Characteristics | No. of Controls(%) | No. of Cases (%) | P Value |
---|---|---|---|
Age | |||
Mean ± SD | 51.85 ± 10.31 | 51.75 ± 9.39 | |
< 40 | 82(14.7) | 41(10.2) | 0.02 |
40- | 333(59.8) | 274(68.2) | |
≥ 60 | 142(25.5) | 87(21.6) | |
BMI | |||
≤ 18.5 | 35(6.3) | 14(3.5) | 0.12 |
18.5- | 274(49.2) | 211(52.5) | |
≥ 24.0 | 248(44.5) | 177(44.0) | |
Urban and Rural Status | |||
Rural | 236(42.4) | 232(57.7) | < 0.01 |
Urban | 321(57.6) | 170(42.3) | |
Education Level | |||
Primary School or Below | 162(29.1) | 98(24.4) | 0.27 |
Middle School | 175(31.4) | 135(33.6) | |
Senior School and Higher | 220(39.5) | 169(42.0) | |
Occupation Type a | |||
White Collar | 273(49.0) | 233(58.2) | 0.01 |
Blue Collar | 284(51.0) | 169(41.8) | |
Ethnicity | |||
Han | 529(95.0) | 386(96.0) | 0.27 |
Other | 28(5.0) | 16(4.0) |