Table 2.

P53 immunopositivity in mucosa adjacent to ITAC and controls and comparison to the literature.

	This study						[11]
	Tumor	Tumor	Adjacent	Adjacent	Control	Control	Tumor	Tumor	Adjacent	Adjacent	Control	Control
Wood exposure	Yes	No	Yes	No	Yes	No	Yes	No	Yes	No	Yes	No
Number of samples	45	6	45	6	17	2	10	5	10	5	68	81
Overall	68% (n = 33)	27% (n = 4)	24% (n = 22)	27% (n = 2)	35% (n = 1)	0%	69%	15–28%	12%	1%	12%	2%
Dysplasia			17% (n = 1)	0%	0%	0%
Metaplasia cuboidal			17% (n = 1)	0%	35% (n = 1)	0%
Metaplasia squamous			37% (n = 6)	37% (n = 1)	0%	0%					28%	8%
Hyperplasia			27% (n = 2)	0%	0%	0%
Respiratory epithelium			21% (n = 12)	17% (n = 1)	0%	0%
Seromucinous glands			24% (n = 22)	27% (n = 2)	NA	NA					12%	1%

P53 immunopositivity is presented as the mean % of positive cells calculated from the cases that showed some positivity (the number of cases is given between brackets). NA: not applicable for lack of representation.