1. What is the Breast Cancer Risk Calculator?

The Breast Cancer Risk Calculator estimates a woman's risk of developing breast cancer based on age, family history, and other risk factors. It helps identify individuals who may benefit from increased screening or preventive measures.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• \( Age \) — Current age in years
• \( Family\ History \) — Number of first-degree relatives with breast cancer
• \( Factors \) — Number of additional risk factors present

Explanation: The equation accounts for the major known risk factors for breast cancer, with age being the most significant factor.

3. Importance of Risk Assessment

Details: Accurate risk assessment is crucial for determining appropriate screening intervals and considering preventive options for high-risk individuals.

4. Using the Calculator

Tips: Enter your current age, number of first-degree relatives with breast cancer, and count of additional risk factors. All values must be valid numbers.

5. Frequently Asked Questions (FAQ)

Q1: What counts as a first-degree relative?
A: First-degree relatives include mother, sisters, and daughters.

Q2: What are considered additional risk factors?
A: Factors like early menarche, late menopause, nulliparity, dense breast tissue, etc.

Q3: What is considered high risk?
A: Generally, a 5-year risk ≥1.67% or lifetime risk ≥20% is considered high.

Q4: How often should risk be reassessed?
A: Risk should be reassessed every 1-2 years or when new risk factors emerge.

Q5: Does this calculator apply to men?
A: No, this calculator is designed for women's breast cancer risk assessment.