Table 1. CDK9 staining in matched samples of Barrett's Esophagus and esophageal adenocarcinoma (n=10).

	Percentage of cells with CDK9 staining intensity				p value
		0, mean (range)	1, mean (range)	2, mean (range)	3, mean (range)
BE surface	48 (12-90)	17 (0-44)	25 (6-43)	10 (0-48)	<0.01*
BE upper half	21 (1-57)	16 (0-35)	36 (22-48)	27 (10-75)	<0.01**
BE lower half	3 (0-7)	7 (0-23)	19 (6-34)	73 (31-94)
BE total	23 (4-51)	15 (1-45)	25 (14-34)	37 (16-71)	<0.01***
Invasive adenocarcinoma	0	0	10 (0-15)	90 (80-100)

*p value for for intensity 0, 2, and 3 compared between surface and upper 1/2. p value for staining intensity 1 between surface and upper half of cryptis 0.39

** p value for for intensity 0,1, 2, and 3 compared between upper 1/2 and lower 1/2 of the crypt of BE

*** p value for intensity o,1,2,3 between invasive adenocarcinoma and total BE.