Table 1. Distribution of socio-demographic characteristics and risk factors for four chronic diseases.
| Variables | Hypertension (N = 2449) | Diabetes mellitus (N = 749) | COPD (N = 95) |
Stroke (N = 175) |
||||
|---|---|---|---|---|---|---|---|---|
| Sample N* | Prevalence% (95%CI)# |
Sample N | Prevalence% (95%CI) |
Sample N | Prevalence% (95%CI) |
Sample N | Prevalence% (95%CI) |
|
| Gender | ||||||||
| Male | 1226 | 26.0(24.7, 27.3) | 368 | 7.8(7.0, 8.6) | 73 | 1.6(1.2, 2.0) | 106 | 2.3(1.9, 2.7) |
| Female | 1223 | 26.1(24.8, 27.4) | 381 | 8.2(7.4, 9.0) | 22 | 0.5(0.3, 0.7) | 69 | 1.5(1.1, 1.9) |
| Total | 2449 | 26.0(25.1, 26.9) | 749 | 8.0(7.4, 8.5) | 95 | 1.0(0.8, 1.2) | 175 | 1.9(1.6, 2.2) |
| Age group (years) | ||||||||
| 60–69 | 1052 | 20.5(19.4, 21.6) | 363 | 7.1(6.4, 7.8) | 39 | 0.8(0.5, 1.1) | 68 | 1.3(1.0, 1.6) |
| 70–79 | 917 | 31.9(30.2, 33.6) | 285 | 10.0(8.9, 11.1) | 28 | 1.0(0.6, 1.4) | 66 | 2.3(1.8, 2.8) |
| ≥80 | 480 | 34.1(31.6, 36.6) | 101 | 7.2(5.8, 8.6) | 28 | 2.0(1.3, 2.7) | 41 | 2.9(2.0, 3.8) |
| Residence | ||||||||
| Urban | 1620 | 31.2(29.9, 32.5) | 570 | 11.0(10.1, 11.9) | 33 | 0.6(0.4, 0.8) | 77 | 1.5(1.2, 1.8) |
| Rural | 829 | 19.7(18.5, 20.9) | 179 | 4.3(3.7, 4.9) | 62 | 1.5(1.1, 1.9) | 98 | 2.3(1.8, 2.8) |
| Region | ||||||||
| West | 476 | 23.1(21.3, 24.9) | 112 | 5.4(4.4, 6.4) | 40 | 1.9(1.3, 2.5) | 78 | 3.8(3.0, 4.6) |
| Central | 617 | 25.2(23.5, 26.9) | 177 | 7.2(6.2, 8.2) | 14 | 0.6(0.3, 0.9) | 30 | 1.2(0.8, 1.6) |
| Mid-south | 533 | 24.3(22.5, 26.1) | 155 | 7.1(6.0, 8.2) | 24 | 1.1(0.7, 1.5) | 29 | 1.3(0.8, 1.8) |
| Northeast | 823 | 30.4(28.7, 32.1) | 305 | 11.3(10.1, 12.5) | 17 | 0.6(0.3, 0.9) | 38 | 1.4(1.0, 1.8) |
| Monthly household income (RMB) | ||||||||
| ≤1500 | 572 | 21.7(20.2, 23.3) | 152 | 5.8(4.9, 6.7) | 35 | 1.3(0.9, 1.8) | 56 | 2.1(1.6, 2.7) |
| 1501–6000 | 1230 | 26.0(24.7, 27.2) | 363 | 7.7(6.9, 8.5) | 50 | 1.1(0.8, 1.4) | 86 | 1.8(1.4, 2.2) |
| ≥6001 | 647 | 31.7(29.7, 33.7) | 234 | 11.5(10.1, 12.9) | 10 | 0.5(0.2, 0.8) | 33 | 1.6(1.1, 2.2) |
| Education | ||||||||
| Primary school or below | 1097 | 25.1(23.8, 26.4) | 270 | 6.2(5.5, 6.9) | 49 | 1.1(0.8, 1.4) | 97 | 2.2(1.7, 2.3) |
| High school | 1013 | 26.1(24.7, 27.5) | 339 | 8.8(7.9, 9.7) | 40 | 1.0(0.7, 1.4) | 57 | 1.5(1.0, 2.2) |
| Technical school or above | 339 | 29.4(26.7, 32.0) | 140 | 12.1(10.3, 14.0) | 6 | 0.5(0.1, 0.9) | 21 | 1.8(0.7, 2.7) |
| Occupation | ||||||||
| Intellectual worker | 149 | 27.6(25.0, 32.8) | 60 | 11.1(8.7, 14.1) | 6 | 1.1(0.2, 2.0) | 14 | 2.6(1.8, 2.7) |
| Manual worker | 823 | 19.6(18.2, 20.6) | 182 | 4.3(3.7, 4.9) | 53 | 1.3(0.1, 1.6) | 76 | 1.8(1.1, 1.9) |
| Retiree | 1477 | 31.5(30.4, 33.0) | 507 | 10.8(10.0, 11.8) | 36 | 0.8(0.5, 1.1) | 85 | 1.8(1.0, 2.6) |
| Smoking status | ||||||||
| Never | 2022 | 26.3(25.3, 27.3) | 639 | 8.3(7.7, 8.9) | 57 | 0.7(0.5, 0.9) | 124 | 1.6(1.3, 1.9) |
| Past smoker | 280 | 21.2(19.0, 23.4) | 65 | 5.0(3.8, 6.2) | 15 | 1.1(0.5, 1.7) | 31 | 2.4(1.6, 3.2) |
| Current smoker | 147 | 38.0(33.1, 42.8) | 45 | 11.7(8.5, 14.9) | 23 | 5.9(3.5, 8.2) | 20 | 5.2(3.0, 7.4) |
| Alcohol intake | ||||||||
| No | 2159 | 26.6(25.6, 27.6) | 670 | 8.3(7.7, 8.9) | 83 | 1.0(0.8, 1.2) | 162 | 2.0(1.7, 2.3) |
| Yes | 290 | 22.6(20.3, 24.9) | 79 | 6.2(4.9, 7.5) | 12 | 0.9(0.4, 1.5) | 13 | 1.0(0.5, 1.6) |
| BMI (kg/m2) | ||||||||
| <24 | 922 | 25.7(24.4, 27.2) | 285 | 8.0(7.2, 9.0) | 38 | 1.1(0.8, 1.4) | 61 | 1.7(1.3, 2.1) |
| 24≤BMI<28 | 375 | 38.1(34.9, 41.0) | 140 | 14.2(12.1, 16.5) | 4 | 0.4(0.0, 0.8) | 15 | 1.5(0.7, 2.3) |
| ≥28 | 96 | 37.8(32.0, 44.0) | 38 | 15.0(12.0, 22.9) | 5 | 2.0(0.3, 4.9) | 12 | 4.7(2.4, 9.1) |
| Subtotal | 1393 | 28.9(27.8, 30.4) | 463 | 9.6(8.9, 10.7) | 47 | 1.0(0.7, 1.3) | 88 | 1.8(1.5, 2.3) |
*Absolute numbers in the actual study sample.
#Respective row percentages and 95% confidence intervals.