Fig. 3From: A cross-sectional study of relationships between periodontal disease and general health: The Hitachi Oral Healthcare SurveyEffects of BMI, FBG, %FEV1, CAVI, smoking, and HbA1c on severe periodontal disease. Model 1 (M1) is the reference model based on healthy employees with HbA1c < 5.7. Model 2 (M2) is M1 adjusted for age. Model 3 (M3) is M1 adjusted for age and smoking status. Multiple logistic regression analysis was used to obtain the odds ratio. Severe periodontal disease; n = 349. Markers indicate the estimated odds ratio (OR). Vertical ranges indicate the 95% confidence interval (CI)Back to article page