Table 3. The relationship between community type and general as well as clinical conditions.
| Odds ratio |
||
|---|---|---|
| Crude (95% CI) | Adjusted (95% CI) | |
| Age | 1.01 (1.00–1.02)*** | 1.00 (1.00–1.01)** |
| Sex (male vs. female) | 1.00 (0.88–1.14) | – |
| BMI | 1.02 (1.01–1.04)** | 1.03 (1.01–1.05)** |
| Number of teeth | 0.96 (0.95–0.97)*** | 0.99 (0.98–1.00) |
| Dental caries status | ||
| Presence of DT | 1.19 (1.05–1.36)** | 1.09 (0.95–1.25) |
| Fraction of DFT (%) | 1.01 (1.01–1.02)*** | 1.01 (1.01–1.02)*** |
| Periodontal conditions | ||
| Mean PPD | 1.27 (1.16–1.39)*** | 1.08 (0.96–1.22) |
| Fraction of teeth with BOP (%) | 1.00 (1.00–1.00)*** | 0.99 (0.99–1.00) |
| Mean plaque index | 1.27 (1.16–1.40)*** | 1.04 (0.92–1.18) |
| Current smoking | 1.50 (1.30–1.73)*** | 1.70 (1.46–1.98)*** |
Dependent variable: community type (1: Community type I, 0: Community type II).
Bivariate and Poisson logistic regression analysis was used to examine the association between environmental conditions and community types of salivary microbiome of subjects with ≥ 9 teeth (n = 2,080). Crude and adjusted odds ratio were calculated by bivariate analysis and Poisson logistic regression analysis, respectively. Sex was excluded from this model, because no significant relationship with the community type was observed in the bivariate analysis.
***P < 0.001, **P < 0.01, *P < 0.05.
Abbreviations: CI, confidence interval; BMI; body mass index; DT, decayed teeth; DFT, decayed and filled teeth; PPD, periodontal pocket depth; BOP, bleeding on probing.