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Table 1 Comparison of clinical indicators of breast cancer patients between the training and the verification groups

From: Application of mammography-based radiomics signature for preoperative prediction of triple-negative breast cancer

Group

Cases

Age

Size

Lesion location

X-ray manifestation

BI-RADS

Right

Left

Lumps

Calcification

Lumps and calcifications

Structural distortion

Asymmetric densification

4a

4b

4c

5

Training group

211

53.32 ± 14.03

32.10 ± 18.23

103

108

71

25

45

31

39

50

48

56

57

Verification group

108

54.75 ± 15.08

28.95 ± 17.01

58

50

27

18

27

25

11

31

23

25

29

P value

 

0.456

0.147

0.409

8.901

0.802

Statistics

 

− 0.746a

− 1.452a

0.683b

0.064b

0.995

  1. Statistics: a: t value; b: X2