Table 3. .

Multivariate logistic regression analysis for ERR in the second molar and gender and age as independent variables with removal of the maxillary second vs third molar as dependent variable

Parameter	Odds ratio	Removal of second molar vs third molar (n = 67) p-value	95% CI
ERR [no]
Superficial ERR	0.999	-
ERR involving the dentin	4.5	0.118	0.682–30.205
ERR involving the pulp	16.8	0.001	2.976–95.302
Gender [male]
Female	8.7	0.005	1.941–38.670
Age [ascending]	1.0	0.583	0.937–1.122

CI, confidence interval; ERR, external root resorptions.

Group in square brackets was the reference group.