Table 1 Univariate analysis of clinical characteristics in the training Set.

From: Prediction of axillary lymph node metastasis in triple negative breast cancer using MRI radiomics and clinical features

Clinical Characteristics

Total Cases

Non-metastasis Cases (n = 77)

Metastasis Cases (n = 38)

p-value

Age (years)

 

44.77 ± 10.44

47.53 ± 10.59

0.187

Lesion Location

 Left Breast

62

41(53.25)

21(55.26)

0.838

 Right Breast

53

36(46.75)

17(44.74)

 

Nottingham Grade

 Grade I + II

42

35 (45.45)

7 (18.42)

0.005*

 Grade III

73

42 (54.55)

31(81.58)

 

 Ki-67

 

70.00 (55.00,80.00)

70.00 (50.00,80.00)

0.974

Tumor Size(cm)

 

2.60 (2.00,4.30)

3.50 (2.80,5.90)

0.016*

E-cadherin

 Negative

12

10 (12.99)

2 (5.26)

0.332

 Positive

103

67 (87.01)

36 (94.74)

CK5/6

 Negative

56

42 (54.55)

14 (36.84)

0.074

 Positive

59

35 (45.45)

24 (63.16)

P63

 Negative

96

66 (85.71)

30 (78.95)

0.358

 Positive

19

11(14.29)

8 (21.05)

  1. Qualitative data are represented as frequencies (percentages), and inter-group comparisons were conducted using chi-square test or Fisher’s exact test. Quantitative data with normal distribution are represented as mean ± standard deviation and compared using t-test, while non-normally distributed data are represented as median (interquartile range) and compared using rank-sum test. *Indicates statistically significant inter-group differences.
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