1. What Is The Combined Impairment Formula?

The Combined Impairment Formula calculates the combined value of two impairment values (A and B) using the AMA Guides method. This formula is used to determine the overall impairment when multiple factors are considered.

2. How Does The Calculator Work?

The calculator uses the combined impairment formula:

Where:

• \( A \) — First impairment value (unitless, 0-1)
• \( B \) — Second impairment value (unitless, 0-1)

Explanation: The formula accounts for the non-additive nature of impairment values, ensuring the combined value appropriately reflects the cumulative effect of multiple impairments.

3. Importance Of Combined Value Calculation

Details: Accurate combined impairment calculation is crucial for medical assessments, disability evaluations, and insurance determinations where multiple factors contribute to overall impairment.

4. Using The Calculator

Tips: Enter both impairment values as decimals between 0 and 1. The calculator will compute the combined value using the AMA Guides formula.

5. Frequently Asked Questions (FAQ)

Q1: Why use this specific formula for combining values?
A: This formula is recommended by the AMA Guides to accurately reflect how multiple impairments interact, preventing overestimation of total impairment.

Q2: What range should the input values be in?
A: Input values should be decimal values between 0 (no impairment) and 1 (maximum impairment).

Q3: Can this formula be used for more than two values?
A: For multiple values, the formula should be applied sequentially, combining values two at a time.

Q4: Are there limitations to this formula?
A: The formula assumes impairments are independent and may not accurately represent situations where impairments interact in complex ways.

Q5: How precise should the input values be?
A: Input values should be as precise as possible, typically to 4 decimal places, for accurate combined results.