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Table 1 Distribution of 54,997 screening examinations by BI-RADS density score by MTR marker, Denmark, 2012–2013

From: Sensitivity of screening mammography by density and texture: a cohort study from a population-based screening program in Denmark

MTR BI-RADS Total Percentage
1 2 3 4
1 10,256 3569 217 55 13,652 25
2 3618 7912 2000 122 13,640 25
3 1430 6072 5257 881 13,608 25
4 340 4211 7352 1705 14,097 26
Total 15,644 21,764 14,826 2763 54,997 100
Percentage 28 40 27 5 100  
  1. Chi-square = 43,255.71 with a p value < 0.00001 at df = 9