Jun 1, 2018
The updated Vitality Age Calculator (VA.3) is an online tool giving users a snapshot of their overall health based on lifestyle choices and clinical risk factors by comparing the individual life expectancy to the average population. Healthy Vitality Age, an extension of VA.3, uses the Health Adjusted Life Expectancy to account for both mortality and morbidity while adjusting the life expectancy by the amount of time lived in suboptimal health.
The updated Vitality Age Calculator (VA.3) is an online tool that gives users a snapshot of their overall health based on lifestyle choices and clinical risk factors. While VA.3 compares the individual life expectancy (remaining years of life) to the average population life expectancy, this extension of the calculator, called Healthy Vitality Age, uses the concept of Health Adjusted Life Expectancy (HALE). HALE takes into account both mortality and morbidity by adjusting the life expectancy by the amount of time lived in less than perfect health. A Healthy Vitality Age higher than an actual age signals a lower-than-average number of years of healthy life remaining, with the difference between Healthy Vitality Age and actual age being equal to the estimated change in health adjusted life expectancy. This report documents the methodology of the Healthy Vitality Age extension to the VA.3 model and its limitations.
Validation and Testing of HVA model