Table 2.

Correlations between LDH-C4 protein expressions and clinical characteristics in LUAD patients.

Clinicopathological features	Total case size(n = 92)	LDH-C4 low(n = 16)		LDH-C4 high(n = 76)		χ2 value	p-value
Gender						0.704	0.402
Male	49	7		42
Female	43	9		34
Age (years)						2.216	0.137
>60	42	10		32
≤60	50	6		44
T stage						0.000	1.000
T1–T2	69	12		57
T3–T4	23	4		19
Lymphatic metastasis						0.654	0.419
N0–N1	53	10		43
N1–N2	22	6		16
Nx	17
Clinical stage						0.222	0.638
Stage I+II	43	10		33
Stage III+IV	32	6		26
EGFR mutation						0.103	0.749
Negative	73	13		60
Positive	14	2		11
Unclear information	5
ALK mutation						0.085	0.771
Negative	77	13		64
Positive	15	3		12

The final score of LDH-C4 expression is the product of score and intensity.