Table 1 Characteristics of breast tumors at time of diagnosis
Characteristics | Samples |
Cases/Controls | 226/200 |
Age at diagnosis, mean ± SD (years) | 41 ± 11 |
Range (years) | 27 – 67 |
Menopausal Status | No. (%) |
Premenopausal | 162(71.68) |
Postmenopausal | 63(27.87) |
Missing | 1(0.44) |
Estrogen receptor | |
Positive | 130 (57.52) |
Negative | 78(34.51) |
Missing | 18 (7.96) |
Progesterone receptor | |
Positive | 136 (59.29) |
Negative | 72(31.85) |
Missing | 18 (7.96) |
Estrogen/Progesterone receptor | |
ER+/PR+ | 111 (49.11) |
ER+/PR− | 25 (11.06) |
ER−/PR+ | 19 (8.40) |
ER−/PR− | 53 (23.45) |
Tumor size | |
<2 cm | 30 (13.27) |
>2 cm | 105 (46.46) |
>5 cm | 41(18.14) |
Tumor of any size with extension | 37 (16.37) |
Histological grade | |
1 | 8 (3.53) |
2 | 141 (62.38) |
3 | 59 (26.10) |
Lymph node status | |
Negative | 86(38.55) |
Positive | 132 (58.40) |
Distant metastases | |
Negative | 170(75.22) |
Positive | 38 (16.81) |