Table 2 Patient demographic and clinical characteristics after propensity score matching.

From: Invasive micropapillary carcinoma of the breast had no difference in prognosis compared with invasive ductal carcinoma: a propensity-matched analysis

Characteristics

IMPC (n = 324) n

%

IDC (n = 324) n

%

p value

Age, years

    

0.077

Mean

52.4

 

51.7

  

SDa

11.0

 

9.7

  

Tumour size, cm

    

0.370

T ≤ 2

130

40.1

126

38.9

 

2 < T ≤ 5

181

55.9

177

54.6

 

T ≥ 5

13

4.0

21

6.5

 

Node status

    

0.715

0

101

31.2

101

31.2

 

1–3

85

26.2

97

29.9

 

4–9

71

21.9

66

20.4

 

≥10

67

20.7

60

18.5

 

TNM stage

    

0.441

I

58

17.9

54

16.7

 

II

125

38.3

141

43.5

 

III

141

43.8

129

39.8

 

LVI b

    

0.869

yes

231

71.3

237

73.1

 

no

72

22.2

67

20.6

 

unknown

21

6.4

20

6.2

 

Hormone status

ERc positive

275

84.3

283

87.3

0.363

PRd positive

260

84.3

258

79.6

0.845

HER2e positive

107

33.0

100

30.9

0.555

Surgery

    

0.609

MRMf

249

76.8

263

81.2

 

BCSg

31

9.8

25

7.7

 

Mastectomy

28

8.6

23

7.1

 

Others

16

4.9

13

4.0

 
  1. SDa: standard deviation.
  2. LVIb: lymphovascular invasion.
  3. ERc: oestrogen receptor.
  4. PRd: progestin receptor.
  5. HER2e: epidermal growth factor receptor 2.
  6. MRMf: modified radical mastectomy.
  7. BCSg: breast conserving surgery.