Table 4.

The results of ALNFM.

Features	β	S．E	Wald	Multivariate OR (95% CI)	P value
Constant	-5.07	0.94	-5.39	0.01(0.001- 0.04)	<0.001
Orientation	1.68	0.29	5.83	5.34(3.07- 9.51)	<0.001
Parallel Not parallel
Margin contour	0.43	0.27	1.62	1.54(0.93-2.66)	0.106
Smooth Lobulate
Angular, Spiculate
Main posterior echo	0.46	0.27	1.69	1.58(0.93-2.70)	0.091
Enhancement
Indifferent Shadowing
US tumour size	0.03	0.01	2.68	1.03(1.001-1.05)	0.007
HER-2	0.65	0.30	2.13	1.91(1.05- 3.46)	0.033
Negative Positive
US of lymph node	-3.57	0.79	-4.55	0.03(0.01- 0.12)	<0.001
No lymph nodes found
Lymph nodes found
Aspect ratio	0.69	0.36	1.91	1.99(0.99- 4.09)	0.057
No lymph nodes found
Aspect ratio≥2
Aspect ratio<2
Cortical thickness	1.61	0.27	5.87	4.99(3.01- 8.89)	<0.001
No lymph nodes found
Thickness<3 mm
Symmetric thickness≥3 mm
Asymmetric thickness≥3 mm
Central hilum	1.18	0.39	3.05	3.25(1.58-7.28)	0.002
No lymph nodes found
Preserved
Partially absent
Completely absent