Table 4 Clinicopathological features of breast cancer patients with microcalcifications

Age, years^c

50.00 ± 7.82

57.20 ± 8.29

0.007^b

Size of microcalcification area, CC view, mm^c

8.97 ± 5.79

16.16 ± 9.67

0.010^a

Size of microcalcification area, MLO view, mm^c

10.61 ± 6.16

15.96 ± 8.98

0.039^a

Max diameter of calcified nodule, CC view, mm^c

0.70 ± 0.43

1.54 ± 1.01

0.001^b

Max diameter of calcified nodule, MLO view, mm^c

0.74 ± 0.40

1.53 ± 0.95

0.001^b

Average gray value of calcified area, MLO^c

2,565.16 ± 254.58

2,553.16 ± 168.85

0.855

Average gray value of paraglandular, MLO^c

2,494.09 ± 254.42

2458.13 ± 175.80

0.590

Gray ratio, calcified area /paraglandular, MLO^c

1.03 ± 0.22

1.04 ± 0.21

0.140

Gray difference, calcified area - paraglandular, MLO^c

71.06 ± 54.22

95.03 ± 49.50

0.146

Tumor size, cm^c

1.23 ± 1.13

2.01 ± 1.20

0.073

Estrogen receptor, %

71.54 ± 32.11

57.59 ± 39.50

0.264

Progesterone receptor, %

54.62 ± 31.52

36.90 ± 32.19

0.126

HER-2 (%)

 Negative

16 (94.12%)

19 (76.00%)

0.122

 Positive

1 (5.88%)

6 (24.00%)

Ki67 (%)

31.54 ± 24.44

29.15 ± 16.21

0.759

Surgical type

 Breast-conserving

4 (23.53%)

2 (8.00%)

0.158

 Mastectomy, ± reconstruction

13 (76.47%)

23 (92.00%)

SLNB (%)

 Negative

13 (76.47%)

19 (76.00%)

0.972

 Positive

4 (23.53%)

6 (24.00%)