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Table 3 Prevalence of intrinsic subtypes and clinico-pathological characteristics

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

Characteristics Luminal A Luminal B Her2+ Basal like Unclassified p- value*
No. Of cases (%) 196 53,6% 60 16,4% 46 12,6% 46 12,6% 13 4,9%  
Mean age (years) 47 ± 12 46 ± 12 45 ± 8 49 ± 14 44 ± 14 0.4628
Mean tumor size (cm) 3.6 ± 2,5 3.9 ± 2,2 3.4 ± 2 4.4 ± 3 3,9 ± 4,3 0.5673
Age groups (years)
 ≤ 35 35 17.8% 9 15% 8 17.4% 5 11% 5 28% 0.5074
 > 35 161 82.2% 51 85% 38 82.6% 41 89% 13 72%  
Tumor size (cm)
 ≤ 2 54 27.6% 16 26,7% 14 30% 9 20% 7 39% 0.8620
 > 2 142 72.4% 44 73,3% 32 70% 37 80% 11 61%  
Histological grade (%)
 I 37 18.8% 8 13.3% 6 13% 3 6,6% 0 0% 0.0053
 II 114 58.2% 35 58.3% 21 45.6% 21 45.6% 8 45%  
 III 45 23% 17 28.3% 19 41.4% 22 47.8% 10 55%  
Vascular emboli
 Negative 124 63.3% 36 60% 28 61% 33 71.7% 14 78% 0.5028
 Positive 72 36.7% 24 40% 18 39% 13 28.3% 4 22%  
Lymph node status
 N0 66 36% 14 26% 14 35% 15 45% 6 37,5% 0.5555
 N+ 117 64% 40 74% 26 65% 18 55% 10 62,5%  
Metastasis
 M0 151 85% 39 76% 34 87% 35 81% 15 67% 0.4055
 M+ 27 15% 12 24% 5 13% 8 19% 5 33%  
  1. * Fisher test or Chi-square test.