Preoperative Prediction of Axillary Lymph Node Metastasis in Breast Cancer Based on Intratumoral and Peritumoral DCE-MRI Radiomics Nomogram

Table 1

Characteristics of patients in primary and validation cohorts.

Characteristic	Training cohort (n = 250)			Validation cohort (n = 62)
	Negative for ALN metastasis	Positive for ALN metastasis	value	Negative for ALN metastasis	Positive for ALN metastasis	value
Age	49.171 ± 9.443	47.439 ± 9.697	0.162	52.132 ± 9.062	49.792 ± 11.580	0.378
Max diameter	2.071 ± 0.855	2.283 ± 0.799	0.051	1.853 ± 0.581	2.588 ± 0.852	<0.001
RAD_Sig	0.334 ± 0.0830	0.508 ± 0.135	<0.001	0.344 ± 0.101	0.445 ± 0.120	<0.001
Menopausal state			0.423			0.178
0	90 (0.592)	63 (0.643)		17 (0.447)	15 (0.625)
1	62 (0.408)	35 (0.357)		21 (0.553)	9 (0.375)
MR reported _ALN status			<0.001			<0.001
0	131 (0.862)	43 (0.439)		31 (0.816)	9 (0.375)
1	21 (0.138)	55 (0.561)		7 (0.184)	15 (0.625)