Table 4 Relationships between ERα and ERβ1 as assessed by immunohistochemistry (IHC) and RT–PCR

From: Wild-type oestrogen receptor beta (ERβ1) mRNA and protein expression in Tamoxifen-treated post-menopausal breast cancers

 

ERα IHC

 

A

 

neg.

pos.

Chi-square (P)

ERβ1 IHC

neg.

4

16

1.6 (0.21)

 

pos.

40

77

 
 

ER α RT–PCR

 

B

 

neg.

pos.

Chi-square (P)

ERα IHC

neg.

33

12

47 (<0.0005)

 

pos.

9

67

 

ERβ1RT-PCR

neg.

23

18

12 (<0.0005)

 

pos.

21

65

 

ERβ1 IHC

neg.

3

8

0.23 (0.64)

 

pos.

31

59

 
 

ER β 1RT–PCR

 

C

 

neg.

pos.

Chi-square (P)

ERα status

neg.

20

25

4.9 (0.027)

 

pos.

19

57

 

ERβ1 IHC

neg.

4

7

0.08 (0.78)

 

pos.

29

61

 
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