Table 3 Prevalence of intrinsic subtypes and clinico-pathological characteristics

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%