Table 2.

General demographic data of study participants

Variables	Values
Age (years) (mean ± SD)	51.79 ± 13.54 (29–81)
Menarche age (years) (mean ± SD)	13 ± 1.65 (10–18)
Menopause age (years) (mean ± SD)	44.91 ± 14.91 (38–60)
First pregnancy age (years) (mean ± SD)	18.04 ± 8.36 (14–32)
Breast feeding duration (months) (mean ± SD)	41.62 ± 34.1 (3–120)
Cancer stage (%)
I	30.8
II	28.8
III	30.8
IV	9.6
Overall grade (%)
I	17
II	49
III	34
Mitotic rate (%)
I	45.2
II	42.9
III	11.9
Tumor size (%)
< 2 cm	32
≥ 2 cm, < 5 cm	66
≥ 5 cm	2
Estrogen receptor (%)
Positive	87.8
Negative	12.2
Progesterone receptor (%)
Positive	77.1
Negative	22.9
Her2/neu expression (%)
Positive	25
Negative	75
Ki67 expression (%)
Positive	100
Negative	0