Table 1.
Sample characteristics (n = 4835, unweighted and weighted).
| Variables | Unweighted Sample | Weighted Sample | ||
|---|---|---|---|---|
| n (%) | M (SD) | n (%) | M (SD) | |
| Individual-level characteristics | ||||
| Gender | ||||
| Male | 2206 (45.63%) | 2217 (45.85%) | ||
| Female | 2629 (54.37%) | 2618 (54.15%) | ||
| Age | ||||
| (18–25) | 530 (10.96%) | 514 (10.62%) | ||
| (26–30) | 507 (10.49%) | 495 (10.24%) | ||
| (31–35) | 558 (11.54%) | 543 (11.23%) | ||
| (36–40) | 510 (10.55%) | 488 (10.10%) | ||
| (41–45) | 476 (9.84%) | 474 (9.80%) | ||
| (46–50) | 530 (10.96%) | 555 (11.48%) | ||
| (51–55) | 440 (9.10%) | 454 (9.39%) | ||
| (56–60) | 493 (10.20%) | 507 (10.48%) | ||
| (61–65) | 791 (16.36%) | 805 (16.65%) | ||
| Marital status | ||||
| Married or living with partner | 3657 (75.64%) | 3677 (76.05%) | ||
| Otherwise | 1178 (24.36%) | 1158 (23.95%) | ||
| Education years | 12.56 (3.78) | 12.41 (3.81) | ||
| Income | ||||
| I | 1267 (26.20%) | 1274 (26.34%) | ||
| II | 1347 (27.86%) | 1392 (28.78%) | ||
| III | 1266 (26.18%) | 1273 (26.33%) | ||
| IV | 955 (19.75%) | 897 (18.54%) | ||
| Self-rated health (SRMHS scores) | 61.77 (12.87) | 61.69 (12.81) | ||
| Regular physical exam | ||||
| Yes | 2962 (61.26%) | 2891 (59.79%) | ||
| No | 1873 (38.74%) | 1944 (40.21%) | ||
| Care about healthy food | ||||
| Yes | 2822 (58.37%) | 2739 (56.65%) | ||
| No | 2013 (41.63%) | 2096 (43.35%) | ||
| Self-rated oral health | ||||
| Very poor | 147 (3.04%) | 140 (2.90%) | ||
| Poor | 908 (18.78%) | 910 (18.82%) | ||
| Fair | 1223 (25.29%) | 1173 (24.25%) | ||
| Good | 2045 (42.30%) | 2056 (42.52%) | ||
| Very good | 512 (10.59%) | 556 (11.50%) | ||
| Tooth loss | 1.38 (2.82) | 1.36 (2.83) | ||
| Gum bleeding | ||||
| Never | 978 (20.23%) | 969 (20.03%) | ||
| Hardly | 1445 (29.89%) | 1465 (30.31%) | ||
| Occasionally | 1953 (40.39%) | 1955 (40.44%) | ||
| Frequently | 399 (8.25%) | 390 (8.07%) | ||
| Always | 60 (1.24%) | 56 (1.15%) | ||
| Health insurance coverage | ||||
| No health insurance | 472 (9.76%) | 465 (9.61%) | ||
| New Cooperative Medical Scheme | 514 (10.63%) | 538 (11.12%) | ||
| Urban Resident Basic Medical Insurance | 1155 (23.89%) | 1166 (24.11%) | ||
| Urban Employee Basic Medical Insurance | 2263 (46.80%) | 2213 (45.77%) | ||
| Government medical insurance | 133 (2.75%) | 131 (2.71%) | ||
| Other medical insurance | 298 (6.16%) | 323 (6.67%) | ||
| City-level characteristics | ||||
| GDP per capita (10,000 RMB) | 12.93 (3.35) | 12.24 (3.55) | ||
Notes: n = number; M = mean; SD = standard deviation; GDP = gross domestic product.