Table 2.
Periodontal disease odds ratios according to mean PD cut-off value in males and females
| Accumulation of metabolic components | Males | Females | Interaction for gender × metabolic component p-value† | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of subjects with periodontal disease | Crude OR (95% CI) | Adjusted OR* (95% CI) | No. of subjects with periodontal disease | Crude OR (95% CI) | Adjusted OR* (95% CI) | ||||||
| Mean PD ≥ 2.0 mm | 788 (75.6) | 782 (58.8) | |||||||||
| Number of metabolic components | |||||||||||
| 0 component | 86 (67.2) | 1 | 1 | 99 (46.9) | 1 | 1 | |||||
| 1 and 2 components | 392 (73.5) | 1.36 | (0.90–2.06) | 1.18 | (0.77–1.82) | 383 (57.2) | 1.52 | (1.11–2.07) | 1.28 | (0.93–1.78) | 0.553 |
| ≥3 components (metabolic syndrome) | 310 (81.4) | 2.13 | (1.36–3.35) | 1.64 | (1.02–2.64) | 300 (66.5) | 2.25 | (1.61–3.14) | 1.55 | (1.07–2.24) | 0.790 |
| Mean PD ≥ 2.5 mm | 408 (39.2) | 334 (25.1) | |||||||||
| Number of metabolic components | |||||||||||
| 0 component | 33 (25.8) | 1 | 1 | 31 (14.7) | 1 | 1 | |||||
| 1 and 2 components | 198 (37.1) | 1.70 | (1.10–2.62) | 1.41 | (0.90–2.22) | 155 (23.2) | 1.75 | (1.15–2.67) | 1.45 | (0.93–2.25) | 0.700 |
| ≥3 components (metabolic syndrome) | 177 (43.3) | 2.50 | (1.60–3.90) | 1.86 | (1.17–2.97) | 148 (32.8) | 2.84 | (1.85–4.36) | 1.87 | (1.17–2.98) | 0.640 |
| Mean PD ≥ 3.0 mm | 225 (21.6) | 137 (10.3) | |||||||||
| Number of metabolic components | |||||||||||
| 0 component | 19 (14.8) | 1 | 1 | 9 (4.3) | 1 | 1 | |||||
| 1 and 2 components | 117 (22.0) | 1.60 | (0.94–2.72) | 1.36 | (0.78–2.35) | 59 (8.8) | 2.17 | (1.06–4.46) | 2.00 | (0.95–4.21) | 0.303 |
| ≥3 components (metabolic syndrome) | 89 (23.4) | 1.73 | (1.00–2.98) | 1.32 | (0.75–2.34) | 69 (15.3) | 4.05 | (1.98–8.29) | 3.06 | (1.42–6.59) | 0.036 |
| Mean PD ≥ 3.5 mm | 116 (11.1) | 63 (4.7) | |||||||||
| Number of metabolic components | |||||||||||
| 0 component | 11 (8.6) | 1 | 1 | 3 (1.4) | 1 | 1 | |||||
| 1 and 2 components | 56 (10.5) | 1.25 | (0.63–2.46) | 1.03 | (0.51–2.07) | 28 (4.2) | 3.03 | (0.91–10.06) | 2.59 | (0.76–8.86) | 0.133 |
| ≥3 components (metabolic syndrome) | 49 (12.9) | 1.57 | (0.79–3.12) | 1.21 | (0.59–2.49) | 32 (7.1) | 5.30 | (1.60–17.49) | 3.60 | (1.03–12.61) | 0.066 |
Logistic regression analysis with periodontal disease (mean PD cut-off value ≥2.0, 2.5, 3.0, 3.5 or 4.0 mm) as the dependent variable and accumulation of metabolic components as the independent variable.
Adjusted for age, smoking habits, alcohol intake, toothbrushing frequency and present number of teeth.
p-value of the interaction term consisting of gender and MS components were calculated by using gender, MS components, age, smoking habits, alcohol intake, toothbrushing frequency and present number of teeth as explanatory variables. The interaction term was created by multiplying gender variable (0 = male, 1 = female) by MS components variable (0 = 0 component, 1 = 1 and 2 component, 2 = 3 or more components).