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Table 5 Comparison of Aluminum concentration in central and peripheral regions of the tumors, and normal breast tissue

From: Aluminum concentrations in central and peripheral areas of malignant breast lesions do not differ from those in normal breast tissues

Aluminum concentration per tumor region (mg/kg)

 

Central

Peripheral

Normal

 

Mean

1.88

2.10

1.68

p-value*

Standard deviation

3.60

5.67

11.1

0.88

 

Cancer regions grouped

Normal

 

Mean

1.99

1.68

p-value*

Standard deviation

3.46

11.1

0.74

Two-by-two comparisons of the tumor regions

Mean difference

p-value*

 

Central-Peripheral

0.67

0.96

 

Central-Normal

0.83

0.97

 

Peripheral-Normal

0.67

0.87

 
  1. *Paired t-tests were used to evaluate the within-individual variations in Aluminum concentrations. Log-transformed (to base e) data were used (see statistics section) in order to conform to normality.