Table 3.
Association between the number of teeth with dental caries and periodontal disease severity in the 35- to 44-year-old group
| DFT (mean ± SD) |
Degree of periodontitis | Model 1 a | Model 2 b | Model 3 c | ||
|---|---|---|---|---|---|---|
| CAL ≤ 3 mm N = 2944 |
CAL = 4–5 mm N = 1124 |
CAL ≥ 6 mm N = 339 |
P value and OR (95% CI) |
P value and OR (95% CI) |
P value and OR (95% CI) |
|
| Type ABC | 1.93 ± 2.71 | 2.42 ± 3.09 | 2.89 ± 3.39 |
< 0.001 1.07 (1.05,1.09) |
< 0.001 1.09 (1.07,1.11) |
< 0.001 1.09 (1.07, 1.11) |
| Type A | 1.52 ± 2.22 | 1.67 ± 2.32 | 1.65 ± 2.16 |
0.042 1.03 (1,1.06) |
0.001 1.06 (1.03,1.09) |
< 0.001 1.06 (1.03,1.09) |
| Type B | 0.38 ± 1.18 | 0.69 ± 1.55 | 1.11 ± 2.08 |
< 0.001 1.23 (1.19,1.27) |
< 0.001 1.23 (1.19,1.27) |
< 0.001 1.21 (1.17,1.25) |
| Type C | 0.03 ± 0.28 | 0.06 ± 0.43 | 0.13 ± 0.61 |
< 0.001 1.43 (1.27,1.59) |
< 0.001 1.44 (1.28,1.6) |
< 0.001 1.40 (1.24,1.56) |
95% CI, 95% Confidence intervals
aModel 1: DFT was included as the only independent variable in the ordered logistic regression analysis
bModel 2: Social economic status, sex, area, education level, and household income per capita were added to Model 1
cModel 3: Oral health-related behaviours such as smoking status, tooth brushing frequency, use of dental floss, use of a toothpick, alcohol consumption and diabetes were added to Model 2