Increased PPARD Expression May Play a Protective Role in Human Lung Adenocarcinoma and Squamous Cell Carcinoma

Table 1

Key descriptors of 20 LA/LSCC RNA expression datasets selected for this study.

GEO ID	Disease name	controls	cases	Sampled population (country)	Time factor	Sample source
GSE7670	LA	28	27	Taiwan	13	Adenocarcinoma/normal lung
GSE68465	LA	4	443	USA	5	Adenocarcinoma/normal lung
GSE67061	LSCC	8	69	China	3	LSCC/normal airway epithelium cells
GSE63459	LA	32	33	USA	5	Adenocarcinoma/normal lung
GSE6044	LSCC	5	14	Germany	13	LSCC/normal lung
GSE51852	LA	4	49	Japan	6	Adenocarcinoma/normal lung
GSE46539	LA	92	92	Taiwan	4	Adenocarcinoma/normal lung
GSE43458	LA	30	80	USA	7	Adenocarcinoma/normal lung
GSE40791	LA	90	94	USA	7	Adenocarcinoma/normal lung
GSE33479	LSCC	27	14	USA	5	LSCC/normal bronchus
GSE32867	LA	58	58	USA	8	Adenocarcinoma/normal lung
GSE32036	LSCC	59	12	USA	7	NSCLC/SCLC cell lines
GSE31547	LA	20	30	USA	9	Adenocarcinoma/normal lung
GSE30219	LSCC	14	61	France	5	LSCC/normal lung
GSE19188	LSCC	65	27	Netherlands	9	LSCC/normal lung
GSE12472	LSCC	28	35	Netherlands	10	COPD bronchus/LSCC lung
GSE12428	LSCC	28	34	Netherlands	11	Normal bronchial/LSCC lung
GSE11969	LSCC	5	35	Japan	10	Adenocarcinoma/normal lung
GSE118370	LA	6	6	China	1	Adenocarcinoma/normal lung
GSE10072	LA	49	58	USA	12	Adenocarcinoma/normal lung

Note: “time factor” refers to the age of the dataset, which is defined by the current year–the publication year of the dataset.