Table 2. The Bmi-1 and p-AMPK expression in different stages of lung cancer.

stage	Total	p-AMPK				p value	Bmi-1				p value
	(n = 65)	−	+	++	+++		−	+	++	+++
I	22	4	5	10	3	< 0.05	3	12	6	1	< 0.05
II	27	5	10	9	3		1	9	11	6
III	16	9	6	1	0		0	5	4	7