Research Article

The Prognosis and Predictive Value of Estrogen Negative/Progesterone Positive (ER−/PR+) Phenotype: Experience of 1159 Primary Breast Cancer from a Single Institute

Table 2

The clinicopathological characteristics of the four ER/PR profiles of included patients.

ER+/RP+ (58.4%)ER+/RP− (7.6%)ER−/RP− (14.2%)ER−/RP+ (8.1%) value

Characteristics
 Age groups at diagnosis
  ≤50 years369 (55.4%)36 (41%)77 (49.7%)48 (51.1%)
  >50 years297 (44.6%)52 (60%)78 (50.3%)46 (48.9%)

 Grade
  178 (11.7%)7 (8%)2 (1.3%)10 (10.6%)
  2368 (55.3%)41 (46.6%)55 (33.5%)32 (34%)
  3165 (24.8%)31 (35.2%)87 (56.1%)47 (50%)
  NA(8.2%)10.2%9%5.4%

 Tumor size
  ≤2 cm185 (36.3%)22 (33.8%)30 (24.2%)18 (28.6%)
  >2 cm305 (59.8%)42 (64.6%)89 (71.8%)43 (68.3%)
  NA3.9%1.6%4%3%

 Lymph node status
  Positive301 (45%)38 (43%)57 (40.2%)29 (31.2%)
  Negative142 (21.24%)23 (26.1%)53 (36.8%)23 (24.5%)
  NA66.2%31%23%44%

 PtT149 (22.1%)17 (19.3%)29 (17.7%)15 (16%)
  T2243 (36.1%)32 (36.4%)76 (46.3%)27 (28.7%)
  T333 (5%)8 (9.1%)9 (5.5%)7 (7.4%)
  T427 (4%)5 (5.7%)5 (3%)7 (7.4%)
  NA32%29.5%27.5%40.5%

 HER2 status
  Negative467 (20.7%)48 (38.6%)97 (31.6%)54 (34%)
  Positive138 (70.6%)33 (53.4%)49 (62%)33 (59.6%)
  NA8.7%8%6.4%6.4%

 KI67
  ≤20%155 (28.6%)16 (29.1%)19 (17.9%)11 (16%)
  >20%387 (72%)39 (70.9%)87 (82.1%)65 (84%)

NA: not available.