Table 3. Adjusted associations of oral hygiene behaviors with a higher CPI (n=1,911).
| Variables | ORs (95% CI) | ||||
|---|---|---|---|---|---|
| Model 1a) | Model 2b) | Model 3c) | Model 4d) | ||
| Tooth brushing (times per day) | |||||
| Once or none | 1.15 (0.80–1.67) | 1.04 (0.71–1.51) | 1.00 (0.68–1.487) | 1.04 (0.71–1.53) | |
| Twice or more | 1 | 1 | 1 | 1 | |
| Use of dental flossing | |||||
| No | 2.38 (2.14–2.76) | 2.05 (1.65–2.42) | 1.87 (1.38–2.54) | 1.83 (1.35–2.49) | |
| Yes | 1 | 1 | 1 | 1 | |
| Use of interproximal brush | |||||
| No | 1.18 (0.99–1.46) | 1.11 (0.83–1.47) | 1.09 (0.82–1.36) | 1.10 (0.82–1.47) | |
| Yes | 1 | 1 | 1 | 1 | |
| Use of mouth rinse | |||||
| No | 0.87 (0.68–1.09) | 0.83 (0.65–1.05) | 0.83 (0.65–1.06) | 0.83 (0.64–1.05) | |
| Yes | 1 | 1 | 1 | 1 | |
Bold values denote statistical significance at P<0.05.
CPI: Community Periodontal Index, OR: odds ratio, CI: confidence interval.
a)Model 1 contained unadjusted associations; b)Model 2 was adjusted for age, sex, household income and highest diploma; c)Model 3 was adjusted for all variables in model 2 and dental clinic visit, chewing problem, and perceived oral health status; d)Model 4 was adjusted for all variables in model 3 and smoking status, alcohol drinking, hypertension, diabetes mellitus, and perceived health status.