Present study (<35yrs ) Mohanti et al. [8](<35yrs) Raina et al.[9](≤35yrs) M. Colleoni et al. [21](<35yrs) RA Walker et al. (< 35 yrs)[16] Hanna Fredholm et al. (<35yrs)[22]
% of  patients 11.25% 5.5% 8% 13% - 2.1%
Stage I II III IV 0% 33.3% 52.8% 13.9% 3% 20% 55% 22% 3% 20% 55% 22% 48% - - - - 26% 54% 11% 3.2%
HPE IDC 100% IDC 94% IDC93% - IDC 100%  
Er /pr + Her 2 + Triple negative 38.9% 22.2% 50% 40% 37% 31% 33 30 33 Er neg38%, prneg 49% 39% Na Er + 57%,pr+37% 22% Er/pr + 46
Grade I II III Ki 67 0% 13.9% 86.1% - 60% high grade 30% 8.2% 29.9% 61.9%  KI 67 ≥ 20% =71% 0% 30% 70% low 20%.medium 13% ,high 67% 3% 8% 24%
Pathological node + 51 % 56% 55% 33 %(1-3 node) 10% > 10 node + 46% 43% (1-3node 25.1% ≥ nodes18.5%)
LVE 43% - - 48%    
HPE – Histopathological examination, IDC – invasive ductal carcinoma, LVElymphovascular emboli.
Table 3: Comparison of various Indian and western studies of breast cancer in young women.