Table 3 Association of the difference in estrogen receptor staining between the core biopsy and resection specimens with cold ischemia time using 2 h as the cutoff for cold ischemia time

From: The effect of prolonged cold ischemia time on estrogen receptor immunohistochemistry in breast cancer

Groups

Cold ischemia time

P-value (Fisher’s exact test)

 

Less than 2 h (n=58)

Greater than 2 h (n=39)

 

No change

48

30

0.60

Change

10

9

 

No change

48

30

0.03a

Increase

8

2

 

Decrease

2

7

 
  1. aIn pair-wise comparison of the three groups, a P-value between 0.016 and 0.05 was considered a trend.
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