Excess PYLL is a crude measure of population attributable risk, which in this case quantifies the public health impact of income-related differences in premature mortality.

This slide shows excess PYLL (the dark bar from the previous chart) by cause of death in 1996.

The major causes of death contributing to income-related excess mortality were circulatory diseases, injuries, neoplasms, and infectious diseases.

Note that for excess PYLL, the first three causes were the same as for total PYLL, except that they were in reverse order.