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Table 1 Donor characteristics by breast sample batch

From: A risk-associated Active transcriptome phenotype expressed by histologically normal human breast tissue and linked to a pro-tumorigenic adipocyte population

Characteristic

F batch

P batch

p valuea

N = 96

N = 55

Age at biopsy (years)

  

.73

 Mean

44.75

45.36

 

Age at menarche (years)

  

.73

 Mean

12.57

12.49

 

Parity (live births)

  

.21

 Mean

2.18

2.00

 

Age at first birth (years)

  

.04

 Mean

27.56

25.82

 

BMI (kg/m2)

  

.31

 Mean

30.32

28.87

 

Family historyb

  

.76

 Percent positive

25.0%

23.62%

 

Gail 5 year risk scores

  

.51

 Mean

1.34%

1.17%

 
  1. ap value is the chi-squared p value for difference in means between samples
  2. bAt least one first-degree relative with breast cancer