Table 2.
Results of WQS metal mixtures analysis on objective and subject oral health status
| Children (6–19-year-olds) | ||||
|---|---|---|---|---|
| RR | Lower 95% CI | Upper 95% CI | ||
| Blood metals WQS index | ||||
| Self-rated oral health | 1.04 | 1.02 | 1.07 | |
| DMFS count | 1.32 | 1.11 | 1.56 | |
| DMFT count | 1.21 | 1.07 | 1.38 | |
| Urine metals WQS index | ||||
| Self-rated oral health | 1.00 | 0.94 | 1.06 | |
| DMFS count | 2.06 | 1.58 | 2.70 | |
| DMFT count | 1.76 | 1.39 | 2.23 | |
Negative binomial models were used for DMFS (number of decayed, missing and filled teeth surfaces) and DMFT (number of decayed, missing and filled teeth) while a Poisson model for self-rated oral health.