Table 4.

Logistic regression model with the target variable “existence of aortic calcifications” using standard criteria for inclusion and exclusion (model 1) and logistic regression model with the target variable “existence of aortic calcifications” disregarding the factor “age” (model 2)

	Wald	Significance	Regression coefficient (β)	Exp (β)	Lower 95 % CI	Upper 95 % CI
Model 1
Age	90.785	<0.001	0.096	1.101	1.079	1.123
Number of apical radiolucencies w/o endodontic therapy	23.964	<0.001	0.385	1.470	1.260	1.715
Gender (male)	7.404	0.002	0.631	1.879	1.193	2.960
Caries per tooth	6.827	0.009	1.073	2.924	1.308	6.540
Number of restorations (fillings and/or crowns)	4.725	0.030	−0.37	0.964	0.933	0.996
Constant	79.444	<0.001	−6.092	0.002
Model 2
Number of teeth	55.967	<0.001	−0.095	0.909	0.887	0.932
Caries per tooth	9.017	0.003	1.076	2.933	1.453	5.919
Number of restorations	10.992	0.001	−0.048	0.953	0.927	0.981
Number of apical radiolucencies w/o endodontic therapy	39.953	<0.001	0.474	1.606	1.387	1.860
Distance from the crown to the bone	17.836	<0.001	0.259	1.295	1.148	1.459
Gender	4.79	0.029	0.439	1.551	1.047	2.296
Constant	24.509	<0.001	0.689	3.413	–	–

The surrogate parameter for marginal periodontitis appears within the models