Table 2.

The correlation of VM with the clinicopathological parameters of lung adenocarcinoma.

Variants	VM
	Negative	Positive	χ2	p-value
Sex
Male	76	17	0.058	0.81
Female	61	15
Age (years)
<65	91	18	1.172	0.279
≥65	46	14
Tumor size (cm)
<5	99	20	3.242	0.072
≥5	28	12
Grade
I + II	101	19	5.607	0.018
III + IV	36	13
Metastasis
No	108	12	21.526	0.000
Yes	29	20

P < 0.05 was statistically significant.