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Table 2 Spearman correlation coefficients between age, BMI, PD and texture features

From: A novel and fully automated mammographic texture analysis for risk prediction: results from two case-control studies

  Age BMI Volumetric PD Sum average 16 Sum average 32 Sum average 64 SD Coarseness Contrast
Age 1         
BMI 0.03 1        
Volumetric PD -0.14 -0.57 1       
Sum average 16 -0.19 -0.35 0.63 1      
Sum average 32 -0.23 -0.33 0.63 0.81 1     
Sum average 64 -0.18 -0.23 0.54 0.74 0.88 1    
SD -0.16 -0.19 0.46 0.27 0.32 0.31 1   
Coarseness -0.12 -0.62 0.79 0.49 0.58 0.51 0.53 1  
Contrast 0.15 0.34 -0.74 -0.45 -0.52 -0.52 -0.64 -0.80 1
  1. Sum average 16, 32 and 64 are texture feature sum average using images downsized by a factor of 16, 32 and 64
  2. PD percent density, BMI body mass index, SD standard deviation