Table 1 Characteristics of the cohort study participants at baseline
| Â | All | ND | DES | Depression |
|---|---|---|---|---|
N = 11,050(%) | N = 8019(%) | N = 1750(%) | N = 1281(%) | |
Age(years) | ||||
 45–50 | 3126(28.3) | 2299(28.7) | 497(28.4) | 330(25.8) |
 51–60 | 4101(37.1) | 2973(37.1) | 644(36.8) | 484(37.8) |
  > 60 | 3823(34.6) | 2747(34.2) | 609(34.8) | 467(36.4) |
Male | 5362(48.5) | 4248(53.0) | 701(40.0) | 413(32.2) |
Residence | ||||
 Urban | 10,069(91.1) | 7320(91.3) | 1597(91.3) | 1152(89.9) |
 Rural | 981(8.9) | 699(8.7) | 153(8.7) | 129(10.1) |
Marital status | ||||
 Married | 9993(90.4) | 6775(84.5) | 1457(83.3) | 986(77.0) |
 Others | 1057(9.6) | 1244(15.5) | 293(16.7) | 295(23.0) |
Educational level | ||||
 Primary school or below | 9409(85.1) | 6730(83.9) | 1522(87.0) | 1157(90.3) |
 Middle school | 916(8.3) | 691(8.6) | 138(7.9) | 87(6.8) |
 High school or above | 725(6.5) | 598(7.5) | 90(5.1) | 37(2.9) |
History of smoking | 1146(10.4) | 868(10.8) | 175(10.0) | 103(8.0) |
History of drinking | 3936(35.6) | 3018(37.6) | 572(32.7) | 346(27.0) |
Dyslipidaemia | 591(5.3) | 413(5.2) | 101(5.8) | 77(6.0) |
Diabetes | 359(3.2) | 241(3.0) | 64(3.7) | 54(4.2) |
Nephropathy | 605(5.5) | 362(4.5) | 121(6.9) | 122(9.5) |
BMI (kg/m2) | ||||
 Normal weight/underweight | 6425(58.1) | 4710(58.8) | 1007(57.5) | 708(55.3) |
 Overweight | 3957(35.8) | 2838(35.4) | 629(36.0) | 490(38.2) |
 Obesity | 668(6.0) | 471(5.8) | 114(6.5) | 83(6.5) |