Table 1.

A summary of datasets.

Platform	Cancer type	Source	Number of samples	Number of MSI-H samples	Number of MSI-L/MSS samples
RNA-seqa	Colon cancer	TCGA	281	52	229
	Endometrial cancer		367	123	244
	Esophageal cancer		89	2	87
	Gastric cancer		415	80	335
	Rectum cancer		94	3	91
	Uterine cancer		56	2	54
	Pan-cancer		1383	328	1055
Microarray (GPL570)b	Gastric cancer	GSE13911	39	19	20
		GSE62254	300	68	232
	Colorectal cancer	GSE13067	74	11	63
		GSE13294	155	78	77
		GSE18088	53	19	34
		GSE26682	160	18	142
		GSE35896	61	5	56
		GSE39084	70	16	54
		GSE39582	536	77	459
		GSE75316	59	11	48
		GSE92921	58	5	53
Microarray (GPL5175)c		GSE24550	65	14	51
Microarray (GPL2986)d		GSE25071	46	5	41
Microarray (GPL13158)b		GSE27544	22	8	14
Microarray (GPL96)b		GSE26682	140	17	123
		GSE41258	168	35	133

Note:

^aPoly-A.

^bAffymetrix Oligonucleotide Array.

^cAgilent Oligonucleotide Array.

^dAffymetrix Exon Array.