. Author manuscript; available in PMC: 2014 Mar 24.

Published in final edited form as: J Gastrointest Cancer. 2013 Dec;44(4):450–455. doi: 10.1007/s12029-013-9543-1

Table 3.

Clinical features of patients with non-keratinizing and keratinizing anal cancer

	Non-keratinizing (N =27)		Keratinizing (N =15)		P value
Stage	N	%	N	%
I	4	15 %	3	20 %	0.80^a
II	10	37 %	6	40 %
III	8	30 %	5	33 %
IV	3	11 %	1	7 %
Unknown	2	7 %	0	0 %
Outcome
Tumor recurrence +	8	30 %	5	33 %	0.80^b
Tumor recurrence −	19	70 %	10	67 %

Pearson’s chi-square test for difference in local tumors (stage I/II) and advanced tumors (stage III/IV) between patients with keratinizing and non-keratinizing tumors

Pearson’s chi-square test for difference in tumor recurrence between patients with keratinizing and non-keratinizing tumors