Table 1.

Correlation between expression of PTEN, p27 and tumor recurrence (No. of patients)

Clinical features	Total No.	PTEN+	χ2	P	p27+	χ2	P
Total No.	131	64			57
Differentiation
Well-moderately Differentiated	100	46	1.378	0.240	40	2.120	0.145
Poorly-differentiated	31	18			17
TNM staging
Stage T1a	88	39	2.208	0.137	40	0.412	0.521
Stage T1b	43	25			17
Prognosis
Recurrence	20	2	12.485	0.000	4	4.240	0.039
Non recurrence	111	62			53