The World Health Organisation is currently conducting a new Global Burden of Disease study, which aims to measure the impact of different diseases, injuries, and risk factors on people's health worldwide.

More participants are needed to complete the web-based survey which will be used to develop disability weights for different disease states.

The survey takes 10-15 minutes to complete - it is located at:

http://www.gbdsurvey.org/

You may complete the survey more than once if you wish - you will be asked to compare different pairs of disease states each time.