Crude and adjusted odds ratios for P gingivalis IgG and memory tests. Delayed verbal memory (impaired <4/9 possible points)
| P gingivalis IgG (EU) | Models for delayed verbal memory OR (95% CI) | |||
| Crude | Model 1 | Model 2 | Model 3 | |
| (⩽57) [reference] | 1 | 1 | 1 | 1 |
| (58–65) | 1.43 (0.67–3.03) | 1.40 (0.64–3.09) | 1.04 (0.43–2.50) | 1.82 (0.88–3.75) |
| (66–119) | 2.03 (0.80–5.18) | 1.94 (0.69–5.41) | 1.54 (0.49–4.81) | 2.60 (0.91–7.46) |
| (>119) | 2.89 (1.14–7.29) | 3.23 (1.19–8.79) | 1.81 (0.56–5.85) | 3.01 (1.06–8.53) |
| p Trend | 0.045 | 0.01 | 0.45 | 0.22 |
Crude, association of P gingivalis IgG and cognitive test; Model 1, additionally adjusted for age, sex and education; Model 2, additionally adjusted for race, insurance and income; Model 3, additionally adjusted for history of diabetes mellitus, hypertension, smoking, congestive heart failure, coronary artery disease, stroke and C reactive protein.