Table 3.
General demographic data of study participants
| Variables | Values |
|---|---|
| Age (years), mean ± SD (range) | 51.53±12.83 (29–83) |
| Menarche age, mean ± SD (range) | 13.1±1.56 (10–18) |
| Menopause age, mean ± SD (range) | 44.62±14.89 (38–60) |
| First pregnancy age, mean ± SD (range) | 18.97±8.26 (14–34) |
| Breast feeding duration (months), mean ± | 41.48±40.47 (3–240) |
| SD (range) | |
| Serum level of 25-hydroxyvitamin D, mean ± | 22.85±13.98 (6.3–55.8) |
| SD (range) | |
| Positive family history for cancer (%) | 18.7 |
| Cancer stage (%) | |
| I | 25.3 |
| II | 31 |
| III | 33.8 |
| IV | 9.9 |
| Overall grade (%) | |
| I | 16.7 |
| II | 53 |
| III | 30.3 |
| Nuclear grade (%) | |
| I | 10.3 |
| II | 58.8 |
| III | 30.9 |
| Tubule formation (%) | |
| I | 6.5 |
| II | 33.9 |
| III | 59.6 |
| Mitotic rate (%) | |
| I | 40.9 |
| II | 42.9 |
| III | 16.2 |
| Tumor size (%) | |
| <2 cm | 26.1 |
| ≥2 to <5 cm | 71 |
| ≥5 cm | 2.9 |
| ER (%) | |
| Positive | 84.1 |
| Negative | 15.9 |
| PR (%) | |
| Positive | 77.9 |
| Negative | 22.1 |
| Her2/neu expression (%) | |
| Positive | 23.2 |
| Negative | 76.8 |
| Ki67 expression (%) | |
| Positive | 100 |
| Negative | 0 |