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Table 1
Data sets analyzed in this study
Data set	Total	ER+	ER-	Survival	Reference

GSE1456	159	99	40	RFS	[13]
GSE2603	82	57	42	DMFS	[14]
GSE3494	236	213	34	DMFS	[15]
GSE6532	306	262	45	DMFS	[16,17]
GSE7378	54	54	0	DMFS	[18]
GSE7390	198	134	64	DMFS	[19]
GSE11121	129	200	0	RFS	[20]
E-TABM-158	344	84	46	DMFS	[21]

Total	1418	1103	271

Kim BMC Bioinformatics 2009 10:147 doi:10.1186/1471-2105-10-147

Table 1