Table 1. ADC Values and Prognostic Factors in 71 Breast Cancer Patients (n = 71).

Prognostic Factor Subgroup	Lesionsa	ADC (× 10-3 mm2/s)		P Value
		Mean	95% CI
Lymph node status				< 0.01
Metastasis	21 (30)	.83	0.77, 0.89
No metastasis	50 (70)	.94	0.89, 1.00
Histological type				0.19
IDC NOS	54 (76)	.89	0.84, 0.93
Non IDC	17 (24)	.98	0.85, 1.12
Histological grade				0.48
Grade 1	26 (37)	.95	0.85, 1.04
Grade 2	18 (25)	.88	0.84, 0.94
Grade 3	27 (38)	.89	0.82, 0.96
Size				0.46
< 2 cm	39 (55)	.90	0.82, 0.97
≥ 2 cm	32 (45)	.93	0.88, 0.98
ER				0.93
Positive	48 (67)	.88	0.85, 0.97
Negative	23 (33)	.91	0.84, 0.98
PR				0.88
Positive	44 (62)	.91	0.84, 0.97
Negative	26 (38)	.92	0.85, 0.98
HER2				0.85
Positive	19 (27)	.90	0.81, 0.99
Negative	52 (73)	.88	0.84, 0.95
Ki-67				0.03
Positive	32 (45)	.85	0.84, 0.98
Negative	39 (55)	.96	0.85, 0.97
p53				0.62
Positive	33 (46)	.93	0.84, 0.98
Negative	38 (54)	.90	0.82, 0.97
Immunohistochemical type				0.51
Luminal A	35 (49)	.93	0.86, 1.00
Luminal B	13 (18)	.86	0.78, 0.95
Triple negative	17 (24)	.88	0.80, 0.95
HER2 positive	6 (9)	.99	0.79, 1.19

Abbreviations: HER2, human epidermal growth factor receptor; IDC, invasive ductal carcinoma; NOS, not otherwise specified.

^aData are presented as No. (%).