Table 5

- Issues of differences in the feature assignment reported By Rater 1 and Rater 2.

MammographyRater (n=52)P-values
Rater 1Rater 2
Density
Hypo-1 (1.9)0 (0.0) 
Iso-42 (77.8)31 (58.5)0.025*
Hyper-11 (20.4)22 (41.5) 
Shape (n=24)
Oval7 (29.2)13 (54.2)0.041**
Round11 (45.8)4 (16.7)0.044**
Irregular6 (25.0)7 (29.1)0.124**
Ultrasound (n=54)
Echo
Hypo-36 (66.7)43 (76.8) 
Iso-1 (1.9)3 (7.1)0.264*
Mixed17 (31.5)11 (16.1) 
Vascularity (n=24)20 (83.3)3 (12.5)0.017**
Borders (n=54)
Circumscribed13 (24.1)24 (44.4)0.046**
Indistinct13 (24.1)18 (33.3)0.102**
Angular23 (42.6)1 (1.9)0.015***
Micro-lobular29 (53.7)21 (38.9)0.048**
Spiculated2 (3.7)1 (1.9)0.214***
Anti-parallel7 (13.9)3 (5.6)0.084***

Values are presented as numbers and percentages (%).

  • ↵* Monte Carlo exact test was used to compare the frequency differences between groups.

  • ↵** The Chi-square test was used to compare the frequency differences between groups.

  • ↵*** Fisher’s exact test was used to compare the frequency differences between groups.