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Table 1 Distribution of patients according to clinical characteristics

From: Prevalence of germline mutations in the TP53 gene in patients with early-onset breast cancer in the Mexican population

Characteristic Cases (n = 78)
N %
Agea 32 (23–43)  
Clinical Stage
 I/IIA 31 39.8
 IIB/III/IV 41 52.5
 Not specified 6 7.7
Histological Type
 IDC/ILC 68 87.2
 DCIS/LCIS 4 5.1
 Others 1 1.3
 Not specified 5 6.4
Histological Subtype
 Luminal A/B 29 37.2
 HER2 + 13 16.7
 Triple Positive 11 14.1
 Triple Negative 19 24.4
 Not specified 6 7.7
  1. a Mean (max-min) IDC: infiltrate ductal carcinoma, ILC: infiltrate lobular carcinoma, DCIS: ductal carcinoma in situ, LCIS: lobular carcinoma in situ