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Table 2 Description of characteristics of the study population

From: Prevalence of molecular subtypes and prognosis of invasive breast cancer in north-east of Morocco: retrospective study

Characteristics Number of cases (%)
Mean age ± SD, median (years) 46.8 ± 12, median 45
Age (years)
 ≤ 35 62 17%
 > 35 304 83%
Histological grade SBR
 I 53 15%
 II 200 55%
 III 111 30%
Average tumor size ± SD (cm) 3,7+/−2,6  
Tumor size (cm)
 ≤ 2 100 27%
 > 2 266 73%
Histologic type
 Invasive ductal carcinoma 320 87.4%
 Invasive lobular carcinoma 15 4%
 Medullar carcinoma 7 2%
 Metaplasic carcinoma 11 3%
 Other types 11 3%
AJCC stage
 I 47 14,5%
 II 108 33%
 III 114 35%
 IV 57 17.5%
Lymph node status
 N0 115 35.4%
 N+ 211 64.6%
Metastasis status
 M0 269 82.5%
 M1 57 17.5%
vascular emboli positive 131 35.8%
HR positive 259 70.8%
ER positive 204 55.7%
PR positive 236 64.5%
Her2 positive 106 29%