <20 years |
32.0 |
22.9 |
|
| 20–24 years |
61.5 |
69.4 |
|
| >24 years |
6.5 |
7.7 |
|
| Lived in Shanghai |
0.014 |
||
| <6 month |
5.0 |
0.8 |
|
| 6 month – 2 year |
69.7 |
73.6 |
|
| >2 year |
25.3 |
25.6 |
|
| Education |
0.776 |
||
| <10 grade |
6.8 |
8.2 |
|
| High school |
90.9 |
89.9 |
|
| College and above |
2.3 |
1.9 |
|
|
|
|||
| Has a boyfriend |
55.2 |
51.6 |
0.402 |
Qian et al. BMC Health Services Research 2007 7:77 doi:10.1186/1472-6963-7-77 |
|||