TABLE 1.
Sociodemographic characteristics description.
| Variables | Num (feq.%) |
| Demographic backgrounds | |
| Age (years old) | |
| 20–44 (young) | 908 (5.50) |
| 45–59 (middle-aged) | 8,419 (50.99) |
| 60–74 (young, older man) | 6,219 (37.66) |
| 75–89 (the aged) | 949 (5.75) |
| 90–110 (longevity) | 17 (0.10) |
| Gender | |
| Male | 8,024 (48.59) |
| Female | 8,488 (51.41) |
| Type of residential address | |
| Family housing | 16,261 (98.48) |
| Other | 251 (1.52) |
| Location of residential address | |
| Main city zone | 2,408 (14.58) |
| Combination-zone (urban-rural) | 830 (5.03) |
| Town/city-center | 925 (5.60) |
| ZhenXiang area | 756 (4.58) |
| Village | 11,593 (70.21) |
| Born address | |
| Permanent address | 7,709 (46.69) |
| Separate village/neighborhood within permanent address county/city/district | 5,743 (34.78) |
| Other county/city/district | 3,060 (18.53) |
| Marital status | |
| Married with spouse present/Cohabitated | 13,805 (83.61) |
| Married though temporarily apart due to employment | 992 (6.01) |
| Separated/divorced | 195 (1.18) |
| Widowed | 1,416 (8.58) |
| Never married | 104 (0.63) |
| Health status and functioning | |
| State of health | |
| Very good | 2,122 (12.85) |
| Good | 2,023 (12.25) |
| Fair | 8,453 (51.19) |
| Poor | 3,461 (20.96) |
| Very poor | 453 (2.74) |
| Changes in health status following last interview | |
| Better | 1,571 (9.51) |
| About the same | 8,188 (49.59) |
| Worse | 6,753 (40.90) |
| Physical disabilities | |
| No | 14,734 (89.23) |
| Yes | 1,778 (10.77) |
| The loss of teeth | |
| Yes | 663 (4.02) |
| No | 15,849 (95.98) |
| Chronic pain | |
| Yes | 4,703 (28.48) |
| No | 11,809 (71.52) |
| Other medical diseases or conditions | |
| Yes | 1,259 (7.62) |
| No | 15,253 (92.38) |
| Childhood health status | |
| Excellent | 1,985 (12.02) |
| Very good | 6,738 (40.81) |
| Good | 3,123 (18.91) |
| Fair | 3,656 (22.14) |
| Poor | 1,010 (6.12) |
| ADL | |
| No functional impairments (NFI group) | 9,678 (58.61) |
| Mild functional impairments (MFI group) | 5,459 (33.06) |
| Functional impairments (FI group) | 1,375 (8.33) |
| Lifestyle and health behaviors | |
| Sporting activities | |
| Yes | 8,194 (49.62) |
| No | 8,318 (50.38) |
| Social activity | |
| Yes | 7,123 (43.14) |
| No | 9,389 (56.86) |
| Smoking | |
| No | 9,926 (60.11) |
| Yes | 6,586 (39.89) |
| Frequency of drinking | |
| Drink more than once a month | 4,599 (27.85) |
| Drink but less than once a month | 1,499 (9.08) |
| Do not drink | 10,414 (63.07) |
| Depression | |
| No depressive symptoms (NDS group) | 2,217 (13.43) |
| Depressive symptoms (DS group) | 8,152 (49.37) |
| Depressive (D group) | 6,143 (37.20) |
Num, number; freq, frequency.