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potential years of life lost


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(PYLL)

A measure of the effect of diseases and injuries in reducing the life span below national or a hypothetical ideal (counterfactual) life expectancy. The PYLL is computed for specific causes of death by summing the expected years of life remaining (according to a reference table) for each individual age at death for the cause of interest. The effect is greatest for causes operating strongly at young ages, such as AIDS, fatal vehicular injuries, and homicides in young black males in the United States. PYLL do not take disability into account and, to that extent, are a less useful measure than disability-adjusted life years (DALYs).

Subjects: Public Health and Epidemiology.


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