Table 3 Selected variables associated with the risk of DMFT ≥ 3 in the final regression model
Independent variables | β | Wald χ2 | P | OR | 95% CI | |
|---|---|---|---|---|---|---|
Lower | Upper | |||||
Intercept | − 3.8054 | 189.997 | < 0.0001*** | – | – | – |
Region (vs. Rural) | ||||||
Urban | 0.871 | 74.8896 | < 0.0001*** | 2.389 | 1.96 | 2.91 |
Urbanization (vs. Low) | ||||||
Middle | − 0.9299 | 65.1115 | < 0.0001*** | 0.395 | 0.32 | 0.495 |
High | − 0.7631 | 36.9668 | < 0.0001*** | 0.466 | 0.37 | 0.596 |
Gender (vs. Male) | ||||||
Female | 0.6854 | 47.5841 | < 0.0001*** | 1.985 | 1.63 | 2.411 |
Only child (vs. Yes) | ||||||
No | 0.2752 | 6.5702 | 0.0104* | 1.317 | 1.07 | 1.625 |
Self-assessment of oral health status (vs. Average) | ||||||
Very good | − 0.657 | 3.0272 | 0.0819 | 0.518 | 0.25 | 1.087 |
Good | − 0.1532 | 1.427 | 0.2322 | 0.858 | 0.67 | 1.103 |
Poor | 0.4256 | 11.8617 | 0.0006*** | 1.53 | 1.2 | 1.95 |
Very poor | 0.7687 | 10.0731 | 0.0015** | 2.157 | 1.34 | 3.467 |
Time of last dental visit (vs. Never) | ||||||
< 6 months ago | 0.6213 | 16.8055 | < 0.0001*** | 1.861 | 1.38 | 2.505 |
6–12 months ago | 0.1848 | 1.4227 | 0.233 | 1.203 | 0.89 | 1.63 |
> 12 months ago | 0.3287 | 7.7635 | 0.0053** | 1.389 | 1.1 | 1.75 |