Table 4.

Statistics of the ordinal logistic regression. Fn quantities were defined as predictors and staging or grading as ordinal variables. McFadden’s and Nagelkerke’s R² (_McFR² and _NR², respectively) were chosen as the effect size measures. Of note was that the lesser are Akaike information criterion (AIC) and Bayesian information criterion (BIC), and the better is the fit of the model.

Fn Location	Variable	p-Value	McFR2	NR2	Odds Ratio	AIC	BIC
Fn oral	Staging	0.507	0.006	0.008	1.205	86.17	91.77
	Grading	0.225	0.028	0.034	1.539	59.93	65.40
Fn T	Staging	0.016	0.077	0.102	1.771	78.50	83.97
	Grading	0.296	0.020	0.025	1.294	61.14	66.47
Fn adj t	Staging	0.088	0.045	0.061	1.914	69.45	74.34
	Grading	0.199	0.034	0.043	1.592	54.99	56.70

adj t: Adjacent non-neoplastic tissue and T: Tumor tissue.