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Table 1 Patient and tumor characteristics

From: Luminal B breast cancer subtype displays a dicotomic epigenetic pattern

	Subtype
	Luminal A		Luminal B-Her2		Luminal B		LumB versus LumA	LumB versus LumB-HER2
	Count	Proportion	Count	Proportion	Count	Proportion	LumB versus LumA	LumB versus LumB-HER2
Histological grade
II	8	1	2	0.5	13	0.76	0.269^a	0.316^a
III	0	0	2	0.5	4	0.24
Tumor size
<1 cm	3	0.375	1	3	10	0.58	0.659^a	0.311^a
≥2 cm	5	0.625	3	8	7	0.42
Node involvement
Negative	3	0.42	1	0.25	8	0.47	1^a	0.603^a
Positive	4	0.58	3	0.75	9	0.53
Ki-67
Mean	10 %		50 %		43 %		0.0001^b	0.362^b
SD	4 %		22 %		23 %
PgR status
Negative	0	0	1	0.25	10	0.58	0.008^a	0.311^a
Positive	8	1	3	0.75	7	0.42

^aChi squared test
^bMann–Whitney U test

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