Table 2.

Relationship between SBP1 expression and clinicopathological factors in lung squamous cell cancer

Variables	n	Score			P value
		Low (0–2)	Moderate (3–4)	High (5–6)
Age, years
<55	29	19	8	2	0.779
≥55	37	23	10	4
Gender
Male	34	22	9	3	0.852
Female	32	20	9	3
Smoking
Smoking	41	25	12	4	0.565
Non-smoking	25	17	6	2
TNM clinical stage
I–II	21	9	7	5	0.165
III–IV	45	33	11	1
Primary tumor (T) stage
T1–T2	37	27	7	3	0.075
T3–T4	29	15	11	3
Regional lymph node metastasis (N)
N0	29	14	10	5	0.022*
N1, N2, N3	37	28	8	1
Distant metastasis (M)
M0	52	30	16	6	0.053
M1	14	12	2	0

*P < 0.05 by χ ² test