WHI is "The WHI is a computer-assisted telephone interview designed to quantify lost productive work time, including time absent from work and reduced performance while at work as a result of health conditions, individually
or in combination." this is was Prof. Walter Stewart defined it in both of his studies:
- Health and Lost Productive Time in the US Workforce &
- Lost Productive Time Associated With Excess. Weight in the U.S. Workforce
I've been looking for a copy but i could not find any, reaching the Prof. is impossible through hi email...
based on the description, is there any similar questionnaire that serves the same concept?
Thank you for your time.