Table 4.
Percent of children with tooth decay and number of decayed teeth for the 94 children included in the final analysis.
| Condition | Percent with Decayed teeth |
No. teeth at last exam, Mean ± SD* |
No. decayed teeth Mean ± SD [Max]† |
Relative Risk‡ (95% CI) |
|---|---|---|---|---|
| Control (N=29) | 51.7 | 17.2 ± 2.5 | 1.9 ± 2.4 [8] | 1.00 |
| Xyl-2X (N=33) | 24.2 | 17.2 ± 2.9 | 0.6 ± 1.1 [4] | 0.30 (0.13, 0.66) |
| Xyl-3X (N=32) | 40.6 | 16.6 ± 3.2 | 1.0 ± 1.4 [6] | 0.50 (0.26, 0.96) |
*
94 children had at least one exam during the study period and were included in this intent-to-treat analysis. Of these, 84 completed all follow-up exams and 10 who dropped out after having an interim exam.
SD = Standard Deviation.
†
Max = maximum range.
‡
Non-adjusted analysis. Generalized estimating equations with a robust variance estimator were used to fit the Poisson regression in order to account for overdispersion due to multiple teeth per subject.
§
Wald test for comparison with control condition. Score test for overall condition effect (X2=7.26; P-value = 0.027).