Table 5 Multivariable logistic regression analysis for the development of any brain metastasis and brain as the first site of relapse in the BCCA cohort

From: αB-crystallin expression in breast cancer is associated with brain metastasis

 

Odds to any brain mets (95% CI), (events=141)

P-value

Odds to brain as first distant site (95% CI), (events=46)

P-value

Tumor size

2 cm (n=375)

1

 

1

 

 2–5 cm (n=525)

1.13 (0.76–1.69)

0.54

0.70 (0.37–1.33)

0.28

 >5 cm (n=69)

0.39 (0·13–1·18)

0.095

  

Nodal status

 Negative (n=374)

1

 

1

 

 Positive (n=595)

0.53 (0·34–0·82)

0.005

0.55 (0.28–1.08)

0.082

Grade

 1 or 2 (n=336)

1

 

1

 

 3 (n=633)

1.2 (0·76–1·86)

0.441

1.19 (0.57–2.48)

0.65

Any initial chemo

 No (n=648)

1

 

1

 

 Yes (n=321)

1.46 (0.92–2.30)

0.11

0.36 (0.19–0.71)

0.003

Any initial hormonal

 No (n=556)

1

 

1

 

 Yes (n=413)

0.79 (0.50–1.24)

0.3

0.91 (0.45–1.84)

0.79

ER

 Negative (n=316)

1

 

1

 

 Positive (n=653)

0.58 (0.37–0.91)

0.018

0.58 (0.28–1.24)

0.16

HER2

 Negative (n=783)

1

 

1

 

 Positive (n=186)

1.72 (1.08–2.73)

0.023

1.88 (0.89–3.96)

0.096

αB-crystallin

 Negative (n=842)

1

 

1

 

 Positive (n=127)

2.99 (1.83–4.89)

<0.0001

3.15 (1.43–6.95)

0.005

  1. Abbreviations: BCCA, British Columbia Cancer Agency; CI, confidence interval; ER, estrogen receptor; HER2, human epidermal growth factor receptor-2.