Table 1. The significant change of IDs expression in different types of lung cancer (Oncomine database).

	Dataset	Types of lung cancer versus lung	Sample	Fold change	P-value	t-test
ID1	Bhattacharjee	Lung adenocarcinoma versus normal	149	-11.038	5.25E-7	-6.259
		Small cell lung carcinoma versus normal	23	-11.150	1.25E-5	-6.055
		Lung carcinoid tumor versus normal	37	-45.049	2.28E-9	-7.724
	Beer	Lung adenocarcinoma versus normal	96	-5.242	1.10E-8	-6.132
	Su	Lung adenocarcinoma versus normal	66	-3.186	1.51E-7	-6.099
	Landi	Lung adenocarcinoma versus normal	107	-2.364	4.98E-12	-7.718
	Selamat	Lung adenocarcinoma versus normal	116	-3.080	9.60E-16	-9.481
	Okayama	Lung adenocarcinoma versus normal	246	-2.652	1.57E-9	-8.345
ID2	Selamat	Lung adenocarcinoma versus normal	116	-3.864	5.22E-27	-14.089
	Beer	Lung adenocarcinoma versus normal	96	-2.231	3.90E-7	-6.616
	Bhattacharjee	Lung adenocarcinoma versus normal	203	-4.723	2.09E-5	-5.185
	Su	Lung adenocarcinoma versus normal	66	-2.050	2.14E-7	-5.852
	Hou	Squamous cell lung carcinoma versus normal	156	-2.485	2.38E-11	-9.385
ID3	Selamat	Lung adenocarcinoma versus normal	116	-4.415	1.21E-27	-14.460
	Landi	Lung adenocarcinoma versus normal	107	-2.116	3.96E-16	-9.520
	Su	Lung adenocarcinoma versus normal	66	-3.906	1.50E-6	-5.575
	Okayama	Lung adenocarcinoma versus normal	246	-2.638	1.62E-11	-10.739
ID4	Okayama	Lung adenocarcinoma versus normal	246	-4.115	1.48E-28	-17.724
	Beer	Lung adenocarcinoma versus normal	96	-4.988	7.24E-10	-7.656
	Landi	Lung adenocarcinoma versus normal	107	-3.754	6.51E-25	-13.467
	Su	Lung Adenocarcinoma versus Normal	66	-3.259	5.44E-11	-8.206
	Garber	Lung Adenocarcinoma versus Normal	45	-2.495	4.65E-6	-6.296
		Squamous Cell Lung Carcinoma versus Normal	19	-3.193	7.94E-5	-4.885
	Stearman	Lung adenocarcinoma versus normal	39	-2.478	1.50E-7	-6.829
	Hou	Lung adenocarcinoma versus normal	110	-5.899	1.42E-15	-10.443
		Squamous cell lung carcinoma versus normal	92	-7.876	3.49E-18	-14.320