Table 3. Comparison of different predictive models for SHLNM.

Regression model	Lymph node status		AIC	AUC	95%CI(lower-upper)
	No.7	No.11
Depth	−	−	−858.154	0.747	0.673–0.821
	+	−	−869.669	0.816	0.760–0.872
	−	+	−876.880	0.811	0.744–0.879
	+	+	−881.525	0.845	0.792–0.898
Location	−	−	−869.265	0.763	0.671–0.855
	+	−	−890.473	0.842	0.766–0.918
	−	+	−901.094	0.839	0.766–0.913
	+	+	−909.216	0.868	0.800–0.936
Depth+Location	−	−	−886.955	0.844	0.781–0.906
	+	−	−898.971	0.883	0.830–0.935
	−	+	−908.990	0.884	0.833–0.936
	+	+	−913.535	0.897	0.851–0.944
No.7	+	−	−851.856	0.720	0.636–0.804
No.11	−	+	−858.710	0.690	0.585–0.794
No.7+No.11	+	+	−869.092	0.775	0.689–0.861