. 2013 Apr;2(2):148–154. doi: 10.1089/biores.2012.0278

Table 4.

Association Between Parameters of Lymph Node Metastasis and the Number of Different Types of Morphological Structures in Breast Tumors

	Premenopausal patients		Postmenopausal patients
No. of different types of morphological structures	Frequency of lymph node metastasis, n/N (%)	Number of lymph nodes with metastases, mean±SD (n)	Frequency of lymph node metastasis, n/N (%)	Number of lymph nodes with metastases, mean±SD (n)
1	1/4 (25.0)	5.0 (1)	1/10 (10.0)	3.0 (1)
2	3/16 (18.7)	4.0±2.8 (3)	5/25 (20.0)	10.5±8.8 (5)
3	4/14 (28.5)	5.5±8.3 (4)	16/36 (44.4)^*	5.0±4.4 (16)^†
4	7/16 (43.7)	4.8±4.8 (7)	13/24 (54.2)^**	4.2±3.3 (13)^††
5	2/3 (66.7)	1.0±0.0 (3)	8/14 (57.1)^***	3.5±3.1 (8)^†††

^{^*}

p=0.06 (differences between patients with three types and one or two types of morphological structures).

^{^**}

p=0.02 (differences between patients with four types and one or two types of morphological structures).

^{^***}

p=0.03 (differences between patients with five types and one or two types of morphological structures).

^{^†}

p=0.071 (differences between patients with three types and two types of morphological structures).

^{^††}

p=0.036 (differences between patients with four types and two types of morphological structures).

^{^†††}

p=0.059 (differences between patients with five types and two types of morphological structures).

n, number of patients with lymph node metastases; N, number of patients in sample.