Table 1. Demographic characteristics of MSM recruited between 2009 and 2013 in China (N = 171, 311).
| Variables | 2009 (N = 17431) |
2010 (N = 34191) |
2011 (N = 37099) |
2012 (N = 39910) |
2013 (N = 42680) |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| homosexual % | bisexual % | homosexual % | bisexual % | homosexual % | bisexual % | homosexual % | bisexual % | homosexual % | bisexual % | |
| Percentage of the class | 77.1 | 22.9 | 74.3 | 25.7 | 71.6 | 28.4 | 75.2 | 24.8 | 79.0 | 21.0 |
| Sampling site/methods | ||||||||||
| Pub, Disco, Tearoom, or Club | 35.9 | 36.1 | 33.0 | 33.4 | 27.7 | 30.7 | 28.5 | 28.6 | 26.5 | 22.7 |
| Spa or bathhouse, Sauna or Massage | 11.1 | 14.0 | 11.0 | 15.4 | 12.7 | 17.2 | 11.2 | 15.2 | 9.8 | 11.7 |
| Park, Public Restroom, or Public Lawn | 11.6 | 17.8 | 9.5 | 11.3 | 7.9 | 9.4 | 11.1 | 12.9 | 8.2 | 13.7 |
| Internet | 27.0 | 20.3 | 26.2 | 21.7 | 31.9 | 22.4 | 31.7 | 25.9 | 35.1 | 27.9 |
| Others | ||||||||||
| 13.1 | 10.9 | 18.8 | 16.9 | 19.2 | 20.0 | 17.3 | 17.1 | 20.1 | 23.8 | |
| Age | ||||||||||
| 15–24 | 48.6 | 26.0 | 45.7 | 21.9 | 44.1 | 18.8 | 40.2 | 17.4 | 36.5 | 13.3 |
| 25–49 | 49.3 | 71.1 | 52.0 | 74.4 | 53.1 | 77.2 | 56.8 | 78.1 | 60.0 | 81.6 |
| 50− | 2.1 | 2.9 | 2.3 | 3.8 | 2.8 | 3.9 | 3.0 | 4.5 | 3.5 | 5.1 |
| Marital status | ||||||||||
| Never Married and not cohabited | 82.0 | 41.8 | 79.6 | 36.6 | 78.1 | 31.2 | 77.9 | 30.8 | 76.5 | 29.9 |
| Married | 10.4 | 51.8 | 13.2 | 57.3 | 14.3 | 61.9 | 14.0 | 63.2 | 14.6 | 64.4 |
| Never married but cohabited | 1.4 | 2.7 | 1.0 | 2.8 | 0.8 | 3.3 | 1.2 | 2.2 | 1.5 | 2.2 |
| Divorced or widowed | 6.0 | 3.5 | 5.9 | 3.0 | 6.8 | 3.5 | 6.7 | 3.7 | 7.4 | 3.4 |
| Resident | ||||||||||
| The sampling province | 84.4 | 83.2 | 82.0 | 81.0 | 83.2 | 85.1 | 84.3 | 84.5 | 85.1 | 84.5 |
| Other province | 15.5 | 16.5 | 17.6 | 18.6 | 16.6 | 14.8 | 15.5 | 15.4 | 14.8 | 15.4 |
| Education | ||||||||||
| Illiteracy or only attended elementary | 2.5 | 4.6 | 2.5 | 4.0 | 2.8 | 4.3 | 2.8 | 4.3 | 2.8 | 4.4 |
| Attended Junior high school | 17.4 | 24.0 | 17.3 | 23.8 | 17.4 | 22.5 | 16.8 | 23.5 | 18.4 | 23.7 |
| Attended Senior high school or above | 80.0 | 71.2 | 80.0 | 72.0 | 79.7 | 73.1 | 80.4 | 72.2 | 78.7 | 71.8 |