Table 1.
Sociodemographic characteristics of the subjects
| Subjects who consent to take blood samples | Subjects who refused to take blood samples | |||||
|---|---|---|---|---|---|---|
| Male 49.87% (n = 390) |
Female 50.13%(n = 392) | Total(782) | Male 48.52%(n = 328) | Female 51.48%(n = 348) | Total(676) | |
| Age, mean ± SD | 51.81 ± 8.07 | 52.79 ± 8.74 | 52.30 ± 8.43 | 54.17 ± 9.79 | 53.47 ± 10.24 | 53.81 ± 10.0* |
| Age group, % (n) | ||||||
| 40–50 | 41.87%(164) | 45.13%(176) | 43.48%(340) | 38.41%(126) | 44.54%(155) | 41.57%(281) |
| 50–59 | 36.99%(145) | 38.21%(149) | 37.60%(294) | 34.45%(113) | 29.89%(104) | 32.1%(217) |
| 60–69 | 16.58%(65) | 13.33%(52) | 14.96%(117) | 19.51%(64) | 16.67%(58) | 18.05%(122) |
| ≥ 70 | 4.59%(18) | 3.33%(13) | 3.96%(31) | 7.62%(25) | 8.91%(31) | 8.28%(56) |
| Ethnicity,% (n) | ||||||
| Tibetan | 99.74%(389) | 99.74%(391) | 99.74%(780) | 100%(328) | 100%(348) | 1000%(676) |
| Moinba | 0%(0) | 0.26%(1) | 0.10%(1) | 0%(0) | 0%(0) | 0%(0) |
| Others | 0.26%(1) | 0%(0) | 0.10%(1) | 0%(0) | 0%(0) | 0%(0) |
| Education,% (n) | ||||||
| Elementary education and below | 98.46%(384) | 99.23%(389) | 97.70%(763) | 48.60%(312) | 50.62%(325) | 99.22%(637) |
| Middle/high school | 1.28%(5) | 0.51%(2) | 0.90%(7) | 0.62%(4) | 0.16%(1) | 0.78%(5) |
| College and higher | 0%(0) | 0.26%(1) | 0.13%(1) | 0%(0) | 0%(0) | 0%(0) |
| BMI, mean ± SD | 25.25 ± 7.02 | 26.32 ± 17.31 | 25.82 ± 4.36 | 25.13 ± 11.63 | 24.45 ± 4.50 | 24.78 ± 8.85 |
BMI body mass index
*p < 0.05