| Han n = 1085 | % | Yi n = 541 | % | P value |
---|---|---|---|---|---|
Sex | Â | Â | Â | Â | 0.881 |
 Male | 325 | 29.95 | 164 | 30.31 |  |
 Female | 760 | 70.05 | 377 | 69.69 |  |
Age (y) | Â | Â | Â | Â | 0.081 |
 40–44 | 128 | 11.80 | 78 | 14.42 |  |
 45–49 | 204 | 18.80 | 126 | 23.29 |  |
 50–54 | 212 | 19.54 | 104 | 19.22 |  |
 55–59 | 170 | 15.67 | 66 | 12.20 |  |
 60–65 | 178 | 16.41 | 82 | 15.16 |  |
 65+ | 193 | 17.79 | 85 | 15.71 |  |
Height (cm) | 158.34 + 7.52 |  | 156.89 + 7.11 |  | 0.0006 |
Weight (kg) | 60.68 + 9.61 |  | 57.41 + 10.15 |  | < 0.0001 |
BMI (kg/m2) | 24.15 + 3.01 |  | 23.26 + 3.38 |  | < 0.0001 |
Current Residence |  |  |  |  | < 0.0001 |
 Urban | 778 | 71.71 | 191 | 35.30 |  |
 Rural | 307 | 28.29 | 350 | 64.70 |  |
Birth Place |  |  |  |  | < 0.0001 |
 Urban | 322 | 29.68 | 4 | 0.74 |  |
 Rural | 763 | 70.32 | 537 | 99.26 |  |
Time spent in rural areas1 | 30.00 + 24.20 |  | 51.23 + 12.59 |  | < 0.0001 |
Education |  |  |  |  | < 0.0001 |
 Primary school or lower | 446 | 41.11 | 409 | 75.60 |  |
 Middle/high school | 497 | 45.81 | 118 | 21.81 |  |
 Undergraduate/graduate | 142 | 13.09 | 14 | 2.59 |  |
Occupation |  |  |  |  | < 0.0001 |
 Non-close | 645 | 59.45 | 485 | 89.65 |  |
 Close | 440 | 40.55 | 56 | 10.35 |  |
Income2 (¥) |  |  |  |  | < 0.0001 |
  < 800/month | 316 | 29.40 | 386 | 71.48 |  |
 800–2000/month | 372 | 34.60 | 101 | 18.70 |  |
  > 2000/month | 387 | 36.00 | 53 | 9.81 |  |
Hypertension | 445 | 40.01 | 184 | 34.01 | 0.006 |
Diabetes | 65 | 5.99 | 15 | 2.77 | 0.005 |
Smoking | Â | Â | Â | Â | 0.112 |
 Never | 837 | 77.14 | 436 | 80.59 |  |
 Past/current | 248 | 22.86 | 105 | 19.41 |  |
Drinking | Â | Â | Â | Â | 0.130 |
 Never | 762 | 70.23 | 360 | 66.54 |  |
 Past/current | 323 | 29.77 | 181 | 33.46 |  |
Activity level | Â | Â | Â | Â | 0.043 |
 Light | 165 | 15.21 | 58 | 10.72 |  |
 Moderate | 836 | 77.05 | 436 | 80.59 |  |
 Heavy | 84 | 7.74 | 47 | 8.69 |  |