Table 2.
Health insurance coverage and city of residence by dental visits (weighted).
| Variables | Total | Frequency of Dental Visits n (%) | p-Value | |||||
|---|---|---|---|---|---|---|---|---|
| Never | Rarely | Less Than Once Every Two Years | At Least Once Every Two Years | At Least Once a Year | Twice a Year | |||
| Total | N = 4835 | 1443 (29.84%) | 1601 (33.11%) | 239 (4.94%) | 379 (7.83%) | 891 (18.43%) | 283 (5.85%) | |
| Health insurance coverage | ||||||||
| No health insurance | 465 (9.61%) | 190 (40.78%) | 155 (33.38%) | 25 (5.43%) | 27 (5.73%) | 48 (10.28%) | 20 (4.39%) | <0.001 |
| New Cooperative Medical Scheme | 538 (11.12%) | 260 (48.25%) | 166 (30.92%) | 17 (3.23%) | 32 (5.96%) | 45 (8.34%) | 18 (3.29%) | |
| Urban Resident Basic Medical Insurance | 1166 (24.11%) | 333 (28.61%) | 429 (36.80%) | 57 (4.93%) | 79 (6.79%) | 203 (17.40%) | 64 (5.48%) | |
| Urban Employee Basic Medical Insurance | 2213 (45.77%) | 557 (25.19%) | 665 (30.03%) | 118 (5.34%) | 202 (9.14%) | 513 (23.19%) | 157 (7.10%) | |
| Government medical insurance | 131 (2.71%) | 38 (28.68%) | 56 (40.64%) | 6 (4.41%) | 6 (4.22%) | 16 (12.19%) | 10 (7.85%) | |
| Other medical insurance | 323 (6.67%) | 66 (20.22%) | 130 (40.26%) | 15 (4.62%) | 33 (10.20%) | 66 (20.53%) | 13 (4.16%) | |
| City of residence | ||||||||
| Beijing | 629 (13.01%) | 125 (19.88%) | 215 (34.16%) | 18 (2.90%) | 47 (7.45%) | 171 (27.12%) | 53 (8.49%) | <0.001 |
| Changsha | 236 (4.87%) | 106 (45.12%) | 51 (21.75%) | 11 (4.88%) | 11 (4.67%) | 41 (17.28%) | 15 (6.30%) | |
| Chengdu | 479 (9.91%) | 151 (31.55%) | 152 (31.75%) | 30 (6.19%) | 25 (5.15%) | 97 (20.21%) | 25 (5.15%) | |
| Guangzhou | 422 (8.73%) | 117 (27.63%) | 143 (33.77%) | 20 (4.82%) | 29 (6.80%) | 75 (17.76%) | 39 (9.21%) | |
| Hangzhou | 284 (5.87%) | 74 (26.10%) | 84 (29.65%) | 9 (3.34%) | 24 (8.56%) | 60 (21.09%) | 32 (11.27%) | |
| Shanghai | 712 (14.73%) | 182 (25.51%) | 273 (38.27%) | 53 (7.41%) | 57 (8.02%) | 114 (16.05%) | 34 (4.73%) | |
| Shenzhen | 389 (8.05%) | 35 (8.91%) | 46 (11.94%) | 44 (11.34%) | 124 (31.78%) | 130 (33.40%) | 10 (2.63%) | |
| Tianjin | 451 (9.32%) | 107 (23.64%) | 226 (50.21%) | 8 (1.88%) | 10 (2.30%) | 72 (15.90%) | 27 (6.07%) | |
| Wuhan | 325 (6.73%) | 104 (31.98%) | 115 (35.22%) | 18 (5.67%) | 14 (4.45%) | 52 (15.99%) | 22 (6.68%) | |
| Chongqing | 907 (18.77%) | 443 (48.77%) | 296 (32.58%) | 26 (2.87%) | 37 (4.10%) | 80 (8.81%) | 26 (2.87%) | |
Notes: n = number; comparisons between groups were done using the Chi-square test.