Table 2.
Period of FMR | N | Prevalence | Odds ratio | 95% CI |
Pa | Mean DMFS | 95% CI |
Differenceb | Pc | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Low | – | High | Low | – | High | ||||||||
Non-FMR group | 364 | 64.6% | 1 | 4.47 | 3.78 | – | 5.16 | ref. | - | ||||
Elementary school | 96 | 47.9% | 1.97 | 1.25 | – | 3.11 | .002 | 2.15 | 1.39 | – | 2.90 | 51.9% | <.001 |
Preschool and elementary school | 22 | 59.1% | 1.26 | 0.52 | – | 3.02 | .383 | 2.86 | 0.96 | – | 4.77 | 36.0% | .659 |
Elementary and junior high school | 43 | 55.8% | 1.44 | 0.76 | – | 2.72 | .172 | 3.93 | 1.86 | – | 6.00 | 12.1% | 1.000 |
Preschool, elementary, and junior high school | 26 | 57.7% | 0.75 | 0.34 | – | 1.69 | .310 | 2.58 | 0.90 | – | 4.25 | 42.3% | .316 |
Fisher's exact test (2-tailed) comparing distributions of subjects with dental caries in permanent teeth.
Difference: Difference of mean values of DMFS between the non-FMR group and the other FMR groups.
Welch's t test (2-tailed) comparing mean DMFS between the non-FMR group and the other FMR groups.
CI, confidence interval; DMFS, decayed, missing, and filled surfaces; FMR, fluoride mouth rinse.