| Age, mean(SD) |
62.2(29.3) |
62.9(29.8) |
61.7(29.0) |
0.200 |
| Weight, kg, mean (SD) |
61.6(16.8) |
66.0(17.0) |
58.9(16.1) |
<0.001 |
| BMI, kg/m2, mean (SD) |
25.1(8.0) |
24.7(7.1) |
25.3(8.6) |
0.010 |
| Never smoking(%) |
2981(74.6) |
624(40.6) |
2357(95.8) |
<0.001 |
| Never drinking(%) |
3188(80.0) |
850(55.7) |
2338(95.2) |
<0.001 |
| Education lever lower than high school(%) |
3178(79.6) |
1030(66.8) |
2148(87.5) |
<0.001 |
| Income less than 2000 yuan(%) |
3174(80.3) |
1117(73.8) |
2057(84.4) |
<0.001 |
| systolic pressure, mmHg, mean (SD) |
150.9(18.7) |
150.7(18.3) |
151(18.9) |
0.590 |
| Diastolic pressure/mmHg, mean (SD) |
88.6(25.9) |
89.3(18.2) |
88.1(29.8) |
0.110 |
| Heart rate/min, mean (SD) |
82.1(29.7) |
81.8(32.6) |
82.24(27.7) |
0.680 |
| TC, mmol/L, mean (SD) |
4.7(0.9) |
4.6(0.9) |
4.8(0.9) |
<0.001 |
| HDL-C, mmol/L, mean (SD) |
1.4(0.3) |
1.3(0.3) |
1.4(0.3) |
<0.001 |
| LDL-C, mmol/L, mean (SD) |
2.6(0.8) |
2.5(0.8) |
2.6(0.8) |
<0.001 |
| TG, mmol/L, mean (SD) |
1.8(1.4) |
1.8(1.4) |
1.8(1.4) |
0.180 |
| FPG, mmol/l, mean (SD) |
6.0(2.1) |
5.9(1.9) |
6.0(2.3) |
0.010 |
| 2hPG, mmol/L, mean (SD) |
8.8(4.0) |
8.5(3.8) |
9.0(4.2) |
<0.001 |
| uric acid, mmol/L, mean (SD) |
310.5(90.0) |
359.2(90.9) |
280.4(74.2) |
<0.001 |
| Family history of diabetes % |
344(8.6) |
135(8.7) |
209(8.5) |
0.765 |
| waist circumference, cm, mean (SD) |
85.5(16.2) |
87.6(25.2) |
84.2(10.0) |
0.001 |
