Dynamic contrast enhanced-MRI and diffusion-weighted image as predictors of lymphovascular invasion in node-negative invasive breast cancer

Table 1 Clinicopathological characteristics of patients according to lymphovascular invasion status

Variables	LVI+ (n=42)	LVI− (n=90)	OR	P value
Mean age (years)^a	53±1.75	54±1.20		0.494
Histologic grade			0.7 (0.4-1.1)	0.080^b
Well	7 (16.7)	32 (35.6)
Moderate	19 (45.2)	29 (32.2)
Poor	16 (38.1)	29 (32.2)
Ki-67 status			1.0 (0.5-2.1)	0.986
High (≥14%)	22 (52.4)	47 (52.2)
Low (<14%)	20 (47.6)	42 (47.8)
Tumor subtype			0.9 (0.6-1.5)	0.873
ER-positive	29 (69)	64 (71.1)
HER2-positive	5 (11.9)	12 (13.3)
Triple-negative	8 (19)	14 (15.6)
Pathologic tumor size (cm)	2.1±0.13	1.6±0.08	0.5 (0.3-0.7)	0.001^c
MRI tumor size	2.0±0.15	1.7±0.11	0.8 (0.5-1.1)	0.007

ER Estrogen receptor, HER2 Human epithermal growth factor receptor 2
*Data are numbers of patients, with percentages in parentheses unless otherwise indicated
^aData are mean age of patients
^bKruskal-Wallis test
^cMann-Whitney U test

ISSN: 1477-7819