表 1. The baseline characteristics of the respondents.
调查对象基本情况
| Characteristic | Total
(n=2 898)/ case (%) |
Male
(n=1 684)/ case (%) |
Female
(n=1 214)/ case (%) |
P |
| BADL: Basic Activities of Daily Living; IADL: Instrumental Activities of Daily Living. | ||||
| Sleep duration | <0.001 | |||
| Normal | 1620 (55.9) | 958 (56.9) | 662 (54.5) | |
| Short | 555 (19.2) | 265 (15.7) | 290 (23.9) | |
| Long | 723 (24.9) | 461 (27.4) | 262 (21.6) | |
| Age/yr. | 0.033 | |||
| 60-74 | 2589 (89.3) | 1487 (88.3) | 1102 (90.8) | |
| ≥75 | 309 (10.7) | 197 (11.7) | 112 (9.2) | |
| Marital status | <0.001 | |||
| Married | 2462 (85.0) | 1500 (89.1) | 962 (79.2) | |
| Unmarried | 436 (15.0) | 184 (10.9) | 252 (20.8) | |
| Central obesity | <0.001 | |||
| No | 1094 (37.9) | 807 (48.1) | 287 (23.7) | |
| Yes | 1794 (62.1) | 871 (51.9) | 923 (76.3) | |
| Household registration | 0.017 | |||
| Urban | 619 (21.4) | 334 (19.9) | 285 (23.5) | |
| Rural | 2274 (78.6) | 1348 (80.1) | 926 (76.5) | |
| Education | <0.001 | |||
| Illiterate | 137 (4.7) | 90 (5.3) | 47 (3.9) | |
| Primary school | 1 978 (68.3) | 1008 (59.9) | 970 (79.9) | |
| Secondary school
and above |
783 (27.0)
|
586 (34.8)
|
197 (16.2)
|
|
| Economic status | 0.873 | |||
| <P 20 | 563 (19.6) | 328 (19.6) | 235 (19.6) | |
| P20- | 576 (20.0) | 325 (19.4) | 251 (20.9) | |
| P40- | 579 (20.1) | 337 (20.1) | 242 (20.2) | |
| P60- | 578 (20.1) | 343 (20.5) | 235 (19.6) | |
| P80-P100 | 579 (20.1) | 342 (20.4) | 237 (19.8) | |
| Chronic disease | 0.082 | |||
| No | 879 (30.3) | 532 (31.6) | 347 (28.6) | |
| Yes | 2 019 (69.7) | 1152 (68.4) | 867 (71.4) | |
| BADL | 0.058 | |||
| No | 2 794 (96.5) | 1633 (97.0) | 1161 (95.7) | |
| Yes | 102 (3.5) | 50 (3.0) | 52 (4.3) | |
| IADL | <0.001 | |||
| No | 2503 (86.4) | 1519 (90.2) | 984 (81.1) | |
| Yes | 395 (13.6) | 165 (9.8) | 230 (18.9) | |
| Tobacco smoking | <0.001 | |||
| Never | 1484 (51.2) | 391 (23.2) | 1093 (90.0) | |
| Current | 894 (30.9) | 812 (48.2) | 82 (6.8) | |
| Former | 519 (17.9) | 480 (28.5) | 39 (3.2) | |
| Alcohol drinking | <0.001 | |||
| Never | 1 780 (61.5) | 737 (43.8) | 1 043 (85.9) | |
| Current | 889 (30.7) | 780 (46.4) | 109 (9.0) | |
| Former | 227 (7.8) | 165 (9.8) | 62 (5.1) | |
| Participation in
social activities |
0.946 | |||
| No | 1 349 (46.5) | 783 (46.5) | 566 (46.6) | |
| Yes | 1 549 (53.5) | 901 (53.5) | 648 (53.4) | |