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Table 3 Correlation of tumor diameter in histology, Ultrasound and mammography

From: The impact of breast cancer biological subtyping on tumor size assessment by ultrasound and mammography - a retrospective multicenter cohort study of 6543 primary breast cancer patients

Correlation overall Correlation coefficient N
Histology – Ultrasound 0.5981 5902
Histology – Mammography 0.605 4230
Ultrasound – Mammography 0.7369 3757
Correlation in ductal invasive cancer   
Histology – Ultrasound 0.6045 4257
Histology – Mammography 0.6157 3132
Ultrasound – Mammography 0.7319 2784
Correlation in lobular invasive cancer   
Histology – Ultrasound 0.5209 737
Histology – Mammography 0.5271 474
Ultrasound – Mammography 0.7012 424
Correlation for pT1   
Histology – Ultrasound 0.3178 3450
Histology – Mammography 0.2528 2408
Ultrasound – Mammography 0.5922 2121
Correlation for pT2   
Histology – Ultrasound 0.3938 2265
Histology – Mammography 0.3864 1693
Ultrasound – Mammography 0.6349 1534
Correlation for pT3   
Histology – Ultrasound 0.1344 187
Histology – Mammography 0.1989 129
Ultrasound – Mammography 0.5527 102
Correlation for endocrine non-responsive cancer (HR negative)   
Histology – Ultrasound 0.6427 848
Histology – Mammography 0.5252 599
Ultrasound – Mammography 0.7436 538
Correlation for incomplete endocrine responsive cancer (HR positive)   
Histology – Ultrasound 0.5212 1224
Histology – Mammography 0.5781 930
Ultrasound – Mammography 0.7092 811
Correlation for highly endocrine responsive cancer (HR positive)   
Histology – Ultrasound 0.6124 3817
Histology – Mammography 0.6334 2693
Ultrasound – Mammography 0.7407 2401
Correlation for HER2/neu positive cancer   
Histology – Ultrasound 0.6345 797
Histology – Mammography 0.4375 565
Ultrasound – Mammography 0.7408 507
Correlation for HER2/neu negative cancer   
Histology – Ultrasound 0.5958 4587
Histology – Mammography 0.6466 3278
Ultrasound – Mammography 0 0.7332 2956
Correlation for patients aged <50 years   
Histology - Ultrasound 0.4658 1295
Histology - Mammography 0.5158 808
Ultrasound - Mammography 0.6922 729
Correlation for patients aged 50–70 years   
Histology - Ultrasound 0.5970 3042
Histology - Mammography 0.5809 2210
Ultrasound - Mammography 0.7250 1941
Correlation for patients aged >70 years   
Histology - Ultrasound 0.6700 1563
Histology - Mammography 0.6752 1211
Ultrasound - Mammography 0.7583 1086
  1. Correlations with histology are shown for pairwise data, whereas correlations between Ultrasound and mammography required complete datasets