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Table 1 Demographic Characteristics of study population [n(%)]

From: Urban–rural disparities in hypertension prevalence, awareness, treatment, and control among Chinese middle-aged and older adults from 2011 to 2015: a repeated cross-sectional study

Variables

2011 wave

2015 wave

Total (n = 11,129)

Urban (n = 2103)

Rural (n = 9026)

Total (n = 8916)

Urban (n = 1591)

Rural (n = 7325)

Sex

 Male

5359 (48.2%)

1107 (52.6%)

4252 (47.1%)

4200 (47.1%)

844 (53.0%)

3356 (45.8%)

 Female

5770 (51.8%)

996 (47.4%)

4774 (52.9%)

4716 (52.9%)

747 (47.0%)

3969 (54.2%)

Age group

 45–54

3953 (35.52%)

654 (31.10%)

3299 (36.55%)

2181 (24.46%)

354 (22.25%)

1827 (24.94%)

 55–64

4253 (38.22%)

799 (37.99%)

3454 (38.27%)

3504 (39.30%)

595 (37.40%)

2909 (39.71%)

 65–74

2100 (18.87%)

456 (21.68%)

1644 (18.21%)

2328 (26.11%)

453 (28.47%)

1875 (25.60%)

 75 + 

823 (7.40%)

194 (9.22%)

629 (6.97%)

903 (10.13%)

189 (11.88%)

714 (9.75%)

Region

 Eastern

3626 (32.6%)

633 (30.1%)

2993 (33.2%)

2965 (33.3%)

452 (28.4%)

2513 (34.3%)

 Central

3886 (34.9%)

873 (41.5%)

3013 (33.4%)

3008 (33.7%)

645 (40.5%)

2363 (32.3%)

 Western

3617 (32.5%)

597 (28.4%)

3020 (33.5%)

2943 (33.0%)

494 (31.0%)

2449 (33.4%)

Marital status

 Married

9748 (87.6%)

1844 (87.7%)

7904 (87.6%)

7716 (86.5%)

1399 (87.9%)

6317 (86.2%)

 Not partnered

1381 (12.4%)

259 (12.3%)

1122 (12.4%)

1200 (13.5%)

192 (12.1%)

1008 (13.8%)

Education

 Illiterate

3117 (28.0%)

210 (10.0%)

2907 (32.2%)

2442 (27.4%)

149 (9.4%)

2293 (31.3%)

 Primary and below

4522 (40.6%)

616 (29.3%)

3906 (43.3%)

3672 (41.2%)

479 (30.1%)

3193 (43.6%)

 Secondary and above

3490 (31.4%)

1277 (60.7%)

2213 (24.5%)

2802 (31.4%)

963 (60.5%)

1839 (25.1%)

Household consumption per capita

 Quintile 1 (poorest)

2217 (19.9%)

147 (7.0%)

2070 (22.9%)

1748 (19.6%)

138 (8.7%)

1610 (22.0%)

 Quintile 2

2231 (20.0%)

234 (11.1%)

1997 (22.1%)

1794 (20.1%)

181 (11.4%)

1613 (22.0%)

 Quintile 3

2225 (20.0%)

334 (15.9%)

1891 (21.0%)

1794 (20.1%)

247 (15.5%)

1547 (21.1%)

 Quintile 4

2241 (20.1%)

531 (25.2%)

1710 (18.9%)

1778 (19.9%)

371 (23.3%)

1407 (19.2%)

 Quintile 5 (richest)

2215 (19.9%)

857 (40.8%)

1358 (15.0%)

1802 (20.2%)

654 (41.1%)

1148 (15.7%)

Smoke status

 Never

6642 (59.7%)

1281 (60.9%)

5361 (59.4%)

4956 (55.6%)

868 (54.6%)

4088 (55.8%)

 Quit

1047 (9.4%)

243 (11.6%)

804 (8.9%)

1492 (16.7%)

305 (19.2%)

1187 (16.2%)

 Current

3440 (30.9%)

579 (27.5%)

2861 (31.7%)

2468 (27.7%)

418 (26.3%)

2050 (28.0%)

Drink status

 Never

6528 (58.7%)

1220 (58.0%)

5308 (58.8%)

4878 (54.7%)

807 (50.7%)

4071 (55.6%)

 Quit

933 (8.4%)

203 (9.7%)

730 (8.1%)

1029 (11.5%)

189 (11.9%)

840 (11.5%)

 Current

3668 (33.0%)

680 (32.3%)

2988 (33.1%)

3009 (33.7%)

595 (37.4%)

2414 (33.0%)

Body mass index groups

  < 24

6652 (59.8%)

1005 (47.8%)

5647 (62.6%)

4920 (55.2%)

725 (45.6%)

4195 (57.3%)

 24–28

3234 (29.1%)

785 (37.3%)

2449 (27.1%)

2881 (32.3%)

618 (38.8%)

2263 (30.9%)

  >  = 28

1243 (11.2%)

313 (14.9%)

930 (10.3%)

1115 (12.5%)

248 (15.6%)

867 (11.8%)