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Table 1 Characteristics of healthy volunteers and patients (experimental cohort)

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

  Healthy subjects All patients ER/PR+ ER/PR-
Number 40 39   24   12 3a
Age, yearsb   Diagnosis Analysis Diagnosis Analysis Diagnosis Analysis
   Mean   44 49.9 45.5 51.1 40.9 46.2
   Median 20-70 43 50 46 53 40 45
   Range   28-64 30-67 28-64 30-67 28-56 36-63
Node-positive/
Node-negative
N/A 14/23   8/16   5/7  
Tumor type N/A       
   Pre-invasive   9   5   2  
   Invasive   28   17   10  
Treatment        
   Radiation   24   13   8  
   Chemotherapy   28   16   10  
   Hormone   23   19   2  
  1. aEstrogen receptor/progesterone receptor (ER/PR) status of remaining three patients is unknown. bAges at the time of initial diagnosis and at the time of serum collection for analysis are indicated. Patients in this cohort were clinically disease-free at the time of serum collection. N/A, not available.