BMC Medical Genomics

Table 1 Patient characteristics by training and validation data set.

From: Integrating Factor Analysis and a Transgenic Mouse Model to Reveal a Peripheral Blood Predictor of Breast Tumors

Normal (n = 31)
Category		Training (n = 10)	Validation (n = 21)	p-value
Age (y)				0.5400*
	Mean	55.80	57.81
	Median	55.00	55.00
	Max	75.00	80.00
	Min	44.00	46.00
Gender				N/A
	Female	20	68
	Male	0	0
Race				0.2216†
	White	9	14
	Other	1	7
BI-RADS Score				0.2540‡
	0	0	2
	1	9	13
	2	1	6
	3	0	0
	4	0	0
	5	0	0
	6	0	0
	Incomplete/Unavailable	0	0
Malignant (n = 57)
Category		Training (n = 10)	Validation (n = 47)	p-value
Age (y)				0.6444*
	Mean	61.4	58.68
	Median	56	61
	Max	85	85
	Min	43	32
Gender				N/A
	Female	10	47
	Male	0	0
Race				1.0000†
	White	9	14
	Other	1	7
BI-RADS Score				0.8695‡
	0	0	2
	1	0	2
	2	1	2
	3	0	0
	4	3	16
	5	4	12
	6	0	2
	Incomplete/Unavailable	2	11
HER2				0.2253‡
	Positive	3	5
	Negative	4	18
	Unknown	3	24
ER				0.1036‡
	0 - 2	3	15
	3 - 8	4	6
	Unknown	3	26
PR				0.2844‡
	0 - 2	4	12
	3 - 8	3	8
	Unknown	3	27
Positive Lymph Nodes				0.0685‡
	No LN Sampling	1	23
	0	5	18
	1	1	4
	2	1	1
	3	0	1
	9	1	0

* Mann-Whitney test
† Fisher's exact test
‡ Chi-square test
N/A: Not Applicable

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