How to calculate disability adjusted life years

You may also like to see the National Burden of Disease manual of WHO ( I contributed to these efforts), available at http://www.who.int/healthinfo/nationalburdenofdiseasemanual.pdf
If you want Indian perspective, please see our article in National Medical Journal of India in 2002: http://www.nmji.in/archives/Volume-15/issue-1/original-articles-1.pdf
This is on YLL component for states of India.