Number of remaining teeth according to general characteristics Uni: N (%)
| Characteristics | Remaining teeth | χ2 ( |
||
|---|---|---|---|---|
| <20 | 20≤ | |||
| Gender | Male | 368 (11.3) | 1664 (88.7) | 1.286 (0.230) |
| Female | 441 (12.4) | 2235 (87.6) | ||
| Age | 19~39 | 0 (0) | 1155 (100.0) | 1099.318 (<0.001) |
| 40~64 | 155 (7.1) | 1925 (92.9) | ||
| 65≤ | 654 (42.3) | 819 (57.7) | ||
| Education | ≤Elementary | 395 (47.1) | 421 (52.9) | 900.679 (<0.001) |
| Middle school | 110 (25.9) | 278 (74.1) | ||
| High school | 153 (7.7) | 1325 (92.3) | ||
| College ≤ | 67 (3.0) | 1787 (97.0) | ||
| House income | Low | 419 (32.7) | 577 (67.3) | 415.864 (<0.001) |
| Low-middle | 197 (13.0) | 932 (87.0) | ||
| High-middle | 116 (7.5) | 1122 (92.5) | ||
| High | 73 (4.7) | 1264 (95.3) | ||
*by complex samples chi-square test
