Table 1.
General information on the healthy population used in our study
| White thin | White thin greasy | White thick greasy | White thick dry | Yellow thin | Yellow thin greasy | Yellow thick greasy | Yellow thick dry | |
|---|---|---|---|---|---|---|---|---|
| Number of cases | 19 | 22 | 12 | 1 | 6 | 21 | 10 | 3 |
| Age | 46.9 ± 6.18 | 44.0 ± 4.78 | 47.8 ± 6.18 | 36 | 46.3 ± 7.87 | 44.9 ± 5.53 | 45.7 ± 3.97 | 54 ± 1.73 |
| Males(%) | 1(5.26%) | 5(22.73%) | 7(58.33%) | 0(0%) | 2(33.33%) | 4(19.05%) | 4(40%) | 0(0%) |
| Females(%) | 18(94.74%) | 17(77.27%) | 5(41.67%) | 1(100%) | 4(66.67%) | 17(80.95%) | 6(60%) | 3(100%) |
| BMI | 24.0 ± 2.50 | 25.4 ± 3.74 | 24.5 ± 2.72 | 23.18 | 23.9 ± 2.38 | 23.9 ± 2.34 | 24.0 ± 2.22 | 23.5 ± 3.91 |
| Years resident in Beijing | 29.2 ± 18.0 | 29.7 ± 17.2 | 19.6 ± 16.2 | 14 | 29.2 ± 23.7 | 28 ± 17.2 | 20.6 ± 14.2 | 54 ± 1.73 |
Data are presented as mean ± SD