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Table 2 Immunohistochemical staining results (N: sample size)

From: Progesterone receptor does not improve the performance and test effectiveness of the conventional 3-marker panel, consisting of estrogen receptor, vimentin and carcinoembryonic antigen in distinguishing between primary endocervical and endometrial adenocarcinomas in a tissue microarray extension study

  

ECA (N = 14)

EMA (N = 24)

p-value

PR

Score 0–3

11 (78.6%)

10 (41.7%)

.027a

 

Score 4–12

3 (21.4%)

14 (58.3%)

 
 

Median (Range)

0.00 (0–9)

5.00 (0–12)

.002b

ER

Score 0–3

12 (85.7%)

6 (25.0%)

< 0.001a

 

Score 4–12

2 (14.3%)

18 (75.0%)

 
 

Median (Range)

0.50 (0–6)

6.00 (0–12)

< 0.001b

Vim

Score 0–3

13 (92.9%)

8 (33.3%)

< 0.001a

 

Score 4–12

1 (7.1%)

16 (66.7%)

 
 

Median (Range)

0.00 (0–6)

6.00 (0–12)

< 0.001b

CEA

Score 0–3

4 (28.6%)

20 (83.3%)

.001a

 

Score 4–12

10 (71.4%)

4 (16.7%)

 
 

Median (Range)

5.00 (1–12)

2.00 (0–9)

< 0.001b

  1. 1. Note: the a is chi-square test with continuity correction or Fisher's exact test, the b is the Mann-Whitney U test using exact significance
  2. 2. Using a score of ≧ 4 points as a cutoff, the immunostains are defined as "negative" for scores from 0 to 3, and "positive" for scores from 4 to 12 points.