Table 1.

Summary of the general clinical information of patients with lung adenocarcinoma.

Clinicopathologic variable	Category	TCGA LUAD
Sample type	H&E stained sections	427
Age	<=50 >50 NA	33 379 15
Cigarettes_per day	<2 >=2 NA	140 157 130
Tumor stage	I II III IV NA	238 102 55 25 7