Ki-67 Antigen Overexpression Is Associated with the Metaplasia-Adenocarcinoma Sequence in Barrett's Esophagus

Table 1

Demographic data from patients whose tissue was used to investigate the relationship between expression of the antigen Ki-67 and stages within the metaplasia-adenocarcinoma sequence.

	Group 1 (control)	Group 2 (BE)	Group 3 (cancer)	Total	𝑃 value
	𝑛=17	𝑛=21	𝑛=19	𝑛=57
Age (mean ± SD)	55.7±12.1	52.52±20.28	62.89±13.54	56.26±16.48	𝑃=0.082
Gender (%)
Men	8 (47)	9 (42.9)	15 (78.9)	32 (56.1)	𝑃=0.048^∗
Women	9 (52.9)	12 (57.1)	4 (21.1)	25 (43.9)
Race
Caucasian	16 (94.1)	18 (85.7)	19 (100)	53 (93)	𝑃=0.20
Black	1 (5.9)	3 (14.3)	0 (0)	4 (7)

^*Patients with cancer were more likely to be men.
BE: Barrett’s esophagus.