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Table 5 Inter-reader agreement between the readers for assessment of BPE, change in BPE, FGT, and change in FGT on MRI

From: MRI background parenchymal enhancement, fibroglandular tissue, and mammographic breast density in patients with invasive lobular breast cancer on adjuvant endocrine hormonal treatment: associations with survival

 

R1

R2

R3

R4

R1

n = 245

n = 243

n = 245

n = 244

 BPE

1.00

0.63

0.69

0.62

 Change in BPE

1.00

0.57

0.55

0.52

 FGT

1.00

0.69

0.77

0.74

 Change in FGT

1.00

0.47

0.40

0.42

R2

n = 243

n = 243

n = 243

n = 242

 BPE

0.63

1.00

0.62

0.55

 Change in BPE

0.57

1.00

0.59

0.51

 FGT

0.69

1.00

0.69

0.68

 Change in FGT

0.47

1.00

0.45

0.29

R3

n = 245

n = 243

n = 245

n = 244

 BPE

0.69

0.62

1.00

0.62

 Change in BPE

0.55

0.59

1.00

0.49

 FGT

0.77

0.69

1.00

0.71

 Change in FGT

0.40

0.45

1.00

0.33

R4

n = 244

n = 242

n = 244

n = 244

 BPE

0.62

0.55

0.62

1.00

 Change in BPE

0.52

0.51

0.49

1.00

 FGT

0.74

0.58

0.71

1.00

 Change in FGT

0.41

0.29

0.33

1.00

  1. n denotes the number of observations
  2. Abbreviations: BPE background parenchymal enhancement, FGT fibroglandular tissue