Table 3.

Relationships between ALDH1 or TGFβ2 protein staining intensity and tumor histologic grade

Staining intensity	ALDH1				TGFβ2
	n	I-II	III	P value	n	I-II	III	P value
-	22	18	4	0.039*	21	17	4	0.004*
+	14	6	8		10	7	3
++	24	13	11		30	14	16
+++	5	2	3		4	1	3
Total	65	39	26	-	65	39	26	-

^* P<0.05.