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Baseline characteristics of participants
| Breast cancer | Breast Centre | |
|---|---|---|
| group | group | |
| Age (yaars, mean)* | 45.6 | 44.8 |
| BMI, mean (kg/m2)* | 24.3 | 24.8 |
| Age at menarche (years, mean) | 13.0 | 13.0 |
| Nulliparity | 10.5% | 11.1% |
| Age at first childbirth (years, mean) | 23.0 | 23.4 |
| Positive family history for breast and/or ovarian cancer* | 48.8% | 56.6% |
* statistically significant difference was observed between the two groups (p < 0.05); BMI = Body mass index
