Table 5.
Logistic regression analyses for elevated GGT.
| Participants | Variables | Crude OR (95%CI) | Adjusted OR (95%CI) | |
|---|---|---|---|---|
| Men | Serum IgG antibody titers against P. gingivalis | The 1st tertile | Reference | Reference |
| The 2nd tertile | 0.64 (0.25–1.63) | 0.68 (0.25–1.88) | ||
| The 3rd tertile | 0.64 (0.25–1.63) | 0.70 (0.26–1.89) | ||
| Age | 0.96 (0.92–1.00) | 0.96 (0.91–1.01) | ||
| Number of teeth | 1.02 (0.97–1.06) | 1.00 (0.95–1.05) | ||
| Hypertension | 2.48 (0.96–6.38) | 2.98 (1.06–8.41)∗ | ||
| Obesity | 2.00 (0.92–4.34) | 1.59 (0.68–3.68) | ||
| Diabetes | 0.86 (0.40–1.85) | 0.97 (0.41–2.28) | ||
| Smoking habit | 1.83 (0.74–4.51) | 1.83 (0.70–4.83) | ||
| Drinking habit | 3.90 (1.30–11.71)∗ | 3.77 (1.20–11.84)∗ | ||
| Women | Serum IgG antibody titers against P. gingivalis | The 1st tertile | Reference | Reference |
| The 2nd tertile | 1.14 (0.45–2.90) | 1.65 (0.63–4.34) | ||
| The 3rd tertile | 1.27 (0.51–3.18) | 1.50 (0.57–3.92) | ||
| Age | 0.97 (0.93–1.01) | 0.98 (0.94–1.03) | ||
| Number of teeth | 1.04 (0.99–1.09) | 1.03 (0.98–1.08) | ||
| Hypertension | 0.92 (0.42–2.00) | 0.96 (0.41–2.22) | ||
| Obesity | 1.73 (0.82–3.67) | 1.67 (0.75–3.71) | ||
| Diabetes | 1.13 (0.51–2.51) | 1.08 (0.48–2.44) | ||
| Drinking habit | 0.69 (0.15–3.18) | 0.61 (0.13–2.95) |
Smoking habit as a variable was excluded from the analysis in women because of small number of smokers. GGT, gamma-glutamyltransferase. Elevated GGT levels were defined as >64 IU/l for men and >32 IU/l for women. OR, odds ratio; 95% CI, confidence interval; ∗p < 0.05.