Table 1.
Demographic information for participants in Tibetan townships of Gansu province.
| Items | Frequency | Proportion |
|---|---|---|
| County | ||
| Ganjia | 324 | 33.3 |
| Madang | 320 | 32.9 |
| Sangke | 328 | 33.7 |
| Gender | ||
| Male | 457 | 47.0 |
| Female | 515 | 53.0 |
| Races | ||
| Tibetans | 910 | 93.6 |
| Hans | 55 | 5.7 |
| Huizu | 7 | 0.7 |
| Occupations | ||
| Herdsmen | 811 | 83.4 |
| Part-time herdsman | 140 | 14.4 |
| Peasant | 12 | 1.2 |
| Education | ||
| Student | 1 | 0.1 |
| Preschooler | 136 | 14.0 |
| Illiteracy | 372 | 38.3 |
| Primary school | 288 | 29.6 |
| Middle school | 143 | 14.7 |
| High school or above | 14 | 2.3 |
| Religion | ||
| Buddhism | 964 | 99.2 |
| Islam | 6 | 0.6 |
| Other | 2 | 0.2 |
| Resident | ||
| Settle | 423 | 43.5 |
| Nomadism | 402 | 41.4 |
| Settle and nomadism | 132 | 13.6 |
| Serological tests | ||
| Positive | 92 | 9.5 |
| Negative | 880 | 90.5 |