Table 1 Baseline clinical profiles of participants attending the 2015 CHARLS survey.
Clinical characteristics | Total participants | Q1 | Q2 | Q3 | Q4 | P |
|---|---|---|---|---|---|---|
N = 11,196 | N = 2798 | N = 2802 | N = 2797 | N = 2799 | ||
Age, (median [IQR]) | 60.00 [52.00, 67.00] | 60.00 [52.00, 67.00] | 60.00 [52.00, 67.00] | 60.00 [52.00, 67.00] | 60.00 [52.00, 66.00] | 0.024 |
Gender (%) | < 0.001 | |||||
Male | 5135 (45.9) | 1525 (54.5) | 1252 (44.7) | 1181 (42.2) | 1177 (42.1) | |
Female | 6059 (54.1) | 1273 (45.5) | 1550 (55.3) | 1615 (57.8) | 1621 (57.9) | |
Marital status (%) | 0.069 | |||||
With spouse present | 9312 (83.2) | 2320 (82.9) | 2292 (81.8) | 2339 (83.6) | 2361 (84.4) | |
Others | 1884 (16.8) | 478 (17.1) | 510 (18.2) | 458 (16.4) | 438 (15.6) | |
Settlements (%) | < 0.001 | |||||
Rural area | 2633 (23.9) | 510 (18.5) | 568 (20.6) | 695 (25.2) | 860 (31.2) | |
Suburb area | 8395 (76.1) | 2242 (81.5) | 2191 (79.4) | 2062 (74.8) | 1900 (68.8) | |
Body mass index | < 0.001 | |||||
< 28 kg/m2 | 9533 (86.4) | 2616 (94.4) | 2500 (90.3) | 2318 (84.6) | 2099 (76.3) | |
≥ 28 kg/m2 | 1499 (13.6) | 155 (5.6) | 268 (9.7) | 423 (15.4) | 653 (23.7) | |
Cigarette consumption (%) | < 0.001 | |||||
Current-smoker | 8129 (72.6) | 1898 (67.8) | 2003 (71.5) | 2120 (75.8) | 2108 (75.3) | |
Non-smoker | 3067 (27.4) | 900 (32.2) | 799 (28.5) | 677 (24.2) | 691 (24.7) | |
Alcohol consumption (%) | < 0.001 | |||||
More than once a month | 8238 (73.7) | 1929 (69.0) | 2085 (74.5) | 2111 (75.6) | 2113 (75.6) | |
Less than once a month | 2944 (26.3) | 865 (31.0) | 714 (25.5) | 682 (24.4) | 683 (24.4) | |
Nap (%) | < 0.001 | |||||
No | 4577 (41.8) | 1233 (45.3) | 1226 (44.6) | 1088 (39.6) | 1030 (37.6) | |
Yes | 6382 (58.2) | 1491 (54.7) | 1522 (55.4) | 1658 (60.4) | 1711 (62.4) | |
Sleep duration (%) | 0.015 | |||||
< 6 h | 5477 (50.4) | 1351 (50.0) | 1396 (51.2) | 1435 (52.8) | 1295 (47.5) | |
6–8 h | 4327 (39.8) | 1080 (40.0) | 1072 (39.3) | 1022 (37.6) | 1153 (42.3) | |
> 8 h | 1070 (9.8) | 272 (10.1) | 258 (9.5) | 263 (9.7) | 277 (10.2) | |
Blood urea nitrogen (%) | < 0.001 | |||||
< 20 mg/dL | 9574 (85.5) | 2321 (83.0) | 2362 (84.3) | 2442 (87.3) | 2449 (87.5) | |
≥ 20 mg/dL | 1622 (14.5) | 477 (17.0) | 440 (15.7) | 355 (12.7) | 350 (12.5) | |
Low density lipoprotein (%) | < 0.001 | |||||
< 120 mg/dL | 8439 (75.4) | 2369 (84.7) | 2074 (74.0) | 1915 (68.5) | 2081 (74.3) | |
≥ 120 mg/dL | 2756 (24.6) | 429 (15.3) | 728 (26.0) | 881 (31.5) | 718 (25.7) | |
Hyperuricemia (%) | < 0.001 | |||||
No | 9915 (88.6) | 2644 (94.5) | 2550 (91.0) | 2451 (87.7) | 2270 (81.1) | |
Yes | 1279 (11.4) | 154 (5.5) | 252 (9.0) | 345 (12.3) | 528 (18.9) | |
Depression (%) | 0.638 | |||||
No | 6844 (67.1) | 1692 (66.4) | 1709 (66.7) | 1724 (67.9) | 1719 (67.5) | |
Yes | 3352 (32.9) | 857 (33.6) | 853 (33.3) | 816 (32.1) | 826 (32.5) | |
Arthritis (%) | 0.373 | |||||
No | 7382 (65.9) | 1837 (65.7) | 1851 (66.1) | 1877 (67.1) | 1817 (64.9) | |
Yes | 3814 (34.1) | 961 (34.3) | 951 (33.9) | 920 (32.9) | 982 (35.1) | |
Digestive diseases (%) | 0.184 | |||||
No | 8563 (76.5) | 2113 (75.5) | 2121 (75.7) | 2167 (77.5) | 2162 (77.2) | |
Yes | 2633 (23.5) | 685 (24.5) | 681 (24.3) | 630 (22.5) | 637 (22.8) | |
Renal diseases (%) | 0.026 | |||||
No | 10,509 (93.9) | 2595 (92.7) | 2639 (94.2) | 2646 (94.6) | 2629 (93.9) | |
Yes | 687 (6.1) | 203 (7.3) | 163 (5.8) | 151 (5.4) | 170 (6.1) | |
Hepatic diseases (%) | 0.033 | |||||
No | 10,747 (96.0) | 2663 (95.2) | 2710 (96.7) | 2688 (96.1) | 2686 (96.0) | |
Yes | 449 (4.0) | 135 (4.8) | 92 (3.3) | 109 (3.9) | 113 (4.0) | |
Heart diseases (%) | 0.001 | |||||
No | 10,515 (93.9) | 2648 (94.6) | 2661 (95.0) | 2593 (92.7) | 2613 (93.4) | |
Yes | 681 (6.1) | 150 (5.4) | 141 (5.0) | 204 (7.3) | 186 (6.6) | |
Diabetes (%) | < 0.001 | |||||
No | 9613 (85.9) | 2706 (96.7) | 2615 (93.3) | 2403 (85.9) | 1889 (67.5) | |
Yes | 1583 (14.1) | 92 (3.3) | 187 (6.7) | 394 (14.1) | 910 (32.5) | |
Hypertension (%) | < 0.001 | |||||
No | 7916 (72.2) | 2133 (77.3) | 2048 (74.7) | 1897 (69.7) | 1838 (67.2) | |
Yes | 3042 (27.8) | 625 (22.7) | 695 (25.3) | 826 (30.3) | 896 (32.8) | |
Total cholesterol (%) | < 0.001 | |||||
No | 7935 (70.9) | 2372 (84.8) | 2095 (74.8) | 1866 (66.7) | 1602 (57.2) | |
Yes | 3261 (29.1) | 426 (15.2) | 707 (25.2) | 931 (33.3) | 1197 (42.8) | |
