Table 2. The correlation between Maspin expression and clinical characteristics of patients with lung adenocarcinoma.

	Cases (N=75)			Maspin high expression (N=23)			Maspin low expression (N=52)		P value
	No.	%		No.	%		No.	%
Age									0.572
≥59 years	40	53.33		13	56.52		27	51.92
<59 years	34	45.33		9	39.13		25	48.08
Deletion*	1	1.33		1	4.35		0	0
Gender									0.326
Male	39	52		10	43.48		29	55.77
Female	36	48		13	56.52		23	44.23
Pathological staging									0.008*
I	10	13.33		7	30.43		3	5.77
II–III	61	81.33		14	60.87		47	90.38
Deletion*	4	5.33		2	8.7		2	3.85
Tumor size									<0.001*
T1	21	28		15	65.22		6	11.54
T2	42	56		8	34.78		34	65.38
T3	8	10.67		0	0		8	15.38
T4	4	5.33		0	0		4	7.69
TNM classification									<0.001*
I	34	45.33		19	82.61		15	28.85
II–III	28	37.33		1	4.35		27	51.92
Deletion*	13	17.33		3	13.04		10	19.23

*, P<0.05.