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Table 1 Patients and tumor characteristics

From: Potential prognostic value of heat-shock protein 90 in the presence of phosphatidylinositol-3-kinase overexpression or loss of PTEN, in invasive breast cancers

Characteristics Number of patients (%)
Age (years)   
   <40 33 (15.6)
   ≥40 179 (84.4)
Histology   
   Invasive ductal 205 (96.7)
   Invasive lobular 7 (3.3)
Tumor stage   
   T1--T2 199 (93.9)
   T3--T4 13 (6.1)
Nodal stage   
   N0 106 (50.0)
   N1--N3 106 (50.0)
Histologic grade   
   Grade I--II 116 (54.7)
   Grade III 89 (42.0)
ER   
   Negative 70 (33.0)
   Positive 142 (67.0)
PR   
   Negative 113 (53.3)
   Positive 99 (46.7)
HER2   
   Negative 168 (79.2)
   Positive 44 (20.8)
Ki-67 index   
   <10% 120 (56.6)
   ≥10% 91 (42.9)
  1. ER = estrogen receptor; HER2 = human epidermal growth factor receptor-2; PR = progesterone receptor.