Table 1. Information on lung adenocarcinoma cohorts from public datasets used in this study.

Source	Dataset number	No. of LUAD tissues	No. of adjacent non-tumor tissues	No. of patients who received adjuvant chemotherapy	With clinical survival information or not	With molecular subtype or not	References
TCGA	TCGA-LUAD	515	59	159	Yes	No	–
GEO	GSE10072	58	49	–	No	No	12
	GSE18842	46	45	–	No	No	13
	GSE33479	13	27	–	No	No	14
	GSE33532	80	20	–	No	No	–
	GSE11969	148	–	–	Yes	No	15
	GSE13213	117	–	–	Yes	No	16
	GSE26939	116	–	–	Yes	Yes	17
	GSE68465	443	–	85	Yes	No	18
	GSE72094	442	–	–	Yes	No	19
	GSE58772	58	–	–	No	Yes	20