Table 4.

χ2 correlation of traditional markers and clusters

MarkerHigh cluster n (%)Low cluster n (%)P
Node positive217 (57)94 (40)<0.0001
Size > 2 cm348 (58)94 (43)0.0004
High nuclear grade120 (33)45 (21)0.0019
HER2 3+78 (21)29 (14)0.0529
Estrogen receptor negative181 (48)98 (46)0.6989
Age > 50 y168 (72)271 (71)0.8082
Lobular27 (12)26 (25)0.0017
  • NOTE: Values represent the number (%) of tumors with the given traditional marker phenotype (left column) in the given cluster. Statistically significant values are in boldface.