| Knowledge of risk factors for breast cancer | Frequency (N = 720) | Percentage (%) |
| Aging | 438 | 60.8 |
| A woman who has never given birth to an infant capable of survival | 426 | 59.2 |
| Late age at first full-term pregnancy (>30 years) | 414 | 57.5 |
| End menstruation >55 years | 282 | 39.2 |
| Start menstruation <12 years | 312 | 43.3 |
| Family history of breast cancer | 606 | 84.2 |
| Obesity after menopause | 402 | 55.8 |
| Recent or long term use of oral contraceptive and hormone replacement therapy | 558 | 77.5 |
| Breast feeding a child | 216 | 30.0 |
| Alcohol consumption and smoking | 540 | 75.0 |
| High dose radiation to chest | 612 | 85.0 |