Value of magnetic resonance diffusion combined with perfusion imaging techniques for diagnosing potentially malignant breast lesions

Table 1 Comparison of the clinical features between benign and malignant patients.

Variables	Benign (n = 36)	Malignant (n = 47)	P value
Age (yr)	44 (28-54)	57 (27-79)	0.238
Family history, n (%)	3 (9.7)	2 (3.8)	0.316
History of benign breast diseases, n (%)	4 (14.8)	5 (9.6)	0.673
History of marriage, n (%)	31 (86.1)	45 (95.7)	0.583
History of delivery, n (%)	29 (80.6)	42 (89.4)	0.402
Long term use of exogenous estrogen, n (%)	0	6 (11.8)	0.242
Alcohol abuse, n (%)	0	1 (1.9)	0.709
Age of menarche, n (%)			0.477
< 12 years old	2 (6.5)	5 (9.6)
≥ 12 years old	29 (93.5)	47 (90.4)
Age of menopause, n (%)1			0.021
> 55 years old	3 (9.7)	7 (13.5)
≤ 55 years old	21 (67.7)	38 (73.1)

¹Patients younger than 55 and not menopausal were not included in this parameter.