Table 4 Multivariable analysis of factors associated with overall pathologic complete response among TNBC patients

From: Pathologic complete response after neoadjuvant systemic therapy for breast cancer in BRCA mutation carriers and noncarriers

Characteristic

Univariate analysis

Multivariable analysis

No pCR n = 278

pCR n = 133

p

Odds ratio (95% CI)

p

Age

52 (44–60)

47 (36–56)

<0.001

0.97 (0.95, 1.00)

0.024

Race

  

0.12

  

 Black

61 (75%)

20 (25%)

   

 Asian, Native American, or other

42 (61%)

27 (39%)

   

 White

144 (64%)

80 (36%)

   

 Unknown

31

6

   

Clinical T stage

  

0.2

  

 T1

33 (56%)

26 (44%)

   

 T2

165 (70%)

70 (30%)

   

 T3

60 (72%)

23 (28%)

   

 T4

19 (66%)

10 (34%)

   

 Unknown

1

4

   

BRCA status

  

0.013

  

 Noncarrier

226 (71%)

91 (29%)

 

ref.

ref.

BRCA1

36 (54%)

31 (46%)

 

1.66 (0.81, 3.36)

0.2

BRCA2

16 (59%)

11 (41%)

 

1.97 (0.71–5.17)

0.2

Differentiation

  

0.062

  

 Poor

242 (66%)

124 (34%)

   

 Well/moderate

33 (80%)

8 (20%)

   

 Unknown

3

1

   

Histology

  

0.07

  

 Ductal

264 (69%)

121 (31%)

   

 Lobular/mixed

13 (65%)

7 (35%)

   

 Unknown

1

5

   

Neoadjuvant regimen

  

0.15

  

 ACT-based

263 (67%)

130 (33%)

   

 Taxane, platinum, or CMF

15 (83%)

3 (17%)

   

 Carboplatin

73 (68%)

37 (32%)

<0.001

  

 Lymphovascular invasion

81 (85%)

14 (15%)

<0.001

0.44 (0.22–0.83)

0.014

 Unknown

52

56

   
  1. Categorical data presented as n (%) and continuous as median (interquartile range).
  2. TNBC triple-negative breast cancer, pCR pathologic complete response, CI confidence interval, ACT adriamycin cyclophosphamide and taxol, CMF cyclophosphamide, methotrexate, and fluorouracil.