From: Tumor microenvironment and immune system preservation in early-stage breast cancer: routes for early recurrence after mastectomy and treatment for lobular and ductal forms of disease
Negative recurrence (n = 25)
Positive recurrence (n = 25)
p
Age (mean)
51.72
49.96
0.59
Lymph node metastases
3.04
3.92
0.527
Grade
1.96
2
0.166
Hormonal status
 Pre-menopause
12
14
0.5713
 Menopause
13
11