Table 1 Descriptive statistics of variables used, n (%)
Variables | Overall | Men | Women | p value |
|---|---|---|---|---|
Total | 55,726 (100.0) | 27,344 (49.1) | 28,382 (50.9) | Â |
Age (years), Mean (SD) | 48.0 (16.1) | 48.6 (16.2) | 47.4 (16.0) | <  0.001 |
Overweight |  |  |  | <  0.001 |
 No | 38,624 (69.3) | 18,220 (66.6) | 20,404 (71.9) |  |
 Yes | 17,102 (30.7) | 9124 (33.4) | 7978 (28.1) |  |
Residence |  |  |  | <  0.001 |
 Rural | 26,621 (47.8) | 13,277 (48.6) | 13,344 (47.0) |  |
 Urban | 29,105 (52.2) | 14,067 (51.4) | 15,038 (53.0) |  |
Ethnicity |  |  |  | <  0.001 |
 Han | 51,269 (92.0) | 26,056 (91.8) | 25,213 (92.2) |  |
 Minority | 4457 (8.0) | 2326 (8.2) | 2131 (7.8) |  |
Education | Â | Â | Â | 0.001 |
 Less than college | 46,964 (84.3) | 22,617 (82.7) | 24,347 (85.8) |  |
 College or above | 8762 (15.7) | 4727 (17.3) | 4035 (14.2) |  |
Household income |  |  |  | <  0.001 |
 Very low | 3748 (6.7) | 1862(6.8) | 1886 (6.6) |  |
 Low | 18,080 (32.4) | 8784 (32.1) | 9296 (32.8) |  |
 Medium | 29,527 (53.0) | 14,355 (52.5) | 15,172 (53.5) |  |
 High | 4187 (7.5) | 2252 (8.2) | 1935 (6.8) |  |
 Very high | 184 (0.3) | 91 (0.3) | 93 (0.3) |  |