Table 1. Correlation of P5CR1 protein level with clinical variables.

Parameters	n	P5CR1 protein
		Expression	P
Gender
Male	16	3.002 ± 2.296	0.397
Female	12	3.753 ± 2.266
Age
≤60	14	3.361 ± 2.341	0.873
>60	14	3.504 ± 2.279
Pathological grading
IA-IIA	14	1.933 ± 1.072	0.000
IIB-IIIB	14	4.937 ± 2.165
Tissue part
R+U	8	4.125 ± 2.416	0.798
R+L	8	3.125 ± 3.091
L+U	6	3.000 ± 1.549
L+L	6	3.333 ± 1.633

Note:

n, number of patients; P, significant level; R+U, right upper lobe; R+L, right lower lobe; L+U, left upper lobe; L+L, left lower lobe.