What happens to Relative Risk after each fracture?

• A. It remains unchanged
• B. It multiplies by 1.5
• C. It multiplies by 2
• D. It decreases by 2

Answer: (C)

Relative risk is a measure used to quantify the risk of a certain event happening in one group compared to another. In the context of fractures, studies have shown that after an individual experiences a fracture, their risk of subsequent fractures significantly increases due to various factors such as underlying bone health, increased likelihood of falls, and overall bone density issues.

The choice indicating that relative risk multiplies by 2 after each fracture reflects this evidence. Each fracture acts as a strong predictor of future fractures, leading to a dramatically increased risk. This understanding is crucial for both the assessment of bone health and the development of preventive measures for individuals who have already experienced a fracture.

As for the other options, they suggest changes to relative risk that don't accurately represent the established relationship between initial and subsequent fractures. Saying it remains unchanged or decreases doesn't align with the observed clinical outcomes. Similarly, while a multiplier of 1.5 might seem possible, it does not adequately reflect the doubling effect seen in research, reinforcing why the correct answer is that relative risk multiplies by 2.