Table 2.
Multiple Poisson regression of association among independent variable and dental caries (DMFT)
| Oral hygiene variables | Model 1 | Model 2 | Model 3 | Model 4 | Model 5 | Model 6 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RR [CI] | p* | RR [CI] | p* | RR [CI] | p* | RR [CI] | p* | RR [CI] | p* | RR [CI] | p* | |
| Toothbrush Frequency | ||||||||||||
| ≤ twice a day | 2.67 | 2.80 | 2.79 | 2.83 | ||||||||
| [2.19-3.26] | [2.26-3.45] | [2.23-3.48] | [2.26-3.54] | |||||||||
| More than twice a day | 1 | <0.001 | 1 | <0.001 | 1 | <0.001 | 1 | <0.001 | ||||
| Simplified Oral Hygiene Index | ||||||||||||
| Unsatisfactory | 1.31 | 0.90 | 0.92 | |||||||||
| [1.11-1.54] | [0.77-1.05] | [0.77-1.08] | ||||||||||
| Satisfactory | 1 | <0.001 | 1 | 0.190 | 1 | 0.301 | ||||||
| Visible Plaque Index | ||||||||||||
| Present | 1.48 | 0.921 | 0.96 | |||||||||
| [1.23-1.76] | [0.78-1.09] | [0.80-1.16] | ||||||||||
| Absent | 1 | <0.001 | 1 | 0.347 | 1 | 0.686 | ||||||
*Significance evaluated by Multiple Poisson regression. RR: Rate ratio adjusted by gender, mother’s level of education, household income, sugar intake, mutans streptococci and lactobacilli. CI: 95% confidence interval. Results significant at the 5% level marked in bold.