Table 3.
Unadjusted and adjusted proportional odds ratios (OR) and 95% confidence intervals (CI)* for 10-year self-reported tooth loss
| Baseline characteristics | White (n=2959) | African-American (n=507) | ||||
|---|---|---|---|---|---|---|
|
|
|
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| Unadjusted | Full model | Final model | Unadjusted | Full model | Final model | |
| Periodontal disease | ||||||
| Moderate vs. None/Mild | 1.80 (1.53–2.11) | 1.63 (1.38–1.93) | 1.64 (1.39–1.94) | 1.28 (0.87–1.88) | 1.14 (0.75–1.74) | 1.21 (0.81–1.79) |
| Severe vs. None/Mild | 3.49 (2.81–4.34) | 2.96 (2.35–3.72) | 3.03 (2.42–3.80) | 2.28 (1.43–3.64) | 2.14 (1.28–3.59) | 2.22 (1.37–3.59) |
| Number of remaining teeth | ||||||
| 10–19 teeth vs. 1–9 teeth | 2.03 (1.38–3.00) | 2.27 (1.51–3.42) | 2.23 (1.49–3.35) | 1.18 (0.72–1.95) | 1.39 (0.81–2.39) | |
| ≥20 teeth vs. 1–9 teeth | 1.47 (1.05–2.06) | 2.19 (1.52–3.17) | 2.09 (1.46–3.01) | 0.84 (0.53–1.32) | 1.22 (0.72–2.08) | |
| Root fragments vs. None | 3.69 (2.09–6.53) | 2.90 (1.60–5.25) | 2.93 (1.63–5.26) | 1.18 (0.62–2.26) | 0.62 (0.30–1.29) | |
| Coronal caries vs. None | 1.63 (1.29–2.07) | 1.12 (0.86–1.46) | 1.76 (1.25–2.47) | 1.17 (0.77–1.76) | ||
| Root caries vs. None | 1.89 (1.28–2.78) | 1.05 (0.69–1.59) | 2.39 (1.50–3.79) | 1.89 (1.12–3.19) | 1.86 (1.14–3.03) | |
| Household income (1996–1998 US dollars) | ||||||
| <$25,000 vs. $50,000 or more | 1.50 (1.21–1.56) | 1.42 (1.11–1.80) | 1.50 (1.19–1.89) | 1.70 (1.12–2.58) | 1.06 (0.62–1.81) | |
| $25–<50,000 vs. $50,000 or more | 1.51 (1.29–1.77) | 1.44 (1.22–1.70) | 1.47 (1.25–1.73) | 1.13 (0.71–1.81) | 1.05 (0.63–1.76) | |
| Educational attainment | ||||||
| Less than high school vs. Advanced | 1.66 (1.26–2.18) | 1.20 (0.88–1.63) | 2.82 (1.83–4.35) | 2.06 (1.23–3.46) | 2.15 (1.36–3.41) | |
| Completion of high school vs. Advanced | 1.14 (0.98–1.33) | 1.06 (0.90–1.24) | 1.22 (0.82–1.83) | 1.00 (0.64–1.57) | 1.02 (0.67–1.54) | |
| Smoking | ||||||
| Current vs. Never | 1.73 (1.35–2.21) | 1.37 (1.06–1.77) | 1.37 (1.06–1.77) | 1.48 (0.86–2.55) | 1.12 (0.62–2.02) | |
| Former vs. Never | 1.30 (1.11–1.51) | 1.13 (0.96–1.33) | 1.13 (0.96–1.33) | 1.16 (0.81–1.67) | 1.14 (0.77–1.69) | |
| Diabetes vs. None | 1.07 (0.84–1.35) | 0.98 (0.75–1.23) | 1.67 (1.08–2.56) | 1.44 (0.91–2.27) | 1.51 (0.96–2.37) | |
| Dental flossing | ||||||
| Not at all vs. Two times per week or more | 1.36 (1.16–1.60) | 1.14 (0.96–1.37) | 1.60 (1.12–2.29) | 0.55 (0.28–1.11) | ||
| One time vs. Two times per week or more | 1.21 (0.93–1.57) | 1.11 (0.85–1.46) | 0.79 (0.41–1.50) | 0.98 (0.63–1.51) | ||
| Brushing teeth once daily or none vs. At least twice daily | 1.26 (1.07–.148) | 1.04 (0.88–1.24) | 1.39 (0.97–2.00) | 1.06 (0.70–1.60) | ||
| Problem-oriented vs. Regular dental visit | 1.62 (1.33–1.99) | 1.24 (0.98–1.57) | 1.35 (1.07–1.69) | 2.09 (1.46–3.00) | 1.66 (1.05–2.60) | 1.61 (1.10–2.38) |
| Male vs. Female | 1.17 (0.92–1.50) | 1.12 (0.95–1.33) | 1.17 (1.00–1.37) | 1.23 (0.86–1.75) | 1.10 (0.71–1.70) | |
*
Separate multivariate ordinal logistic regression models for Whites and AAs estimated the associations between periodontal disease and the proportional odds of losing teeth. In the final model for Whites, significant covariates included in the model were the number of remaining teeth, root fragments, household income, smoking, reason to visit a dentist and gender. While, covariates that were significantly associated with incident tooth loss for AAs were root caries, education, diabetes and reason to visit a dentist.