Table 1 Characteristics of participants by gender from 4 rural communities, Deqing, China
Characteristics | Men (n = 1865) | Women (n = 2641) | Statistical test for gender difference |
|---|---|---|---|
|  | Mean ± SD | Mean ± SD |  |
Age (years) | 47.3 ± 9.5 | 46.6 ± 9.6 | t = 2.56, P = 0.011 |
BMI (kg/m2) | 22.6 ± 2.7 | 22.2 ± 2.9 | t = 4.60, P < 0.001 |
| Â | No. (%) | No. (%) | Â |
Years of education | Â | Â | Â |
   ≤ 9 | 998(53.7) | 1768(67.4) | χ2 = 86.02, P < 0.001 |
   > 9 | 861(46.3) | 857(32.6) |  |
Farmer | Â | Â | Â |
   Yes | 1326(71.1) | 1917(72.6) | χ2 = 1.20, P = 0.274 |
   No | 539(28.9) | 724(27.4) |  |
Household income | Â | Â | Â |
   Low | 208(11.4) | 286(11.0) | χ2 = 0.15, P = 0.929 |
   Medium | 1487(81.5) | 2121(81.9) |  |
   High | 130(7.1) | 183(7.1) |  |
Having rural cooperative medical insurance | Â | Â | Â |
   Yes | 1733(96.2) | 2486(96.5) | χ2 = 0.42, P = 0.515 |
   No | 69(3.8) | 89(3.5) |  |
Regular leisure physical activity | Â | Â | Â |
   Yes | 42(2.4) | 53(2.1) | χ2 = 0.26, P = 0.607 |
   No | 1734(97.6) | 2436(97.9) |  |
Alcohol drinking | Â | Â | Â |
   Yes | 853(45.7) | 95(3.6) | χ2 = 1168.47, P < 0.001 |
   No | 1012(54.3) | 2546(96.4) |  |
Smoking | Â | Â | Â |
   Yes | 1183(63.5) | 53(2.0) | χ2 = 2066.52, P < 0.001 |
   No | 680(36.5) | 2576(98.0) |  |
Body mass index (kg/m2) | Â | Â | Â |
   < 25.0 | 1528(83.0) | 2209(84.6) | χ2 = 2.70, P = 0.225 |
   25.0- | 291(15.8) | 368(14.1) |  |
   ≥ 30.0 | 21(1.1) | 34(1.3) |  |