Table 5.

The effect of age, gender and anatomical characteristics of bifid mandibular canals (BMCs) and retromolar foramens (RFs) on their visibility on panoramic radiographs

Factors related to BMCs	B	SE	p-value	Odds ratio	95% confidence interval
					Lower	Upper
Visibility of BMCs
Age	−0.005	0.014	0.747	0.995	0.968	1.024
Gender	−0.207	0.450	0.645	0.813	0.336	1.963
Width of mandibular bone	−0.221	0.141	0.119	0.802	0.608	1.058
Height of BMC	0.064	0.057	0.187	1.079	0.964	1.207
Length of BMC	−0.010	0.068	0.888	0.990	0.867	1.131
Diameter of BMC	0.791	0.374	0.035a	2.205	1.059	4.592
Angle of BMC	0.000	0.011	0.965	1.000	0.978	1.022
Visibility of RFs
Age	0.002	0.026	0.949	1.002	0.951	1.055
Gender	−0.233	1.045	0.823	0.792	0.102	6.140
Diameter of RF	1.900	0.799	0.017a	6.685	1.397	31.980

SE, standard error.

^ap < 0.05 (binary logistic regression).