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Table 4 Comparison between MG and US for agreement rates for lesion size and location

From: Limitations of mammography in the diagnosis of breast diseases compared with ultrasonography: a single-center retrospective analysis of 274 cases

Variable Lesion size   Lesion location  
  MG US P value MG US P value
All 131/274 (47.8%) 217/274 (79.2%) <0.001 128/274 (46.7%) 250/274 (91.2%) <0.001
Age ≤45 55/129 (42.6%) 100/129 (77.5%) <0.001 52/129 (40.3%) 116/129 (89.9%) <0.001
Age >45 76/145 (52.4%) 117/145 (80.7%) <0.001 76/145 (52.4%) 134/145 (92.4%) <0.001
Premenopausal 82/185 (44.3%) 144/185 (77.8%) <0.001 81/185 (43.8%) 167/185 (90.3%) <0.001
Postmenopausal 49/89 (55.1%) 73/89 (82%) <0.001 47/89 (52.8%) 83/89 (93.3%) <0.001
Low breast density 74/133 (55.6%) 109/133 (82.0%) <0.001 67/133 (50.4%) 123/133 (92.5%) <0.001
High breast density 57/141 (40.4%) 108/141 (76.6%) <0.001 61/141 (43.3%) 127/141 (90.1%) <0.001
Lesion <2 cm 46/122 (37.7%) 102/122 (83.6%) <0.001 43/122 (35.2%) 111/122 (91.0%) <0.001
Lesion 2.1 to 5 cm 79/135 (58.5%) 108/135 (80.0%) <0.001 74/135 (54.8%) 123/135 (91.1%) <0.001
Lesion >5 cm 6/17 (35.3%) 7/17 (41.2%) 0.724 11/17 (64.7%) 16/17 (94.1%) 0.09
  1. MG, mammography; US, ultrasonography.