Table 1. Patient characteristics (n=86).
| Mean (range) or n (%) | Missing data n | |
|---|---|---|
| Age at diagnosis (years) | 49 (26–76) | 0 |
| Ethnic group | 0 | |
| Caucasian | 66 (77%) | |
| North African and sub-Saharan African | 19 (22%) | |
| Asian | 1 (1%) | |
| Menopausal status a | 0 | |
| Premenopausal | 53 (62%) | |
| Postmenopausal | 33 (38%) | |
| Age at menopause (years) | 49 (42–59) | 10 |
| Height (cm) | 163 (149–177) | 0 |
| Weight (kg) | 67 (46–137) | 0 |
| BMI (kg m−2) | 25 (18–53) | 0 |
| Age at menarche (years) | 13 (10–18) | 42 |
| Age at full-term pregnancy (years) | 26 (15–37) | 19 |
| Parity | 2 (0–10) | 6 |
| Ever hormone replacement therapy use | 13 (48%) | 6 |
| Current smoker | 11 (17%) | 22 |
| Tumour stage (T) | 0 | |
| T2 (size >20 mm and ⩽50 mm) | 53 (62%) | |
| T3 (size >50 mm) | 25 (29%) | |
| T4 (inflammatory) | 8 (9%) | |
| Histologic type of breast cancer | 0 | |
| IDC | 76 (88%) | |
| ILC | 10 (12%) | |
Abbreviations: BMI=body mass index; IDC=invasive ductal carcinoma; ILC=invasive lobular carcinoma.
a
Menopausal status refers to the menopausal status at the time of diagnosis. Menopause was defined as amenorrhea for at least 12 months.