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Table 1 Patients and tumors’ characteristics

From: High EGFR protein expression and exon 9 PIK3CA mutations are independent prognostic factors in triple negative breast cancers

  Number of patients (%)
  204 100
Age
 Median, range 56 29–86
 <55 years 98 48.0
 ≥55 years 106 52.0
T   
 T1 84 41.2
 T2 97 47.5
 T3 10 4.9
 T4 13 6.4
N
 N0 132 64.7
 N1 46 22.5
 N2 18 8.8
 N3 8 3.9
Histology
 Ductal 163 79.9
 Lobular 13 6.4
 Othera 28 13.7
SBR-EE grade
 1 9 4.5
 2 60 29.9
 3 132 65.7
 NE 3  
Adjuvant chemotherapy
 No 60 29.7
 Yes 142 70.3
 Missing 2  
  1. a6 invasive papillary carcinomas, 4 metaplastic carcinomas, 4 undifferentiated carcinomas, 3 apocrine carcinomas, 3 medullary carcinomas, 3 mixed ductal-lobular carcinomas, and one/each of the following histological subtypes: sarcomatoid carcinoma, adenoid cystic carcinoma, adenosquamous and neuroendocrine carcinoma
  2. NE not evaluated