Persistent upregulation of U6:SNORD44 small RNA ratio in the serum of breast cancer patients

Breast Cancer Research

Table 2 Characteristics of healthy volunteers and patients with breast cancer during diagnosis and experimental analysis (cohort 2)

	Healthy subjects	All patients		Non-metastatic		Metastatic
Number	15	29	1^a	15		14	1^a
Age, years^b		Diagnosis	Analysis	Diagnosis	Analysis	Diagnosis	Analysis
Mean	53.26	46	52.06	48.06	52.13	43.78	52
Median	53	45	51	48	51	42	53
Range	47-69	23-75	23-80	38-71	46-76	23-75	23-80
Treatment
Radiation		18		8		10
Chemotherapy		19		9		10
Hormone		13		6		7
Only ER⁺/PR⁺ patients		Total		Non-metastatic		Metastatic
Number		23		13		10
Age, years		Diagnosis	Analysis	Diagnosis	Analysis	Diagnosis	Analysis
Mean		46.34	52.08	48.69	52.38	43.3	51.7
Median		47	51.0	48	51	42	51
Range		23-75	23-80	38-71	46-76	23-75	23-80

^aAge and metastatic status of patient are unknown. ^bAges at the time of initial diagnosis and at the time of serum collection for analysis are indicated. ER, estrogen receptor; PR, progesterone receptor.

ISSN: 1465-542X