Table 2. Correlation between expressions of PTEN and Ki67 in NSCLC with clinicopathologic features.

	N		PTEN						Ki67
		+	-	Positive expression (%)	P-value		+	-	Positive expression (%)	P-value
Age (years)
≤60	30	11	19	36.67	0.548		21	9	70.00	0.290
> 60	37	11	26	29.73			30	7	81.08
Sex
Male	33	10	23	30.30	0.664		26	7	78.79	0.614
Female	34	12	22	35.29			25	9	73.53
Tumor position
Periphery type	40	10	30	25.00	0.096		31	9	77.50	0.747
Central type	27	12	15	44.44			20	7	74.07
Tumor size (cm)
≤3	35	13	22	37.14	0.432		24	11	68.57	0.130
> 3	32	9	23	28.13			27	5	84.38
Tumor category
Squamous cancer	28	5	23	18.71			19	9	67.9
Adenocarcinoma	31	12	19	38.70	0.014		25	6	80.65	0.037
Large cell carcinoma	8	3	5	37.50			5	3	62.50
Lymph metastasis
Yes	29	5	24	17.24	0.018		31	9	77.5	0.023
No	38	17	21	44.74			8	9	47.0
TNM Stage
I,II	49	22	27	44.90	0.038		30	19	61.22	0.043
III	18	6	12	33.33			14	4	77.8
Differentiation degree
Low	25	5	20	20.00	0.007		23	2	92.00	0.020
High/moderate	42	19	23	45.24			28	14	66.67