. Author manuscript; available in PMC: 2010 Sep 1.

Published in final edited form as: Cancer Epidemiol Biomarkers Prev. 2009 Aug 18;18(9):2391–2396. doi: 10.1158/1055-9965.EPI-08-1098

Table 2.

Any versus no gene expression, by family history of upper gastrointestinal tract (UGI) cancer, in the esophageal cell samples

Gene		With a Family History of UGI Cancer N (column %)	Without a Family History of UGI Cancer N (column %)
AhR	No Expression	20 (31%)	42 (51%)
	Expression	44 (69%)	41 (49%)
AhRR	No Expression	52 (81%)	70 (84%)
	Expression	12 (19%)	13 (16%)
Cyp1a1	No Expression	56 (88%)	78 (94%)
	Expression	8 (12%)	5 (6%)
Cyp1b1	No Expression	57 (89%)	76 (92%)
	Expression	7 (11%)	7 (8%)

Pearson's Chi-square test AhR p=0.02; p>0.2 for all other genes